All Compounds

Full searchable database

119 compounds

Showing all 119 compounds

BPC-157

Body Protection Compound 157

Healing & RecoveryPreliminary / Experimental

A research peptide derived from a protective protein found in gastric juice, commonly studied for its potential roles in tissue healing and recovery. Most frequently explored in research involving tendons, ligaments, muscles, and the gastrointestinal tract.

Half-lifeHuman pharmacokinetic half-life has not been established
Mol Weight1,419.53 Da

Preliminary research strength

TB-500

Thymosin Beta-4 Synthetic Fragment

Healing & RecoveryPreliminary / Experimental

A synthetic heptapeptide corresponding to the actin-binding motif LKKTETQ (residues 17–23 of thymosin beta-4). This record covers the LKKTETQ fragment only — not full-length thymosin beta-4, which is a distinct 43-amino-acid protein. Studied in preclinical models for wound healing, anti-inflammatory, and tissue repair effects.

Half-lifeHuman pharmacokinetic half-life has not been established
Mol Weight889.01 Da

Preliminary research strength

Ipamorelin

Ipamorelin Acetate

Growth HormonePreliminary / Experimental

A selective growth hormone secretagogue studied for its ability to prompt the body's own growth hormone release through a specific receptor pathway. Among the most selective compounds of its type, commonly explored in anti-aging and metabolic research.

Half-lifeHuman pharmacokinetic half-life is not established for clinical use
Mol Weight711.85 Da

Preliminary research strength

CJC-1295

CJC-1295 with DAC (Drug Affinity Complex)

Growth HormonePreliminary / Experimental

A modified growth hormone-releasing hormone analogue studied for its ability to extend the body's natural growth hormone release signals. Commonly explored in research on growth hormone biology, body composition, and metabolic health.

Half-life~5.8–8.1 days in the cited CJC-1295 with DAC study
Mol Weight3,647.3 Da

Preliminary research strength

Sermorelin

Sermorelin Acetate (GHRH 1-29)

Growth HormoneModerate Evidence

A synthetic version of the first 29 amino acids of growth hormone-releasing hormone (GHRH), the natural signal the hypothalamus uses to prompt pituitary growth hormone production. Studied in the context of age-related decline in growth hormone secretion and pituitary function assessment.

Half-lifeApproximately 4.3 minutes mean IV disappearance half-time in normal men (Soule et al. 1994); subcutaneous and compounded-formulation pharmacokinetics for GHRH(1–29)-NH₂ have not been separately established
Mol Weight3,357.93 Da

Moderate research strength

Melanotan II

Melanotan-2 (MT-2)

MelanocortinPreliminary / Experimental

A synthetic analog of alpha-melanocyte-stimulating hormone studied for its simultaneous effects on skin pigmentation, sexual arousal pathways, and appetite. Not approved for medical use; most evidence comes from preclinical research and small, uncontrolled human studies.

Half-lifePharmacokinetic data for Melanotan II in humans are limited; half-life estimates in the range of 1–2 hours have been reported in experimental contexts, but route-specific and population-specific human PK has not been robustly established
Mol Weight1,024.18 Da

Preliminary research strength

PT-141

Bremelanotide

MelanocortinStrong Human Evidence

An FDA-approved melanocortin receptor agonist used as VYLEESI for acquired, generalized HSDD in premenopausal women. It acts through central nervous system pathways involved in sexual desire.

Half-life~2.7 hours
Mol Weight1,025.2 Da

Strong research strength

Semaglutide

Semaglutide (GLP-1 Receptor Agonist)

MetabolicStrong Human Evidence

An FDA-approved GLP-1 receptor agonist used in the treatment of type 2 diabetes and chronic weight management. One of the most extensively studied metabolic compounds available, with large-scale clinical trial data supporting its effects on blood sugar, body weight, and cardiovascular health.

Half-life~1 week after subcutaneous administration; formulation-specific labeling applies
Mol Weight4,113.58 Da

Established research strength

Tirzepatide

Tirzepatide (GIP/GLP-1 Dual Agonist)

MetabolicStrong Human Evidence

An FDA-approved dual hormone receptor agonist activating both GIP and GLP-1 pathways, used in the treatment of type 2 diabetes and chronic weight management. Clinical trials have demonstrated among the largest weight reductions of any pharmacological compound studied to date.

Half-life~5 days after subcutaneous administration
Mol Weight4,813.5 Da

Established research strength

Hexarelin

Hexarelin (Examorelin)

Growth HormonePreliminary / Experimental

A synthetic growth hormone secretagogue studied for its ability to stimulate growth hormone release, with additional research interest in potential cardioprotective and neuroprotective effects that appear to be independent of its hormonal activity.

Half-lifeExperimental pharmacokinetics are reported, but no clinical-use half-life is established
Mol Weight887.04 Da

Preliminary research strength

GHRP-6

Growth Hormone Releasing Peptide 6

Growth HormonePreliminary / Experimental

A growth hormone-releasing peptide studied for its ability to stimulate growth hormone secretion and, notably, to strongly stimulate appetite — a property that has attracted research interest in muscle wasting and cachexia contexts.

Half-lifeExperimental administrations are short-acting; no clinical-use half-life is established
Mol Weight873.03 Da

Preliminary research strength

Epitalon

Epithalon (Epithalamin Tetrapeptide)

Anti-agingPreliminary / Experimental

A synthetic tetrapeptide originally derived from a bovine pineal gland extract, studied for its potential connections to telomere biology, antioxidant activity, and age-related changes in the pineal gland. The majority of research was conducted by Russian scientists over several decades.

Half-lifeUnknown (very short; minutes)
Mol Weight390.35 Da

Preliminary research strength

Selank

Selank (TP-7)

Nootropic & CNSModerate Evidence

A synthetic tuftsin-derived peptide studied primarily for anxiety, stress, and cognitive-related effects. Small human studies have reported anxiolytic effects, while much of the detailed mechanism research remains preclinical. Most of the published human evidence comes from Russian research groups.

Half-lifeShort-acting; precise human pharmacokinetics are not well established
Mol Weight751.87 Da

Moderate research strength

Semax

Semax (ACTH 4-7 Pro-Gly-Pro)

Nootropic & CNSPreliminary / Experimental

A synthetic heptapeptide derived from a fragment of ACTH, used in clinical practice in Russia for neuroprotection and cognitive support following stroke and brain injury. Studied for its potential effects on BDNF expression, memory enhancement, and neurological recovery.

Half-lifeNot established in humans
Mol Weight813.94 Da

Moderate research strength

AOD-9604

Anti-Obesity Drug 9604

MetabolicPreliminary / Experimental

A modified fragment of human growth hormone studied for its potential role in fat metabolism, designed to explore the lipolytic properties of growth hormone without influencing blood sugar or growth-promoting pathways. Also explored in cartilage and joint tissue research.

