Semax
- Third Party Tested
- COA Available
$35.00 – $720.00Price range: $35.00 through $720.00
Semax is a synthetic analog of the adrenocorticotropic hormone (ACTH) fragment 4-10. It was originally developed to investigate cognitive enhancement and neuroprotection in settings of brain ischemia and hypoxia. Unlike the parent hormone, Semax is devoid of hormonal activity but possesses significant neurotrophic properties. In research settings, it is primarily studied for its ability to increase the levels of Brain-Derived Neurotrophic Factor (BDNF) and Nerve Growth Factor (NGF). This heptapeptide serves as a vital reagent for exploring synaptic plasticity, memory formation, and the cellular mechanisms of neurorecovery following injury. Its stable, lyophilized form ensures consistency in neurochemical and behavioral assays.
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Certificate of Analysis
Third Party Tested by Freedom Diagnostics
- Latest
99.82%
| Variant | Semax – 30mg |
|---|---|
| Lot # | SMX30-02 |
| Labeled | 30mg |
| Actual | 30.83 |
| Tested | Aug 24, 2026 |
99.93%
| Variant | Semax 10mg |
|---|---|
| Lot # | SMX10-11 |
| Labeled | 10 mg |
| Actual | 10.35 |
| Tested | Aug 18, 2026 |
99.77%
| Variant | Semax 10mg |
|---|---|
| Lot # | SMX-09 |
| Labeled | 10 mg |
| Actual | 10.39mg |
| Tested | May 6, 2026 |

Compound Information
Technical specifications
- Molecular Profile
What Is Semax?
| Type | Synthetic Neuropeptide / ACTH Analog |
|---|---|
| CAS Number | 80714-61-0 |
| Molecular Weight | 810.9 g/mol |
| Molecular Weight (Cu) | N/A |
| Amino Acids | 7 Amino Acids |
| Sequence | Met-Glu-His-Phe-Pro-Gly-Pro |
| Formula | C37H50N8O10S |
- Storage Requirements
Stability Information
- Store at a stable temperature and minimize warming/cooling cycles.
- Lyophilized powder; keep sealed, dry, and protected from light.
- After reconstitution, avoid repeated freeze–thaw cycles.
Lyophilized Powder
−20°C
Reconstituted
2-8°C

About Semax
Information

Product
Specifications
| Molecular Formula | C33H50N10O9 |
|---|---|
| Molecular Weight | 730.8 g/mol |
| Sequence | Met-Glu-His-Phe-Pro-Gly-Pro |
| Purity | ≥99% (HPLC verified) |
| Form | Lyophilized powder |
| Appearance | White to off-white powder |
| Solubility | Soluble in water, bacteriostatic water |
| Storage | -20°C (lyophilized), 2-8°C (reconstituted) |

FAQ
Frequently asked questions
What is the origin of Semax?
Does Semax have hormonal side effects?
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