How Semax Works
Semax is a regulatory neuropeptide modeled from a specific fragment of ACTH. Unlike the full parent hormone, Semax has no hormonal activity on the adrenal glands. Instead, it is highly stable in central nervous system structures, acting as a direct modulator of brain health, focus, and neurochemical balance:
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Sharply Increases BDNF and NGF Expression: Semax triggers a rapid increase in Brain-Derived Neurotrophic Factor (BDNF) and Nerve Growth Factor (NGF) in the hippocampus and frontal cortex. This pathway supports neuroplasticity—the brain’s ability to repair itself, form new connections, and improve long-term memory models.
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Protects Against Ischemia and Low Oxygen: In neurodegenerative and stroke research models, Semax acts as a potent neuroprotector. It buffers neurons against oxidative stress, blocks cell death caused by excess glutamate, and preserves brain cell function during temporary periods of restricted oxygen flow.
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Regulates Dopamine and Serotonin Systems: Semax modulates the breakdown and transport of key neurotransmitters. By stabilizing dopamine and serotonin pathways under conditions of physical or mental stress, it helps maintain mental clarity, drive, and learning capacity in research environments.
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Balances the Immune System in Brain Tissue: It downregulates the genetic expression of pro-inflammatory cytokines inside the brain, preventing runaway inflammation from damaging delicate nervous system tissue.
Chemical Properties
| Property |
Details |
| Product Name |
Semax |
| Compound Type |
Synthetic Nootropic / Neuroprotective Neuropeptide |
| Core Components |
A linear heptapeptide chain containing 7 specific amino acids (Met-Glu-His-Phe-Pro-Gly-Pro), representing a modified core fragment of ACTH (4-7) joined to a tripeptide stabilizer (Pro-Gly-Pro). |
| Purity Standard |
98% or higher purity (verified by lab testing) |
| Appearance |
Fine white powder (turns into a crystal-clear liquid when mixed) |
| pH Range |
Formulated to sit between ~5.0–6.5 when reconstituted in standard sterile laboratory buffers |
| Storage (Unopened Powder) |
Store in the freezer or fridge (-20°C to 4°C). The C-terminal tripeptide extension makes it highly stable, but cooling preserves structural integrity for 2–3 years. |
| Storage (Mixed Liquid) |
Must be stored immediately in the fridge (2°C to 8°C). Do not freeze the liquid form, and keep it safely out of direct sunlight. |
| Intended Use |
Laboratory Research Only |