Nootropic peptide
Semax.
7 vendors · €24–64
ACTH(4-10) analog. Investigated for cognitive and neuroprotective effects.
Live vendor register · grouped by strength
Every vendor. Cheapest per mg first, kits listed separately.
SEMAX · price per mg
7 listings · unflagged vendors first · Listings data last updated October 2026
Best price per mg: SwissChems 30 mg at €2.13/mg.
5 mg
1 listing01
Direct Peptides EUVID-DIRECT-P · UK network · from £20.99
5 mg
99%
HPLC badge only (no reports published)
In stock
10–14 days
€4.80/mg
€24
10 mg
4 listings01
PepsupVID-PEPSUP · NL dispatch · €24.99
10 mg
99%
No COA published (mfr claim 99%+)
Low stock
NL 1–2 d · EU 2–5 d
€2.50/mg
€25
02
Particle PeptidesVID-PARTICLE · SK dispatch
10 mg
99.8%
Liquilabs (CZ) · batch 2026345, published 2026-09-20 · HPLC · FTIR · MS identity · microbial counts · endotoxin · elemental impurities · purity 99.8%Liquilabs · HPLC · FTIR · MS · TAMC/TYMC · LAL · Elemental impurities · Batch 2026345 · Sep 20, 2026
In stock
2–7 days
€3.30/mg
€33
03
Adria ScienceVID-ADRIA-SC · SI/CZ dispatch
10 mg
99.6%
Liquilabs per-lot COA
Low stock
Dispatch 1–3 days
€4.50/mg
€45
04
PEAK_PEPTIDEVID-PEAK-PEP · AT dispatch
10 mg
99.7%
Liquilabs per-batch COA · ICP-MS
In stock
Dispatch 24–48 h
€5.00/mg
€50
30 mg
1 listing01
SwissChemsVID-SWISSCHE · US dispatch · from $73.95
30 mg
99%
HPLC · third-party COA
In stock
2–3 weeks
€2.13/mg
€64
Flagged vendors · documented, never recommended
01
CertaPeptidesVID-CERTAPEP · RO dispatch
5 mg
98%
Janoshik (selected lots)
In stock
3–7 days
€6.00/mg
€30
Same research area
Similar compounds.
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 Semax →