Nootropic peptide
Selank.
7 vendors · $26–89
Russian heptapeptide derived from tuftsin. Anxiolytic/nootropic research.
Live vendor register · grouped by strength
Every vendor. Cheapest per mg first, kits listed separately.
SELANK · price per mg
7 listings · unflagged vendors first · Listings data last updated October 2026
Best price per mg: Pepsup 10 mg at $2.90/mg.
5 mg
2 listings02
Hydro ResearchVID-HYDRO-RE · US dispatch · lot content 7.23 mg/5 mg
5 mg
99.04%
HPLC (Janoshik, lot HYDROH2P9X6D, Nov 2025) · sterility
In stock
Same/next-business-day dispatch · FedEx 2-Day
$7.00/mg
$35
10 mg
5 listings01
PepsupVID-PEPSUP · €24.99 · duties on delivery
10 mg
99%
No COA published (mfr claim 99%+)
In stock
NL dispatch · PostNL Tracked 2–5 business days
$2.90/mg
$29
02
Purple PeptidesVID-PURPLE-P · US dispatch · legacy report #12196, no lot
10 mg
99.21%
BioRegen LC-MS legacy report (no lot #)
In stock
Same-day dispatch (before 12 PM PST) · USPS 2–4 days
$3.90/mg
$39
03
Core PeptidesVID-CORE-PEP · US dispatch
10 mg
99%
No certificate on the product page (vendor-wide claim: every batch HPLC-tested by Vanguard Laboratory, average purity above 99%)
In stock
Same-day dispatch
$5.20/mg
$52
04
Direct PeptidesVID-DIRECT-P · US dispatch · single vial
10 mg
99.61%
UPLC-MS + endotoxin (Horizon Analytical, lot DPS-7972709)
In stock
UPS Ground 2–5 business days (free)
$8.90/mg
$89
Same research area
Similar compounds.
Nootropic peptide
Semax
ACTH(4-10) analog. Investigated for cognitive and neuroprotective effects.
7 vendors$29–89
Sleep research neuropeptide
DSIP
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.
5 vendors$25–49
Long-form research guide
Cognitive Enhancement Research. Mechanism + protocols + safety.
BDNF, neuroplasticity, and anxiolytic mechanisms in nootropic peptide research
Open the long-form guide for Selank →