Half-lifeNot established in verified human pharmacokinetic studies for this record
Mol Weight1,815.13 Da

Preliminary research strength

Follistatin 344

Follistatin-344 (FST-344)

Muscle & PerformancePreliminary / Experimental

The cell-associated isoform of follistatin, a naturally occurring inhibitor of myostatin and activin that places a brake on muscle growth. Studied in muscle biology, Duchenne muscular dystrophy research, and as a scientific tool for understanding myostatin-pathway inhibition.

Half-lifeHuman pharmacokinetic half-life for injectable FST-344 peptide is not established in verified sources
Mol Weight37,000 Da

Preliminary research strength

LL-37

Cathelicidin Antimicrobial Peptide LL-37

Immune & AntimicrobialPreliminary / Experimental

The only known human cathelicidin antimicrobial peptide, naturally produced by immune cells, skin, and mucosal surfaces as part of the innate immune defense. Studied for its broad-spectrum antimicrobial activity, wound healing support, and immunomodulatory role in host defense.

Half-lifeUnknown; rapidly degraded by proteases in vivo
Mol Weight4,493.34 Da

Preliminary research strength

NAC

N-Acetyl Cysteine

AntioxidantStrong Human Evidence

N-Acetyl Cysteine — a well-established acetylated form of the amino acid cysteine, used for over 50 years as a mucolytic and as the definitive treatment for acetaminophen overdose. Extensively studied as a glutathione precursor, antioxidant, and anti-inflammatory agent across a wide range of conditions.

Half-life~6 hours (oral); ~1–2 hours (IV)
Mol Weight163.19 Da

Established research strength

Dihexa

Dihexa (N-hexanoic-Tyr-Ile-(6)-amino hexanoic amide)

Nootropic & CNSPreliminary / Experimental

A synthetic peptide designed to penetrate the blood-brain barrier and activate the HGF/c-Met signaling pathway, which promotes synapse formation between neurons. Studied in the context of Alzheimer's disease research and cognitive function.

Half-lifeHuman pharmacokinetic half-life has not been established.
Mol Weight477.68 Da

Preliminary research strength

Thymosin Alpha-1

Thymalfasin (Thymosin Alpha-1)

Immune & AntimicrobialModerate Evidence

A naturally occurring thymic peptide involved in T-cell maturation and immune system regulation. Used clinically in some countries for chronic viral hepatitis and immune support in cancer patients; studied internationally for its immunomodulatory effects in immune-compromised states.

Half-lifeNot established as a universal human value
Mol Weight3,108.4 Da

Moderate research strength

GHK-Cu

Glycine-L-Histidine-L-Lysine Copper Peptide

Anti-agingPreliminary / Experimental

A naturally occurring copper-binding tripeptide found in human plasma, wound fluid, and saliva. In-vitro fibroblast studies show stimulation of collagen and sulfated glycosaminoglycan synthesis; a randomized topical post-laser study found no significant objective improvement over control, although patient satisfaction was higher. Circulating levels decline significantly with age.

Half-lifeNot established for human injectable use in verified sources
Mol Weight340.38 Da

Preliminary research strength

SS-31

Elamipretide (Szeto-Schiller Peptide 31)

Anti-agingStrong Human Evidence

Elamipretide (SS-31) is FDA-approved as FORZINITY for improving muscle strength in adult and pediatric patients (≥30 kg) with Barth syndrome. Its use for other mitochondrial conditions, aging, heart failure, and neurological indications remains investigational.

Half-life~1–2 hours (based on clinical pharmacology data from Barth syndrome trials)
Mol Weight639.85 Da

Strong research strength

MOTS-c

Mitochondrial Open Reading Frame of the 12S rRNA Type-c

MetabolicPreliminary / Experimental

A 16-amino-acid peptide encoded within mitochondrial DNA, discovered in 2015. Studied for its roles in metabolic regulation, insulin sensitivity, and longevity biology. Often discussed as a potential exercise-mimetic compound due to its overlapping effects with physical activity at the cellular level.

Half-lifeNot established in humans
Mol Weight2,174.6 Da

Preliminary research strength

Humanin

Humanin (Mitochondria-Derived Peptide)

Anti-agingPreliminary / Experimental

A small peptide encoded within the mitochondrial genome, originally discovered in research on familial Alzheimer's disease resistance. Studied for neuroprotective and cytoprotective properties, with circulating levels observed to decline significantly with age.

Half-lifeNot established for exogenous administration in humans
Mol Weight2,685.1 Da

Preliminary research strength

KPV

Lysine-Proline-Valine (α-MSH C-terminal Tripeptide)

Healing & RecoveryPreliminary / Experimental

A short tripeptide derived from alpha-MSH, studied in animal and laboratory research for anti-inflammatory mechanisms — particularly in the gut — including NF-κB pathway-related work. These preclinical findings do not establish human intestinal benefit.

Half-lifeHuman pharmacokinetic half-life has not been established.
Mol Weight342.43 Da

Preliminary research strength

DSIP

Delta Sleep-Inducing Peptide

Nootropic & CNSPreliminary / Experimental

A naturally occurring neuropeptide originally isolated from rabbit blood during deep sleep, studied for its potential effects on sleep architecture and the stress response. Human evidence is limited and results from studies have been inconsistent.

Half-lifeHuman pharmacokinetic half-life has not been established in this record.
Mol Weight848.86 Da

Preliminary research strength

Liraglutide

Liraglutide (GLP-1 Receptor Agonist)

MetabolicStrong Human Evidence

A GLP-1 receptor agonist represented here through the distinct FDA-approved products Victoza and Saxenda; their labels and trial findings must not be interchanged.

Half-lifeApproximately 13 hours in the Victoza prescribing information; product labeling is formulation-specific.
Mol Weight3,751.2 Da

Established research strength

Pinealon

Pinealon (EDR Brain-Directed Tripeptide)

Nootropic & CNSPreliminary / Experimental

A synthetic tripeptide studied primarily in preclinical and in-vitro research. The current evidence set does not establish human effects on cognition, aging, neuroprotection, or retinal disease.

Half-lifeHuman pharmacokinetic half-life has not been established.
Mol Weight418.4 Da

Preliminary research strength

Retatrutide

Retatrutide (GLP-1/GIP/GCGR Triple Receptor Agonist)

MetabolicStrong Human Evidence

An investigational once-weekly triple agonist targeting GIP, GLP-1, and glucagon receptors. Lilly reported Phase 3 topline average weight-loss results of up to 20.8% at 80 weeks in TRIUMPH-2 and up to 22.6% at 80 weeks in TRIUMPH-3. The complete trial reports have not yet been peer reviewed, and retatrutide is not FDA approved.

