DSIP
Delta Sleep-Inducing Peptide
Nonapeptide studied for sleep architecture.
A nonapeptide isolated from cerebral venous blood in the 1970s. Anecdotally used for sleep onset and reducing nighttime cortisol. Results are highly individual.
Usual range
100–300 mcg
Schedule
Nightly, 30–60 min before bed
Half-life
Minutes in plasma; CNS effect may last the night
How it is used
Nonapeptide studied for sleep architecture.
Subcutaneous
Lights-down. Dark room, no screens.
7–14 nights, then reassess tolerance.
How to mix this vial
Typical vial 5 mg · 2 mL BAC
5 mg + 2 mL → 2.5 mg/mL. 100 mcg = 4 units.
Fridge. Sensitive peptide — keep cold.
Side effects
- Vivid dreams
- Morning grogginess
- Paradoxical alertness
Who should skip this
- Narcolepsy (relative)
- Pregnancy
Nutrition note
No heavy meal within 2 hours of bed. Magnesium glycinate is a reasonable non-peptide adjunct.
Stacks
Often paired with
Human evidence is old and mixed. Sleep hygiene still dominates.
Peptipedia is an educational calculator, not medical advice. Many catalog entries are unapproved for human use. Approved molecules have labels that outrank this app. Do not use this to self-prescribe. Consult a licensed clinician. Not for anyone under 18, pregnant, or being treated for cancer.