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All editionsMethodologyUpdated · September 2026
Sleep research neuropeptide

DSIP.
4 vendors · $1941

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 · sorted by price

Every vendor. Same compound, sorted ascending.

DSIP · price-normalised
n = 4 vendors
01
QSC Peptides
VID-QSC-PEPT
HPLC · MS · Janoshik
99%
3–7 days · Kit of 10 · US warehouse
$19
02
SwissChems
VID-SWISSCHE
HPLC · third-party COA
99%
3–5 days · US dispatch
$25
03
Peptide Pros
VID-PEPTIDE-
COA library (method unstated)
99%
Same-day dispatch · US dispatch · sale price
$40
04
Core Peptides
VID-CORE-PEP
Per-product COA (method unstated)
99%
Same-day dispatch · US dispatch
$41
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 →