Half-lifeHuman pharmacokinetic half-life has not been established in this record.
Mol Weight4,980 Da

Strong research strength

VIP

Vasoactive Intestinal Peptide

Immune & AntimicrobialPreliminary / Experimental

A naturally occurring 28-amino-acid neuropeptide. The current record is limited to route-specific human IV pharmacology, inhaled pulmonary-hypertension research, and aviptadil trial-status context; it does not establish broad therapeutic benefit.

Half-lifeHuman pharmacokinetics are route-specific; no route-general clinical half-life is established in this record.
Mol Weight3,326.85 Da

Preliminary research strength

Tesamorelin

Tesamorelin Acetate (GHRH Analogue)

Growth HormoneStrong Human Evidence

An FDA-approved GHRH analogue used to reduce excess abdominal fat in HIV-infected adults with lipodystrophy. It stimulates the body’s own growth hormone and IGF-1 pathways and remains under investigation for other metabolic and neurological questions.

Half-lifeShort plasma half-life; clinical effects are mediated through stimulation of endogenous growth hormone and IGF-1 signaling after subcutaneous administration
Mol Weight5,135.9 Da

Established research strength

GHRP-2

Growth Hormone Releasing Peptide-2 (Pralmorelin)

Growth HormoneModerate Evidence

A synthetic growth hormone secretagogue studied in controlled human GH-response, diagnostic, and appetite research. The cited studies do not establish a general therapeutic regimen, long-term safety, or superiority to other secretagogues.

Half-lifeHuman pharmacokinetic half-life has not been established in this record.
Mol Weight817.95 Da

Moderate research strength

Gonadorelin

Gonadorelin (Synthetic GnRH / LHRH Decapeptide)

Growth HormoneStrong Human Evidence

A synthetic version of GnRH — the natural hormone produced by the hypothalamus to regulate the reproductive hormone axis. Historical human evidence includes diagnostic and pulsatile-treatment contexts for hypogonadotropic hypogonadism; it does not establish a current U.S. marketed human product or a general TRT-adjunct use.

Half-lifeRoute-specific human pharmacokinetic half-life has not been established in this record.
Mol Weight1,182.3 Da

Strong research strength

Pramlintide

Pramlintide Acetate (Amylin Analogue)

MetabolicStrong Human Evidence

A synthetic analog of amylin — the hormone co-secreted with insulin by pancreatic beta cells — that helps regulate postprandial blood sugar through mechanisms distinct from insulin. FDA-approved as an adjunct to insulin therapy in both type 1 and type 2 diabetes.

Half-lifeApproximately 48 minutes after subcutaneous administration, according to the current SYMLINPEN label.
Mol Weight3,949.4 Da

Established research strength

Cagrilintide

Cagrilintide (Long-Acting Amylin Analogue — AM833)

MetabolicModerate Evidence

A long-acting amylin receptor agonist in late-stage clinical development, studied primarily in combination with Semaglutide for obesity and type 2 diabetes. Designed to complement GLP-1 receptor agonism through a distinct but synergistic mechanism.

Half-lifeHuman pharmacokinetics remain investigational; no approved dosing is established.
Mol Weight4,014.6 Da

Moderate research strength

Exenatide

Exenatide (exendin-4–based GLP-1 receptor agonist)

MetabolicStrong Human Evidence

An exendin-4–based GLP-1 receptor agonist used in approved prescription products for labeled uses. In EXSCEL, once-weekly exenatide established cardiovascular safety noninferiority, not cardiovascular superiority.

Half-lifeImmediate-release exenatide: approximately 2.4 hours. Extended-release products have formulation-specific prolonged release; depot duration should not be interpreted as an equivalent elimination half-life.
Mol Weight4,186.6 Da

Established research strength

Adipotide

Adipotide (Proapoptotic Vascular Targeting Peptide — CKGGRAKDC-GG-KLAKLAKKLAKLAK)

MetabolicPreliminary / Experimental

An investigational preclinical peptide whose approved evidence is bounded to obese rhesus-macaque work. The study’s renal-toxicity signal is a material limit on translation, and there is no human interventional evidence.

Half-lifeUnknown (no human pharmacokinetic data)
Mol Weight3,259.1 Da

Preliminary research strength

FOXO4-DRI

FOXO4-D-Retro-Inverso Senolytic Peptide

Anti-agingPreliminary / Experimental

A synthetic peptide designed to disrupt a specific protein interaction that allows senescent cells to evade programmed cell death. Studied in the emerging field of senolytics — approaches aimed at selectively clearing aged, dysfunctional cells from tissues to improve tissue function.

Half-lifeNot established in humans
Mol Weight2,822.4 Da

Preliminary research strength

GDF-11

Growth Differentiation Factor 11 (BMP-11)

Anti-agingPreliminary / Experimental

A TGF-β family protein studied in contested, assay-sensitive aging research. Mouse findings vary by model, dose, and measurement approach; no verified human interventional evidence is established.

Half-lifeUnknown in humans; very limited pharmacokinetic characterization
Mol Weight12,434 Da

Preliminary research strength

Thymalin

Thymalin (heterogeneous bovine thymic peptide preparation)

Immune & AntimicrobialPreliminary / Experimental

A heterogeneous bovine thymic peptide preparation that must be distinguished from the defined Glu-Trp/Thymogen product. Russian literature reports immune and mortality-associated findings, but these are not independently replicated and do not establish a causal longevity benefit.

Half-lifeNot established for the heterogeneous Thymalin preparation; do not substitute Glu-Trp/Thymogen pharmacokinetics.

Preliminary research strength

ARA-290

ARA-290 (Cibinetide — EPO Helix-B Surface Peptide)

Healing & RecoveryPreliminary / Experimental

A non-erythropoietic peptide derived from the tissue-protective region of erythropoietin (EPO), engineered to retain EPO's nerve-protective effects without stimulating red blood cell production. Studied in small fiber neuropathy and sarcoidosis-related nerve damage.

Half-lifeNot established as a universal human value
Mol Weight1,257.3 Da

Preliminary research strength

MGF

Mechano Growth Factor (MGF/IGF-1Ec research terminology)

Muscle & PerformancePreliminary / Experimental

MGF/IGF-1Ec is research terminology spanning endogenous expression biology, synthetic MGF-E peptides, and PEG-MGF; these are not interchangeable entities. The retained evidence is limited to cell-culture and animal research.

Half-lifeHuman pharmacokinetics are not established for MGF-E or PEG-MGF; do not state a native or PEGylated human half-life.
Mol Weight2,820.2 Da

Preliminary research strength

Cerebrolysin

Cerebrolysin (standardized porcine brain-derived peptide/amino-acid mixture)

Nootropic & CNSModerate Evidence

A standardized porcine brain-derived peptide/amino-acid mixture, not a single molecular entity. Clinical benefit is mixed and uncertain; evidence must remain condition-, population-, endpoint-, and product-specific.

Half-lifeNot representable as a single pharmacokinetic value because the preparation is heterogeneous.

