In plain English
DSIP is a nine-amino-acid peptide first found in the blood of sleeping rabbits. It is named for its link to delta sleep, the deepest and most restorative stage of sleep. People use it to fall asleep more easily, sleep more deeply and recover from stress.
What it's used for
- Falling asleep and staying asleep
- Deeper, more restorative sleep
- Stress recovery
- Support during withdrawal from alcohol or opioids (being explored)
Benefits
DSIP has been studied in animal and small human studies. These have shown:
- More deep (delta) sleep and better sleep patterns in some people with insomnia
- Reduced withdrawal symptoms from alcohol and opioids in small clinical studies
- Lower stress hormone responses in animal studies
Users report falling asleep faster, sleeping more deeply and waking more refreshed, though experiences vary more than with most peptides.
How it works
In simple terms: DSIP seems to nudge the brain toward deep sleep and away from stress.
How it works is still not fully understood. Studies link it to effects on GABA and glutamate signalling, the body’s opioid system, and the stress hormone axis, as well as to the release of other hormones during sleep. It does not act like a sedative, so it supports natural sleep rather than knocking you out.
Development history
- 1977: Isolated by Swiss researchers from the blood of rabbits in deep sleep.
- 1980s: Small human studies explore insomnia and withdrawal.
- Today: A popular sleep peptide, often combined with growth hormone peptides at night.
Typical protocols
These ranges are what users commonly report.
| Use | Dose | Timing | Length |
|---|---|---|---|
| Sleep support | 100–300 mcg | 30–60 minutes before bed | 1–2 weeks, or a few nights a week |
| Higher range | Up to 500 mcg | Before bed | Short courses |
Cycling
Usually used in short courses or a few nights a week rather than every night long term.
Administration options
- Subcutaneous injection: most common.
- Nasal spray: also used.
Reconstitution and dosing calculator
DSIP usually comes in 2 mg or 5 mg vials and is commonly mixed with 2 mL of bacteriostatic water.
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This tool does arithmetic only. It does not choose a dose or confirm that any substance is right for you. Double-check every result against your syringe and your clinician’s instructions.
Side effects and safety
- Users report that DSIP is generally well tolerated. Occasional effects include headache, grogginess the next morning, vivid dreams and injection-site redness.
- Long-term effects have not been well studied.
- Avoid during pregnancy and breastfeeding.
Common stacks
- CJC-1295 and ipamorelin: taken at bedtime together for deeper sleep and growth hormone release.
- Selank: combined by some users for calm and sleep.
Storage
Powder: refrigerate, dry and away from light.
After mixing: refrigerate at 2–8 °C and use within about 3–4 weeks.
Compare with
- Epitalon: supports sleep through melatonin and the body clock.
- Ipamorelin and CJC-1295: improve sleep quality indirectly through growth hormone.
Frequently asked questions
Is DSIP a sedative?
No. It is thought to support natural deep sleep rather than sedate you.
Does it work for everyone?
Responses vary more than with most peptides. Some users notice a clear effect, others very little.
When should it be taken?
Users typically inject 30–60 minutes before bed.
References
- Schoenenberger GA, Monnier M. Characterization of a delta-electroencephalogram (-sleep)-inducing peptide. Proc Natl Acad Sci USA. 1977;74(3):1282-1286.
- Kovalzon VM, Strekalova TV. Delta sleep-inducing peptide (DSIP): a still unresolved riddle. J Neurochem. 2006;97(2):303-309.