Dsip 5mg

Delta Sleep-Inducing Peptide (DSIP) is a naturally occurring neuropeptide composed of nine amino acids (Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu) first isolated in 1977 from rabbit cerebral venous blood. It is primarily studied for its role in promoting slow-wave sleep (SWS), enhancing sleep quality, and regulating circadian rhythms. DSIP has also been linked to stress modulation, hormonal regulation (e.g., luteinizing hormone, cortisol), neuroprotection, and potential anti-aging and anticarcinogenic effects.

DSIPs natural gene, receptor, and precursor protein remain unidentified, and its exact biological mechanisms are still unresolved. It is found in the hypothalamus, pituitary, brain, gut, and peripheral tissues, and can cross the blood-brain barrier. DSIP-like material has been detected in human breast milk and is correlated with circadian rhythm patterns—levels rise in the afternoon and fall in the morning. 

Research Use Only: DSIP is available from suppliers like Phoenix Pharmaceuticals, Peptide Works, and Ameano Peptides as a research-grade compound, not approved for human consumption.  It is used in preclinical studies to explore sleep architecture, stress response, recovery, and neuromodulation.