Sleep research neuropeptide
DSIP.
4 vendors · $25–47
Delta sleep-inducing peptide — 9-residue neuropeptide first isolated from cerebral venous blood during low-frequency sleep induction. Researched for sleep–wake cycle mechanisms; not approved for human therapeutic use anywhere.
Live vendor register · grouped by strength
Every vendor. Cheapest per mg first, kits listed separately.
DSIP · price per mg
4 listings · unflagged vendors first · Listings data last updated October 2026
Best price per mg: Particle Peptides 10 mg at $4.70/mg.
2 mg
2 listings02
Pharma Lab GlobalVID-PHARMA-L · UK dispatch · from £21.52
2 mg
99%
HPLC certificates
In stock
10–14 days
$14.50/mg
$29
5 mg
1 listing01
Bangkok PeptidesVID-BANGKOK- · TH dispatch · ฿1200 · 10 mg sold out
5 mg
99%
No Janoshik report for this compound on the vendor testing page (checked 2026-10-31); purity is the listing figure
In stock
TH 1–3 days
$7.20/mg
$36
10 mg
1 listing01
Particle PeptidesVID-PARTICLE · SK dispatch · €40.64 ex-VAT
10 mg
99.8%
Liquilabs (CZ) · batch 20260308, published 2026-03-27 · HPLC · FTIR · microbial counts · endotoxin · elemental impurities · purity 99.8% · no MS identity on this reportLiquilabs · HPLC · FTIR · TAMC/TYMC · LAL · Elemental impurities · Batch 20260308 · Mar 27, 2026
In stock
DHL Express 2–3 days to Singapore (€41) · 3–4 days to Indonesia (€50)
$4.70/mg
$47
Same research area
Similar compounds.
Long-form research guide
Sleep Enhancement Research. Mechanism + protocols + safety.
Slow-wave sleep modulation and stress-induced insomnia in EEG models
Open the long-form guide for DSIP →