Moderate research strength

Oxytocin

Oxytocin (Cyclic Nonapeptide Neurohormone)

Nootropic & CNSPreliminary / Experimental

An endogenous hormone with specified labeled obstetric uses and limited, study-specific intranasal social-cognition research.

Half-lifeThe selected labeling describes rapid intravenous clearance; this record does not infer a central-nervous-system duration from intranasal administration.
Mol Weight1,007.19 Da

Preliminary research strength

P021

P021 (CNTF-derived neurotrophic research peptide)

Nootropic & CNSPreliminary / Experimental

A modified CNTF-derived pentapeptide studied only in verified animal models. It has no verified human interventional evidence, established human pharmacokinetics, or established human safety profile.

Half-lifeNo established human pharmacokinetics.
Mol Weight578.3 Da

Preliminary research strength

IGF-1 LR3

Insulin-like Growth Factor 1 Long Arg3

Growth HormonePreliminary / Experimental

Long R3 IGF-I is a research variant that must be distinguished from native IGF-1, mecasermin, DES(1-3)-IGF-I, and other analogues. The retained evidence is exact-variant-specific nonhuman research.

Half-lifeHuman pharmacokinetics are not established for Long R3 IGF-I. Animal studies report species- and analogue-specific clearance; do not claim a 20–30-hour human half-life.

Preliminary research strength

MK-677 (ibutamoren)

MK-677 (ibutamoren)

Longevity & MetabolicModerate Evidence

A non-peptide, orally active small-molecule ghrelin-receptor agonist with bounded human GH/IGF-1 biomarker and body-composition findings. It remains investigational and is not FDA-approved.

Half-lifeDo not equate once-daily pharmacodynamic activity with a 24-hour elimination half-life; pharmacokinetics require a direct source.
Mol Weight624.77 Da

Moderate research strength

Ghrelin

Ghrelin (Growth Hormone-Releasing Peptide, Endogenous)

Growth HormoneStrong Human Evidence

The body's principal hunger-signaling hormone, a 28-amino-acid peptide secreted primarily by the stomach that simultaneously stimulates appetite and triggers growth hormone release. Widely studied in appetite regulation, energy balance, metabolic biology, and the neuroscience of hunger and reward.

Half-lifeEndogenous physiology is established; a universal exogenous PK value is not provided here
Mol Weight3,369.9 Da

Strong research strength

Kisspeptin-10

Kisspeptin-10 (KP-10)

Growth HormoneModerate Evidence

A naturally occurring hypothalamic peptide that acts as a master upstream regulator of the reproductive hormone axis, triggering GnRH release and initiating the cascade that drives LH, FSH, and sex hormone production. Studied in reproductive medicine and the biology of puberty onset.

Half-lifeNot established as a universal human value
Mol Weight1,302.5 Da

Moderate research strength

Triptorelin

Triptorelin

Reproductive & EndocrineStrong Human Evidence

A synthetic GnRH agonist with product-specific U.S. approvals: TRELSTAR for advanced prostate cancer and TRIPTODUR for central precocious puberty in patients aged 2 years and older.

Half-lifeFree-peptide pharmacokinetics and depot release are formulation-specific. One-, three-, and six-month product schedules describe depot release/administration intervals, not a universal plasma elimination half-life.
Mol Weight1,311.5 Da

Strong research strength

Setmelanotide

Setmelanotide (Imcivree)

MelanocortinStrong Human Evidence

A cyclic octapeptide MC4R agonist with label-specific U.S. indications and age boundaries.

Half-lifeApproximately 11 hours for IMCIVREE (setmelanotide) in current label context.
Mol Weight1,117.3 Da

Strong research strength

Alpha-MSH

Alpha-Melanocyte Stimulating Hormone

MelanocortinPreliminary / Experimental

An endogenous 13-amino-acid peptide with limited exogenous human investigational evidence.

Mol Weight1,664.9 Da

Preliminary research strength

Mazdutide

Mazdutide (IBI362)

MetabolicStrong Human Evidence

A modified 34-amino-acid dual GLP-1/glucagon receptor agonist with China-specific approvals and direct Phase 3 evidence.

Strong research strength

Glucagon

Glucagon

MetabolicStrong Human Evidence

A native 29-amino-acid hormone with product-specific labeled glucagon uses.

Mol Weight3,482.8 Da

Strong research strength

Angiotensin-(1-7)

Angiotensin-(1-7)

MetabolicModerate Evidence

An investigational heptapeptide of the renin-angiotensin system.

Mol Weight899 Da

Moderate research strength

Somatostatin-14

Somatostatin-14 (Growth Hormone Inhibiting Factor)

MetabolicStrong Human Evidence

The endogenous hypothalamic hormone that broadly suppresses growth hormone, TSH, insulin, glucagon, and multiple gastrointestinal hormones. Breaks down within minutes in the body, limiting direct therapeutic use, but its long-acting analogs Octreotide and Lanreotide are FDA-approved and widely used.

Half-life~1–3 minutes (extremely short; degraded by tissue peptidases)
Mol Weight1,637.9 Da

Strong research strength

PE-22-28

PE-22-28 (Spadin-derived TREK-1 inhibitor)

Nootropic & CNSPreliminary / Experimental

A short synthetic peptide derived from the neurotensin receptor propeptide, studied as a potential novel antidepressant through TREK-1 potassium channel inhibition — a mechanism entirely distinct from conventional antidepressant pharmacology. All available research has been conducted in rodent models.

Half-lifeNot established in humans
Mol Weight773.9 Da

Preliminary research strength

Omberacetam

Omberacetam (Noopept)

Nootropic & CNSPreliminary / Experimental

A small molecule also known as Noopept or GVS-111.

Mol Weight318.37 Da

Preliminary research strength

TRH

Thyrotropin-releasing Hormone (Protirelin)

Nootropic & CNSStrong Human Evidence

The smallest known hypothalamic releasing hormone, which regulates thyroid function through the pituitary. Its injectable diagnostic form (protirelin/Thyrel) was FDA-approved but is now discontinued. Proposed direct CNS effects — wakefulness, antidepressant activity, neuroprotection — remain mostly preclinical.

Half-life~5 minutes (rapidly degraded by TRH-degrading ectoenzyme)
Mol Weight362.38 Da

Established research strength

Vasopressin

Arginine Vasopressin (AVP)

Nootropic & CNSStrong Human Evidence

Native arginine vasopressin with VASOSTRICT label-scoped U.S. use.

Mol Weight1,084.24 Da

Strong research strength

Larazotide

Larazotide Acetate (AT-1001)

Healing & RecoveryModerate Evidence

A synthetic octapeptide under investigation, including celiac-disease and Long-COVID research contexts.

Mol Weight736.9 Da

Moderate research strength

PEG-MGF

Non-standardized PEGylated MGF-related research constructs

Muscle & PerformancePreliminary / Experimental

A non-standardized category of PEGylated MGF-related research constructs.

