Sleep research neuropeptide
DSIP.
4 vendors · ¥3861–7309
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 ¥731/mg.
2 mg
2 listings01
SwissChemsVID-SWISSCHE · US dispatch · from $24.95
2 mg
99%
HPLC · third-party COA
In stock
2–3 weeks
¥1,931/mg
¥3,861
02
2 mg
99%
HPLC certificates
In stock
10–14 days
¥2,253/mg
¥4,506
10 mg
1 listing01
Particle PeptidesVID-PARTICLE · SK dispatch · €40.64 ex-VAT
10 mg
99%
COA PDF (method unstated)
In stock
DHL Express 2–3 days (€50) · Slovak Post 5–7 days (€45)
¥731/mg
¥7,309
Flagged vendors · documented, never recommended
01
QSC PeptidesVID-QSC-PEPT · Kit of 10 · from $190 USD
2 mgkit of 10
99%
HPLC · MS · Janoshik
In stock
7–14 days
¥1,470/mg
¥2,940≈ ¥29,400 per kit
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 →