Home / Peptide Database / Semax
NOOTROPIC / BDNF / FOCUS
Semax
ACTH fragment, BDNF upregulation
LIMITED
Russian studies
Available strengths
5/10/30/50/100mg
23 of 23 rows in stock
Potency loss over time
Estimated potency retained (%) per storage condition. Hover the chart for details.
Freezer −20 °C
36+ mo
Stable · >95% potency
Fridge 4 °C
3-4 mo
In use · after recon
Room 20 °C
10-13 days
Limited · moderate loss
Warm 37 °C+
2-3 days
Critical · rapid degradation
⚠ Estimates modelled per compound from its molecular properties (sequence length, cyclisation, oxidation- and deamidation-prone residues, light sensitivity). Indicative only — not lab-measured per batch.
Time in body
No established terminal half-life. Human or animal pharmacokinetics for this compound are not published, so no clearance curve is shown — we don't model a curve from data that doesn't exist.
Strength 5mg3
| # | Suppliers | Price | €/mg | Price trend (6 months) | Purity | COA | Score ⓘ | |
|---|---|---|---|---|---|---|---|---|
| 1 |
 RES
RESEARCH PEPTIDES EUROPE
in stock 🇪🇸 ES
| €17.99 | €3.6/mg | 99.8% | ✔ HPLC/LC-MS | Shop → | ||
| 2 |
 CRY
CRYSTAL PEPTIDES
in stock 🇧🇬 BG
| €24.99 | €5.0/mg | 99.7% | ✔ HPLC | Shop → | ||
| 3 |
 CLE
CLEAN PEPTIDES
in stock 🇳🇱 NL
| €39.95 | €7.99/mg | 99% | ✔ HPLC | Shop → |
Strength 10mg16
| # | Suppliers | Price | €/mg | Price trend (6 months) | Purity | COA | Score ⓘ | |
|---|---|---|---|---|---|---|---|---|
| 1 |
 OME
OMEGA PEPTIDES
in stock 🇳🇱 NL
| €29.99 | €3.0/mg | ▲1.5% | 99% | ✔ Third-party | Shop → | |
| 2 |
 PUL
PULSE PEPTIDES
in stock 🇨🇾 CY
| €29.99 | €3.0/mg | ▲2.5% | 99% | ✔ HPLC/qNMR | Shop → | |
| 3 |
RES
RESEARCH PEPTIDES EUROPE
in stock 🇪🇸 ES
| €29.99 | €3.0/mg | 99.8% | ✔ HPLC/LC-MS | Shop → | ||
| 4 |
 PEP
PEPTIDMARKT
in stock 🇩🇪 DE
| €30 | €3.0/mg | 99.7% | ✔ HPLC | Shop → | ||
| 5 |
 PHD
PhD PEPTIDES
in stock 🇪🇺 EU
| €31.45 | €3.15/mg | 99% | ✔ HPLC | Shop → | ||
| 6 |
 FIT
FIT PEPTIDES
in stock 🇳🇱 NL
| €34.95 | €3.5/mg | ▲5.5% | 99% | ✔ Janoshik | Shop → | |
| 7 |
 RET
RetaEU
in stock 🇳🇱 NL
| €39.95 | €4.0/mg | 99% | ✔ HPLC | Shop → | ||
| 8 |
 PEP
PEPTIDE KONING
in stock 🇳🇱 NL
| €40.46 | €4.05/mg | ▼8.0% | 99% | ✔ COA | Shop → | |
| 9 |
 ADR
ADRIA SCIENCE
in stock 🇸🇮 SI
| €42.3 | €4.23/mg | 99% | ✔ HPLC | Shop → | ||
| 10 |
 NEX
NEXTGEN PEPTIDES
in stock 🇳🇱 NL
| €44.95 | €4.5/mg | ▼4.8% | 99% | ✔ HPLC | Shop → | |
| 11 |
CRY
CRYSTAL PEPTIDES
in stock 🇧🇬 BG
| €44.99 | €4.5/mg | 99% | ✔ HPLC | Shop → | ||
| 12 |
 REG
REGENORIX PEPTIDES
in stock 🇳🇱 NL
| €48.99 | €4.9/mg | 99% | ✔ HPLC | Shop → | ||
| 13 |
 PEP
PEPTA SUPPLY
in stock 🇳🇱 NL
| €49.99 | €5.0/mg | 99% | ✔ HPLC | Shop → | ||
| 14 |
 BEY
BEYOND PEPTIDES
in stock 🇪🇺 EU
| €51.98 | €5.2/mg | 99% | ✔ HPLC | Shop → | ||
| 15 |
 PEP
PEPTIDE LAB
in stock 🇳🇱 NL
| €54.95 | €5.5/mg | 99% | ✘ COA Expired | Shop → | ||
| 16 |
CLE
CLEAN PEPTIDES
in stock 🇳🇱 NL
| €59.95 | €6.0/mg | 99% | ✔ HPLC | Shop → |
Strength 30mg2
| # | Suppliers | Price | €/mg | Price trend (6 months) | Purity | COA | Score ⓘ | |
|---|---|---|---|---|---|---|---|---|
| 1 |
 PRI
| €79.99 | €2.67/mg | ▼3.5% | 99% | ✔ COA | Shop → | |
| 2 |
PEP
PEPTIDE LAB
in stock 🇳🇱 NL
| €157.95 | €5.26/mg | 99% | ✘ COA Expired | Shop → |
Strength 50mg1
| # | Suppliers | Price | €/mg | Price trend (6 months) | Purity | COA | Score ⓘ | |
|---|---|---|---|---|---|---|---|---|
| 1 |
PEP
PEPTIDE LAB
in stock 🇳🇱 NL
| €259.95 | €5.2/mg | 99% | ✘ COA Expired | Shop → |
Strength 100mg1
| # | Suppliers | Price | €/mg | Price trend (6 months) | Purity | COA | Score ⓘ | |
|---|---|---|---|---|---|---|---|---|
| 1 |
PEP
PEPTIDE LAB
in stock 🇳🇱 NL
| €499.95 | €5.0/mg | 99% | ✘ COA Expired | Shop → |
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.