Neuropeptide S vs DSIP
Head-to-head comparison of Neuropeptide S (Neuropeptide S) and DSIP (Delta Sleep-Inducing Peptide) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | Neuropeptide S | DSIP |
|---|---|---|
| Category | Cognitive Enhancement | Performance |
| Full Name | Neuropeptide S | Delta Sleep-Inducing Peptide |
| Molecular Weight | 2203 Da | 848.8 Da |
| Half-Life | Minutes to <1 hour | ~15-25 minutes |
| Amino Acids | 20 | 9 |
| Typical Dose | Research-only; no validated human dose | 100-200 mcg |
| Route | Intracerebroventricular/Intranasal | SC / IV / Intranasal |
| Purity | ≥98% | — |
| Studies Count | 28 | 74 |
| Research Status | Pre-clinical | Pre-clinical |
Neuropeptide S Benefits
- ✓anxiolysis
- ✓stress resilience
- ✓attention support
- ✓arousal modulation
DSIP Benefits
- ✓Promotes deep delta wave sleep
- ✓Normalizes disrupted sleep patterns
- ✓Reduces cortisol and stress response
- ✓Pain modulating effects
- ✓Antioxidant properties
Neuropeptide S Dosing
0.1-1 nmol i.c.v. in animal studies|intranasal research-only exploration|no established human protocol
DSIP Dosing
Standard: 100-200 mcg SC or IV, 30-60 min before bed|Cycle: 10-14 days, 5-7 days off|Chronic insomnia: 100 mcg daily for 2-3 weeks|Can be combined with Ipamorelin pre-bed
Neuropeptide S Side Effects
- ⚠sleep disruption
- ⚠headache
- ⚠jitteriness
DSIP Side Effects
- ⚠Common (Mild): Morning grogginess initially, mild headache
- ⚠Rare: Vivid dreams, temporary appetite changes
- ⚠Generally very well tolerated
Research Overview
Neuropeptide S
Animal studies suggest NPS can reduce anxiety-like behavior while altering wakefulness and alertness through the NPS receptor system. Human cognitive data are very limited, and it has no approved clinical indication.
DSIP
DSIP has moderate clinical evidence from European studies. Human trials show improved sleep quality and normalized sleep-wake cycles. Also studied for alcohol and opiate withdrawal. Unique mechanism distinct from traditional sleep aids.
Ready to buy?
Find both peptides from our verified, lab-tested vendors with purity certificates and third-party testing.