⚠ Research and educational use only — not for human consumption. Nothing for sale, no dosing advice. PeptideCompare is non-profit and independent.
Database Suppliers Quality & badges Supplier reviews Encyclopedia Articles Calculator
LONGEVITY TOPICS
NAD+ Precursors Sirtuin Activators Senolytics Autophagy Mitochondrial Hormesis
About FAQ Contact Policy
NOOTROPIC / BDNF / FOCUS

Semax

ACTH fragment, BDNF upregulation

Half-life: Short 22 suppliers · Widely stocked 26 price rows Read the encyclopedia guide →
LIMITED Russian studies
CognitionNeuroprotectionFocus
Available strengths
5/10/30/40mg
32 of 32 rows in stock
How to use it: compare suppliers below side by side on price and whether a COA is on file — those two checks are the fastest way to spot a good deal. All COAs can be verified directly on each supplier's own website.
Strength 5mg5
#SuppliersPrice€/mgPrice trend (6 months)PurityCOAProduct ⓘ
1
RESRES
€17.99€3.6/mg99.8%✔ HPLC/LC-MSShop →
2
CRYCRY
CRYSTAL PEPTIDES
in stock BG
€24.99€5.0/mg99.7%✔ HPLCShop →
3
CERCER
CERTAPEPTIDES
in stock RO
€32.49€6.5/mg99.3%✔ JanoshikShop →
4
MYPMYP
MY PEPT
in stock LT
€39.49€7.9/mg99%✔ COAShop →
5
CLECLE
CLEAN PEPTIDES
in stock
€39.95€7.99/mg99%✔ HPLCShop →
Strength 10mg23
#SuppliersPrice€/mgPrice trend (6 months)PurityCOAProduct ⓘ
1
HELHEL
HELUS LAB
in stock PL
€24.99€2.5/mg99%— PendingShop →
2
OMEOME
OMEGA PEPTIDES
in stock
€29.99€3/mg2026-02-01: €29.552026-03-03: €28.442026-04-02: €28.282026-05-02: €27.852026-05-25: €27.252026-06-01: €29.99▲1.5%99%✔ Third-partyShop →
3
PULPUL
PULSE PEPTIDES
in stock CY
€29.99€3/mg2026-02-01: €29.252026-03-03: €30.052026-04-02: €30.232026-05-02: €31.312026-05-25: €32.512026-06-01: €29.99▲2.5%99%✔ HPLC/qNMRShop →
4
RESRES
€29.99€3/mg99.8%✔ HPLC/LC-MSShop →
5
PEPPEP
PEPTIDMARKT
in stock DE
€30€3/mg99.7%✔ HPLCShop →
6
PHDPHD
PhD PEPTIDES
in stock EU
€31.45€3.15/mg99%✔ HPLCShop →
7
FITFIT
FIT PEPTIDES
in stock
€34.95€3.5/mg2026-02-01: €33.122026-03-03: €33.652026-04-02: €34.212026-05-02: €35.442026-05-25: €35.452026-06-01: €34.95▲5.5%99%✔ JanoshikShop →
8
PARPAR
PARTICLE PEPTIDES
in stock SK
€39.9999%✔ HPLCProduct VerifiedShop →
9
CERCER
CERTAPEPTIDES
in stock RO
€37.49€3.75/mg99.3%✔ JanoshikShop →
10
RETRET
RetaEU
in stock
€39.95€4/mg99%✔ HPLCProduct VerifiedShop →
11
MYPMYP
MY PEPT
in stock LT
€39.95€4/mg99%✔ COAShop →
12
ADRADR
ADRIA SCIENCE
in stock SI
€42.3€4.23/mg99%✔ HPLCShop →
13
NEXNEX
NEXTGEN PEPTIDES
in stock
€44.95€4.5/mg2026-02-01: €47.242026-03-03: €46.042026-04-02: €45.352026-05-02: €46.252026-05-25: €46.502026-06-01: €44.95▼4.8%99%✔ HPLCShop →
14
LUMLUM
LUMO PEPTIDES
in stock
€44.95€4.5/mg99%✔ Bridge LabsShop →
15
PEPPEP
PEPTIVAE
in stock NL
€44.95€4.5/mg99%— PendingShop →
16
CRYCRY
CRYSTAL PEPTIDES
in stock BG
€44.99€4.5/mg99%✔ HPLCShop →
17
REGREG
€48.99€4.9/mg99%✔ HPLCShop →
18
PEAKPEAK
PEAK PEPTIDE
in stock HR
€49.90€4.99/mg99%✔ LiquilabsShop →
19
PEPPEP
PEPTA SUPPLY
in stock
€49.99€5/mg99%✔ HPLCShop →
20
BEYBEY
BEYOND PEPTIDES
in stock EU
€51.98€5.2/mg99%✔ HPLCShop →
21
ZPZP
ZEUS PEPTIDES
in stock
€55.00€5.5/mg99%— PendingShop →
22
CLECLE
CLEAN PEPTIDES
in stock
€59.95€6/mg99%✔ HPLCShop →
23
PPPP
Peptideplein247
in stock
€49.99€5/mg99%✔ COAShop →
Strength 30mg3
#SuppliersPrice€/mgPrice trend (6 months)PurityCOAProduct ⓘ
1
LUMLUM
LUMO PEPTIDES
in stock
€79.95€2.67/mg99%✔ Bridge LabsShop →
2
PRIPRI
PRIMAL PEPTIDES BEST
in stock
€79.9999%✔ COAShop →
3
CERCER
CERTAPEPTIDES
in stock RO
€89.99€3/mg99.3%✔ JanoshikShop →
Strength 40mg1
#SuppliersPrice€/mgPrice trend (6 months)PurityCOAProduct ⓘ
1
PUPU
PURECHEMS
in stock
€49.99€1.25/mg99%— PendingShop →

Prices manually checked and updated monthly — source: publicly available supplier data. No affiliate links, no paid placement.

Semax

Mechanism, evidence level, EU status and COA guidance per compound. No dosages, no protocols — that belongs with a doctor.

Open encyclopedia guide →
PeptideCompare AssistantOnline · replies instantly
Hi! I help you quickly find the right page — about legality, COAs, badges or suppliers. No price advice, no dosing.
Try a question
Find a supplier Questions about a peptide? Read our articles Compare prices
Navigation assistant · no medical advice