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All editions →MethodologyUpdated · November 2026
Nootropic peptide

Semax.
4 vendors · $21–74

ACTH(4-10) analog. Investigated for cognitive and neuroprotective effects.

Approved-analogue classLyophilised vialAlso known as:ACTH(4-10) analogue
Live vendor register · grouped by strength

Every vendor. Cheapest per mg first, kits listed separately.

SEMAX · price per mg
4 listings · unflagged vendors first · Listings data last updated October 2026

Best price per mg: SwissChems 30 mg at $2.47/mg.

2 mg

1 listing
01
Pharma Lab GlobalVID-PHARMA-L · UK dispatch · from £15.59
2 mg
99%
HPLC certificates
In stock
10–14 days
$10.50/mg
$21

10 mg

2 listings
01
Bangkok PeptidesVID-BANGKOK- · TH dispatch · ฿1200
10 mg
99.985%
Janoshik HPLC (identity, amount, purity; no mass spec) · task #235779, batch BP-XA10-1026, analysed 2026-09-24 · the report identifies N-acetyl Semax AmidateJanoshik · HPLC · Batch BP-XA10-1026 · Sep 24, 2026
In stock
TH 1–3 days
$3.60/mg
$36
02
Particle PeptidesVID-PARTICLE · SK dispatch · €32.51 ex-VAT
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
DHL Express 2–3 days to Singapore (€41) · 3–4 days to Indonesia (€50)
$3.80/mg
$38

30 mg

1 listing
01
SwissChemsVID-SWISSCHE · US dispatch
30 mg
99%
HPLC · third-party COA
In stock
2–3 weeks
$2.47/mg
$74
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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 →