Preliminary research strength

Follistatin 315

Follistatin Isoform 315 (FST-315)

Muscle & PerformancePreliminary / Experimental

The mature circulating follistatin isoform, distinct from FST344 gene-transfer constructs.

Mol Weight35,000 Da

Preliminary research strength

Cortistatin-14

Cortistatin-14

Immune & AntimicrobialPreliminary / Experimental

A neuropeptide produced in the brain that is structurally similar to somatostatin but activates additional receptors, giving it a distinct immunomodulatory and anti-inflammatory profile. Studied in models of inflammatory diseases, sepsis, and autoimmune conditions.

Half-lifeHuman pharmacokinetic half-life has not been established.
Mol Weight1,686 Da

Preliminary research strength

Thymulin

Thymulin (Facteur Thymique Sérique)

Immune & AntimicrobialPreliminary / Experimental

A zinc-dependent nonapeptide secreted exclusively by thymic epithelial cells, essential for promoting T-cell maturation and differentiation. Studied as both a marker and potential therapeutic target in immune aging research, given its documented decline alongside age-related thymic involution.

Half-lifeHuman pharmacokinetic half-life has not been established.
Mol Weight858 Da

Preliminary research strength

Glutathione

Glutathione (Reduced) — γ-L-Glutamyl-L-Cysteinyl-Glycine

AntioxidantPreliminary / Experimental

The body's most abundant endogenous antioxidant tripeptide, central to cellular defense against oxidative stress. Human evidence for therapeutic administration is indication-specific — a small open-label Parkinson's disease study and a historical chemotherapy-neuroprotection trial — rather than support for the broader range of uses sometimes claimed.

Half-life~2–3 minutes (IV, plasma); intracellular GSH pools maintained by de novo synthesis with turnover of ~2–3 hours
Mol Weight307.32 Da

Preliminary research strength

Carnosine

L-Carnosine (β-Alanyl-L-Histidine)

AntioxidantPreliminary / Experimental

An endogenous dipeptide studied for its roles as a pH buffer, antioxidant, and anti-glycation agent. Three small randomized human trials report exploratory glycemic and biomarker findings in diabetes-related conditions; broader cognitive, anti-aging, and exercise claims remain preclinical.

Half-life~3–4 hours (oral); rapidly hydrolyzed in plasma by carnosinase (CNDP1); tissue levels more stable
Mol Weight226.23 Da

Preliminary research strength

IGF-1 (Mecasermin)

Insulin-Like Growth Factor 1 / Mecasermin (Increlex)

Growth HormoneStrong Human Evidence

Mecasermin is a distinct recombinant prescription product with a narrow labeled pediatric indication; it is not interchangeable with IGF-1 research analogs or consumer uses.

Half-lifeProduct-label pharmacokinetic information is formulation- and population-specific; this record does not provide a general half-life for endogenous IGF-1 or other analogs.
Mol Weight7,647.6 Da

Established research strength

Thymosin Beta-4

Thymosin Beta-4 (Tβ4) — Full-Length

Healing & RecoveryPreliminary / Experimental

The full-length, N-terminally acetylated 43-amino-acid precursor from which the TB-500 fragment is derived. Full-length Tβ4 has been studied in registered human clinical trials for dry eye disease, with mixed and largely inconclusive results — it has not been shown to be an approved or established therapy.

Half-life~30 minutes to 6 hours (estimated; limited pharmacokinetic data in humans)
Mol Weight4,963.4 Da

Moderate research strength

GLP-1 (Native)

Glucagon-Like Peptide-1 (7-36 amide) — Endogenous Incretin

MetabolicStrong Human Evidence

The naturally produced incretin hormone that inspired the GLP-1 receptor agonist drug class. Direct human studies confirm its role in glucose-dependent insulin secretion and glucagon suppression; the cardiovascular and other outcome data associated with GLP-1 drugs belong to those separate drug entries.

Half-life~1–2 minutes (endogenous; rapidly cleaved by DPP-4 at position 2, converting active GLP-1 to inactive GLP-1(9-36))
Mol Weight3,297.7 Da

Established research strength

GIP

Glucose-Dependent Insulinotropic Polypeptide (GIP 1-42)

MetabolicStrong Human Evidence

An endogenous incretin hormone secreted after meals that stimulates insulin release, though its effect is blunted in type 2 diabetes. GIP receptor biology underlies the design of tirzepatide, a separate FDA-approved dual-agonist drug; this entry describes native GIP itself, not that drug's clinical outcomes.

Half-life~2–7 minutes (endogenous; cleaved by DPP-4 to inactive GIP(3-42))
Mol Weight4,983.6 Da

Strong research strength

PYY 3-36

Peptide YY 3-36 (PYY 3-36)

MetabolicModerate Evidence

A gut-derived peptide hormone released after meals that suppresses appetite by acting on Y2 receptors in the hypothalamus and gut. Studied as one of the body's natural satiety signals and of research interest in obesity and appetite neuroscience.

Half-lifeNo validated product-specific pharmacokinetic half-life for exogenous PYY 3-36 has been established.
Mol Weight4,049.6 Da

Moderate research strength

FGF-21

Fibroblast Growth Factor 21 (FGF-21)

MetabolicPreliminary / Experimental

A metabolic hormone produced by the liver that regulates fat metabolism, insulin sensitivity, and energy balance, and is elevated naturally during fasting. Studied for its therapeutic potential in non-alcoholic steatohepatitis (NASH/MASH), metabolic syndrome, and dyslipidemia.

Half-lifeNo validated product-specific pharmacokinetic half-life for native FGF21 has been established; analog PK is not native FGF21 evidence.
Mol Weight18,880 Da

Preliminary research strength

α-Klotho

Alpha-Klotho (Soluble Klotho, sKlotho)

Anti-agingPreliminary / Experimental

A transmembrane glycoprotein first identified through a 1997 mouse-genetics experiment showing a phenotype resembling premature ageing when the gene was disrupted. In a human hemodialysis population, lower circulating soluble Klotho has been associated with higher mortality and cardiovascular events — an observational finding, not a demonstrated anti-aging or treatment effect.

Half-lifeNot well-characterized; circulating sKlotho half-life estimated at hours to days; endogenous serum levels detectable
Mol Weight116,181 Da

Preliminary research strength

Orexin-A

Orexin-A (Hypocretin-1)

Nootropic & CNSPreliminary / Experimental

An endogenous hypothalamic neuropeptide that is the brain's principal wakefulness-promoting signal. The selective destruction of orexin-producing neurons is the direct biological cause of narcolepsy type 1, making it central to sleep medicine and circadian research.

Half-lifeHuman pharmacokinetic half-life after exogenous administration has not been established.
Mol Weight3,561.1 Da

Preliminary research strength

ACTH 1-24

Adrenocorticotropic Hormone 1-24 / Cosyntropin (Tetracosactide)

Nootropic & CNSStrong Human Evidence

A synthetic ACTH(1-24) fragment used as the diagnostic agent cosyntropin to help evaluate adrenal cortisol response.

