Sleep research neuropeptide
DSIP.
5 vendors · $25–49
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
5 listings · unflagged vendors first · Listings data last updated October 2026
Best price per mg: Direct Peptides 10 mg at $4.90/mg.
2 mg
1 listing5 mg
3 listings01
Peptide ProsVID-PEPTIDE- · US dispatch · sale price
5 mg
99%
No certificate for this compound in the vendor COA library (checked 2026-10-30); purity is the listing figure
In stock
Same-day dispatch
$8.00/mg
$40
02
Core PeptidesVID-CORE-PEP · US dispatch
5 mg
99.14%
HPLC-UV/VIS identity + purity · Vanguard Laboratory, lot C74122, reported 2026-07-22, 99.14% · no mass-spec identity or endotoxin resultVanguard Laboratory · HPLC-UV/VIS · Batch C74122 · Jul 22, 2026 · Verify COA ↗
In stock
Same-day dispatch
$8.20/mg
$41
03
Hydro ResearchVID-HYDRO-RE · US dispatch · list $55 · lot content 4.92–5.33 mg/5 mg · report dated Apr 2025
5 mg
99.86%
HPLC + endotoxin + heavy metals + sterility (Janoshik, lot DS-Z29TRQ, Apr 2025)
In stock
Same/next-business-day dispatch · FedEx 2-Day
$9.00/mg
$45
10 mg
1 listing01
Direct PeptidesVID-DIRECT-P · US dispatch · single vial
10 mg
99.41%
UPLC-MS + endotoxin (Horizon Analytical, lot DPS-8838692)
In stock
UPS Ground 2–5 business days (free)
$4.90/mg
$49
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 →