DSIP

Delta Sleep-Inducing Peptide

Evidence & Status

  • Preliminary / Experimental
  • Preliminary

At a Glance

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.

Plain English

Researchers study DSIP (Delta Sleep-Inducing Peptide) because it was originally identified as a factor that appeared to promote deep, slow-wave sleep in animal experiments. Scientists have investigated its potential connections to sleep regulation, hypothalamic-pituitary-adrenal axis function, and opioid withdrawal, though results from human studies have been mixed and the compound's precise mechanisms remain incompletely understood. It is one of the more scientifically debated entries in the database, with an interesting discovery history but limited high-quality human evidence.

Overview

DSIP is a synthetic nonapeptide studied in foundational characterization work and in limited experimental human and animal research. The verified literature in this record concerns sleep-related biology, withdrawal symptoms, and pituitary hormone responses; it does not establish generalized sleep normalization, absence of tolerance, broad antioxidant or pain benefits, or current regulatory approval.

Research Summary

DSIP remains preliminary. Verified sources include foundational characterization and limited human reports involving withdrawal symptoms and ACTH/vasopressin responses, but the available evidence is heterogeneous and does not establish generalized sleep normalization, absence of tolerance, broad wellness effects, or current Deltaran regulatory approval.

Research Areas

  • Foundational sleep-related biology
  • Historical human withdrawal and pituitary hormone-response research

Safety & Risks

Serious Risks

  • Limited historical human studies do not establish a general human safety profile or long-term safety.
United States
Research only
United Kingdom
Current authorization status not established in this record
Australia
Current authorization status not established in this record
Canada
Current authorization status not established in this record

Citations & Sources