Half-lifeNo general pharmacokinetic claim is made here; this record is limited to CORTROSYN diagnostic use.
Mol Weight2,933.5 Da

Strong research strength

Met-Enkephalin

Methionine-Enkephalin (Opioid Growth Factor, OGF)

Immune & AntimicrobialPreliminary / Experimental

One of the body's endogenous opioid peptides (as Opioid Growth Factor, OGF), studied mainly through preclinical and mechanistic cancer-biology research. Human evidence includes early Phase I safety work and a small Phase II open-label study in advanced pancreatic cancer; neither establishes anticancer efficacy.

Half-life~1–2 minutes (endogenous; rapidly cleaved by enkephalinases — aminopeptidase N and neutral endopeptidase/neprilysin)
Mol Weight573.7 Da

Preliminary research strength

Somatropin (HGH)

Somatropin — Recombinant Human Growth Hormone (rhGH)

Growth HormoneStrong Human Evidence

Recombinant human growth hormone used in multiple FDA-approved products for growth hormone deficiency and other product-specific indications. It is one of the best-established therapeutic proteins in the growth hormone/IGF-1 field.

Half-lifeProduct- and route-specific; IV Norditropin terminal half-life is about 21 minutes, while subcutaneous administration produces a longer apparent half-life because of slower absorption from the injection site.
Mol Weight22,124 Da

Strong research strength

Leuprolide

Leuprolide Acetate (Lupron) — GnRH Agonist

Growth HormoneStrong Human Evidence

A GnRH agonist represented through the current Lupron Depot product label; formulations and labeled uses are not interchangeable.

Half-life~3 hours (short-acting solution); Depot formulations provide 1-month, 3-month, 4-month, or 6-month sustained release
Mol Weight1,209.4 Da

Established research strength

Octreotide

Octreotide (Sandostatin) — Somatostatin Analog

Growth HormoneStrong Human Evidence

A long-acting synthetic somatostatin analogue used in FDA-approved treatment of acromegaly and symptomatic hormone excess from carcinoid tumors and VIPomas. It also has extensive research and off-label use across neuroendocrine and gastrointestinal medicine.

Half-life~1.7–1.9 hours after subcutaneous immediate-release administration; long-acting depot formulations provide sustained exposure over a multi-week dosing interval
Mol Weight1,019.3 Da

Strong research strength

hCG

Human Chorionic Gonadotropin (hCG)

Growth HormoneStrong Human Evidence

A placental hormone represented through distinct prescription hCG products used in product-specific reproductive care; it is not an approved weight-loss therapy.

Half-lifeProduct-label pharmacokinetic information differs by formulation; this record does not assign a single half-life to all hCG preparations.
Mol Weight36,700 Da

Established research strength

Degarelix

Degarelix (Firmagon) — GnRH Receptor Antagonist

Growth HormoneStrong Human Evidence

A GnRH antagonist represented by FIRMAGON for advanced prostate cancer; it should not be described as proven cardiovascular-superior to GnRH agonists.

Half-life~23–61 days (depot; sustained release from SC gel depot; concentration-dependent kinetics)
Mol Weight1,632.3 Da

Established research strength

Linaclotide

Linaclotide (Linzess) — Guanylate Cyclase-C Agonist

MetabolicStrong Human Evidence

An FDA-approved oral peptide drug that acts mainly inside the intestine through GC-C/cGMP signaling to increase fluid secretion and bowel transit. It is used for IBS-C in adults and pediatric patients 7 years of age and older, CIC in adults, and functional constipation in pediatric patients 2 years of age and older.

Half-lifeMinimally absorbed after oral administration; linaclotide and its active metabolite are below quantitation limits at recommended doses, so conventional systemic PK parameters, including half-life, cannot be calculated
Mol Weight1,526.8 Da

Established research strength

Teduglutide

Teduglutide (Gattex/Revestive) — GLP-2 Analog

MetabolicStrong Human Evidence

An FDA-approved GLP-2 analog for adults and pediatric patients 1 year of age and older with short bowel syndrome who are dependent on parenteral support. It promotes intestinal adaptation and absorption and can reduce parenteral-support requirements.

Half-lifeAfter subcutaneous dosing, teduglutide has a mean terminal half-life of approximately 1.3 hours in SBS subjects and approximately 2 hours in healthy subjects.
Mol Weight3,751.9 Da

Strong research strength

Secretin

Secretin (ChiRhoStim) — Synthetic Human Secretin for Diagnostic Use

MetabolicStrong Human Evidence

A 27-amino-acid intestinal hormone used clinically as synthetic human secretin (ChiRhoStim) for diagnostic procedures involving pancreatic secretion, gastrin secretion, and ERCP. Controlled clinical trials did not demonstrate efficacy for autism.

Half-lifeIn a ChiRhoStim pharmacokinetic study of 12 healthy subjects given a 0.4 mcg/kg IV bolus, synthetic human secretin had a labeled elimination half-life of approximately 45 minutes; this is product- and study-context specific.
Mol Weight3,039.4 Da

Established research strength

GLP-2 (Native)

Glucagon-Like Peptide-2 (GLP-2) — Native Intestinotrophic Hormone

MetabolicModerate Evidence

The naturally produced intestinal hormone that provided the biological basis for the approved drug Teduglutide. Small human studies show native GLP-2 can increase intestinal blood flow and, in a small short bowel syndrome cohort, reduce fecal losses — informative early findings, not evidence of an approved or broadly proven therapy.

Half-life~7 minutes (endogenous; DPP-4 rapidly cleaves His1-Ala2 to inactivate; teduglutide's Ala2→Gly2 change prevents this)
Mol Weight3,763.2 Da

Moderate research strength

ANP

Atrial Natriuretic Peptide (ANP 99-126 / α-ANP / Carperitide)

MetabolicStrong Human Evidence

A 28-amino-acid cardiac hormone, discovered in a 1981 rat experiment, released by heart muscle cells in response to elevated pressure and volume. A recombinant human-ANP drug product (carperitide) has been studied in a registered human clinical trial for heart failure.

Half-life~1–3 minutes (IV; rapidly cleared by neprilysin and ANP-specific clearance receptors)
Mol Weight3,080.5 Da

Established research strength

BNP (Nesiritide)

Brain Natriuretic Peptide (BNP-32) / Nesiritide (Natrecor)

MetabolicStrong Human Evidence

A cardiac hormone released by the ventricles under stress, and the basis for a widely used heart-failure biomarker. Its recombinant drug form, nesiritide (Natrecor), was FDA-approved in 2001 for acute heart failure but is now discontinued after a large outcomes trial found no mortality/rehospitalization benefit.

