DSIP
Also known as Delta sleep inducing peptide
Nonapeptide sleep modulator
A nonapeptide studied for slow wave sleep architecture, stress hormone modulation and pain thresholds.
How it works
Proposed to act on delta wave generating circuits and to modulate corticotropin and somatotropin release, though its exact receptor has not been definitively identified.
What research has shown
Sleep laboratory studies report increased delta sleep and reduced sleep latency in some cohorts, with inconsistent results across replications.
Reported ranges in the literature
Low end
50 mcg before sleep
Optimal
100 to 250 mcg before sleep
High end
500 mcg in reported protocols
Frequency reported in the literature: Evening, in short blocks
Protocol duration and pairing
Typical study duration
2 to 8 weeks in sleep architecture studies.
Research use only
All content on this page is general reference information for laboratory research contexts. It is not medical advice, is not intended to direct human use, and does not replace guidance from a licensed healthcare professional. Not for human consumption. Must be 18+.