Half-life~20 minutes (IV infusion; cleared by natriuretic peptide clearance receptors and neprilysin)
Mol Weight3,464 Da

Established research strength

Angiotensin II

Angiotensin II (Giapreza) — Vasoconstrictive Octapeptide

MetabolicStrong Human Evidence

The primary bioactive hormone of the renin-angiotensin system, responsible for blood vessel constriction and blood pressure maintenance. Recently FDA-approved as Giapreza for vasodilatory shock, and the central molecular target around which ACE inhibitors and ARBs — two of the most widely prescribed drug classes in medicine — were designed.

Half-life~30 seconds to 1 minute (plasma; rapidly cleaved by angiotensinases — aminopeptidase A, ACE2, neutral endopeptidase)
Mol Weight1,046.2 Da

Strong research strength

Teriparatide

Teriparatide (Forteo) — Recombinant PTH 1-34

Bone & MusculoskeletalStrong Human Evidence

An FDA-approved 34-amino-acid fragment of human parathyroid hormone used as an anabolic, bone-building therapy for osteoporosis in people at high fracture risk.

Half-life~1 hour (SC)
Mol Weight4,117.8 Da

Strong research strength

Calcitonin

Calcitonin Salmon (Miacalcin / Fortical) — Antiresorptive Peptide Hormone

Anti-agingStrong Human Evidence

A 32-amino-acid peptide hormone that reduces osteoclast activity and lowers serum calcium. Calcitonin salmon remains FDA-approved for selected bone and calcium disorders, but its role in osteoporosis is now limited and current labeling states that fracture-reduction efficacy has not been demonstrated.

Half-lifeFormulation-specific: ~18 minutes terminal half-life intranasally; ~58 minutes IM and ~59–64 minutes SC
Mol Weight3,431.9 Da

Established research strength

Abaloparatide

Abaloparatide (Tymlos) — PTHrP-Based Anabolic Peptide

OsteoporosisStrong Human Evidence

An FDA-approved synthetic 34-amino-acid PTHrP analogue used as TYMLOS for osteoporosis in eligible postmenopausal women and men. Strong evidence is specific to labeled osteoporosis use, not anti-aging.

Half-lifeApproximately 1 hour mean half-life after subcutaneous administration of TYMLOS/abaloparatide (product-specific TYMLOS label PK).
Mol Weight3,961.7 Da

Strong research strength

Afamelanotide

Afamelanotide (Scenesse) — MC1R Agonist

MelanocortinStrong Human Evidence

A 16 mg controlled-release SCENESSE implant for adults with EPP and phototoxic reactions. It is inserted above the anterior supra-iliac crest every 2 months to increase pain-free light exposure; it is not a tanning treatment.

Half-life~15 hours apparent half-life for afamelanotide delivered by the controlled-release SCENESSE subcutaneous implant
Mol Weight1,646.9 Da

Strong research strength

Desmopressin

Desmopressin (DDAVP) — Synthetic V2-Selective Vasopressin Analog

Nootropic & CNSStrong Human Evidence

A synthetic vasopressin analogue used in several FDA-approved formulations for conditions including central diabetes insipidus, selected bleeding disorders, primary nocturnal enuresis, and nocturia due to nocturnal polyuria. Approved uses and safety differ by formulation.

Half-life~2.8 hours terminal half-life in adults with normal renal function; pharmacokinetics vary with formulation and renal function
Mol Weight1,069.2 Da

Established research strength

Substance P

Substance P — Tachykinin Neuropeptide

Nootropic & CNSModerate Evidence

An 11-amino-acid, C-terminally amidated neuropeptide central to pain-signaling research. Direct human studies show it can induce headache/vascular effects and skin inflammation when administered; NK1 receptor antagonists that block its signaling are FDA-approved for chemotherapy-induced nausea, though not for pain.

Half-life~1–2 minutes (plasma; rapidly inactivated by neutral endopeptidase/neprilysin, ACE, and aminopeptidase N; tissue half-life longer)
Mol Weight1,347.6 Da

Established research strength

β-Endorphin

Beta-Endorphin (β-Endorphin) — Endogenous Opioid

Endogenous physiologyPreliminary / Experimental

An endogenous 31-amino-acid POMC-derived opioid peptide studied in physiology and signaling research. Endogenous biology is not evidence that administered beta-endorphin is an established therapy or nootropic.

Mol Weight3,465 Da

Preliminary research strength

Ziconotide

Ziconotide (Prialt) — ω-Conotoxin MVIIA / N-Type Calcium Channel Blocker

Pain therapeuticsStrong Human Evidence

An FDA-approved intrathecal-only ziconotide product for severe chronic pain when other treatment is inadequate or not tolerated. Current PRIALT dosing starts at no more than 2.4 mcg/day and has a recommended maximum of 19.2 mcg/day.

Half-lifeApproximately 4.6 hours terminal half-life in cerebrospinal fluid after intrathecal administration; serum PK is distinct.
Mol Weight2,639.1 Da

Strong research strength

Icatibant

Icatibant (Firazyr) — Bradykinin B2 Receptor Antagonist

Immune & AntimicrobialStrong Human Evidence

An FDA-approved synthetic peptide that selectively blocks bradykinin B2 receptors to treat acute hereditary angioedema attacks in U.S. adults 18 years of age and older. It blocks bradykinin-mediated swelling; laryngeal attacks still require immediate medical evaluation.

Half-lifeMean elimination half-life is approximately 1.4 hours after a 30 mg subcutaneous dose
Mol Weight1,304.6 Da

Strong research strength

Bradykinin

Bradykinin (BK-9) — Endogenous Vasoactive Kinin

Immune & AntimicrobialModerate Evidence

An endogenous nonapeptide in the kallikrein-kinin system that helps explain vascular regulation, vascular permeability, pain and inflammatory signaling, hereditary angioedema, and ACE-inhibitor pharmacology. Human evidence supports B2-receptor involvement in bradykinin-induced vasodilation.

Half-lifeApproximately 27 ± 10 seconds for exogenous bradykinin in serum from 116 healthy individuals under the studied human conditions; ACE inhibition potentiated measured bradykinin exposure approximately 9-fold. Bradykinin is rapidly degraded, and this study-specific degradation half-life is not a universal fixed duration of biological effects.
Mol Weight1,060.2 Da

Established research strength

Insulin (Regular Human)

Insulin — Recombinant Human Insulin (Regular, rDNA Origin)

MetabolicStrong Human Evidence

Recombinant regular human insulin is an established medical therapy for diabetes. This record uses HUMULIN R U-100 as a product anchor, keeps it distinct from insulin analogues, and emphasizes individualized dosing and glucose monitoring.

Mol Weight5,808 Da

Strong research strength

NAD+

Nicotinamide Adenine Dinucleotide

Direct NAD+ administration researchPreliminary / Experimental

Oxidized NAD+ studied mainly through direct IV disposition and short-term tolerability research. Direct human evidence exists, but therapeutic effectiveness and wellness or longevity benefits remain limited and uncertain.

Mol Weight663.43 Da

Preliminary research strength

NMN

Nicotinamide Mononucleotide

Longevity CompoundsPreliminary / Experimental

An NAD+ precursor with a small, population-specific human study and separate animal research; broad health and longevity benefits are unestablished.

Half-lifeA general human pharmacokinetic half-life is not established by the selected sources.
Mol Weight334.22 Da

Preliminary research strength

NR

Nicotinamide Riboside

Longevity CompoundsPreliminary / Experimental

An NAD+ precursor with human biomarker and tolerability research; clinical benefits for aging or disease are unestablished.

Half-lifeThe selected human studies describe exposure and NAD-related biomarkers; this record does not assign a universal half-life.
Mol Weight255.23 Da

Preliminary research strength

Creatine

Creatine Monohydrate

Longevity CompoundsStrong Human Evidence

Creatine monohydrate has exercise-context evidence and a separate narrow older-adult cognition study; it is not established as a longevity intervention.

Half-lifeA universal human pharmacokinetic half-life is not established by the selected sources.
Mol Weight149.15 Da

Established research strength

Metformin

Metformin Hydrochloride

Metabolic medicine and longevity researchStrong Human Evidence

An established prescription medicine for type 2 diabetes with separate, investigational aging research. Observational mortality associations and aging-biology studies do not prove human lifespan extension.

Mol Weight165.62 Da

Strong research strength

Rapamycin

Sirolimus

Transplantation and rare disease medicineStrong Human Evidence

Sirolimus (rapamycin) is an established prescription medicine with product-specific transplant and rare-disease uses. Mouse lifespan findings are preclinical; human longevity benefit and a longevity dose remain unestablished.

Half-lifeApproximately 57–63 hours mean terminal half-life for oral sirolimus; product- and population-specific label pharmacokinetics.
Mol Weight914.17 Da

Strong research strength

Spermidine

Spermidine

Longevity CompoundsPreliminary / Experimental

A dietary and endogenous polyamine with separate preclinical, animal, and human dietary-observational evidence; supplemental longevity benefit is unestablished.

Half-lifeA general supplemental-spermidine human half-life is not established by the selected sources.
Mol Weight145.25 Da

Preliminary research strength

Urolithin A

Urolithin A

Longevity researchModerate Evidence

A gut-microbiota-derived metabolite and administered postbiotic studied for mitophagy and muscle-related biology. Human intervention evidence exists, but preclinical lifespan findings and short-term human outcomes do not establish human longevity benefit.

Mol Weight228.2 Da

Moderate research strength

Fisetin

Fisetin (3,3',4',7-Tetrahydroxyflavone)

Longevity CompoundsPreliminary / Experimental

A flavonoid with preclinical fisetin senolytic evidence and registered human research without posted results. Human therapeutic efficacy, long-term safety, and a standardized dose remain unestablished.

Half-lifeHuman elimination half-life is not established in the sources represented by this record.
Mol Weight286.24 Da

Preliminary research strength

Quercetin

Quercetin (3,3',4',5,7-Pentahydroxyflavone)

Longevity CompoundsPreliminary / Experimental

Parent flavonol with preliminary longevity evidence. The most relevant cited senolytic-oriented human pilot tested dasatinib plus quercetin, not quercetin alone.

Mol Weight302.24 Da

Preliminary research strength

Alpha-Ketoglutarate

Alpha-Ketoglutarate (AKG; umbrella record)

Longevity CompoundsPreliminary / Experimental

Endogenous Krebs-cycle metabolite. The cited longevity study used Ca-AKG in mice; no human lifespan extension has been established.

Mol Weight146.1 Da

Preliminary research strength

Berberine

Berberine (commonly studied as berberine hydrochloride)

Longevity CompoundsPreliminary / Experimental

Plant alkaloid with limited human metabolic research; the evidence is not proof of clinical equivalence to metformin or of longevity efficacy.

Mol Weight336.37 Da

Moderate research strength

Resveratrol

Resveratrol (trans-Resveratrol)

Longevity CompoundsPreliminary / Experimental

Purified trans-resveratrol has limited short-term human metabolic research; it has not been shown to extend human lifespan.

Mol Weight228.25 Da

Preliminary research strength

AHK-Cu

Alanyl-Histidyl-Lysine Copper Complex

Anti-agingPreliminary / Experimental

A synthetic tripeptide-copper complex structurally related to GHK-Cu, differing by a single amino acid (alanine replacing glycine). Studied in cosmeceutical research for collagen synthesis, skin remodeling, and hair follicle biology, with a more limited evidence base than GHK-Cu.

Half-life~1–2 hours (estimated; limited in vivo pharmacokinetic data)
Mol Weight418 Da

Preliminary research strength

Leptin

Leptin (Ob Protein) — Adipose-Derived Satiety Hormone

MetabolicStrong Human Evidence

An endogenous metabolic hormone from adipose tissue that signals energy stores to the brain; metreleptin (MYALEPT) is its recombinant replacement therapy for complications of leptin deficiency in generalized lipodystrophy.

Half-life~25 minutes (IV, endogenous); ~3–4 hours (SC, metreleptin)
Mol Weight16,000 Da

Strong research strength

Relaxin

Relaxin-2 (Human Relaxin-2 / Serelaxin)

Healing & RecoveryModerate Evidence

A two-chain insulin-superfamily peptide hormone that remodels connective tissue, reduces fibrosis, and dilates blood vessels. Studied in acute heart failure (Phase III trial failed primary endpoint), renal protection, and anti-fibrotic applications. Produced naturally in pregnancy.

Half-life~10 minutes (IV); ~2 hours (SC, estimated based on pharmacokinetic modeling)
Mol Weight6,153 Da

Moderate research strength

Neuropeptide Y

Neuropeptide Y (NPY)

Nootropic & CNSPreliminary / Experimental

One of the most abundant neuropeptides in the brain, regulating appetite, stress resilience, anxiety, sleep, and cardiovascular tone. Strong preclinical evidence base; limited human data. Research interest highest in PTSD, stress resilience, and anxiety modulation.

Half-life~10 minutes (IV); rapidly inactivated by DPP-IV and neutral endopeptidase (NEP); substantially shorter than most research peptides
Mol Weight4,271.8 Da

Preliminary research strength

BI 3034701

BI 3034701

MetabolicModerate Evidence

An experimental GLP-1/GIP/Y2 triple agonist being studied for obesity. Early human testing has been completed, and a Phase 2 weight-loss study is underway. It is not FDA approved.

Moderate research strength

FLGR-242

FLGR242

Muscle & PerformancePreliminary / Experimental

An emerging follistatin-associated research construct with very limited compound-specific evidence. Related albumin-binding peptide technology is documented, but FLGR-242 itself does not yet have published human efficacy, safety, or pharmacokinetic data.

Preliminary research strength