Semax

Wellness

Also known as: ACTH 4-10 Analog, Heptapeptide Semax

Emerging Research

What is Semax?

A synthetic peptide analog of ACTH (adrenocorticotropic hormone) fragment 4-10, developed in Russia for neuroprotection and cognitive enhancement. Approved in Russia and Ukraine for stroke recovery and cognitive disorders. Popular in the nootropic community worldwide.

How it works

Increases BDNF and NGF (nerve growth factor) expression, supporting neuronal survival and synaptic plasticity. Modulates dopaminergic and serotonergic neurotransmission. Unlike full ACTH, it does not stimulate adrenal cortisol production, making it neurologically targeted without hormonal side effects.

What marketers claim

▸genius-level cognitive enhancement
▸cures ADHD and brain fog
▸no side effects whatsoever
▸replaces all ADHD medications

What evidence supports

✓approved in Russia and Ukraine for stroke recovery and cognitive impairment
✓demonstrated neuroprotective effects in ischemic stroke models
✓shown to increase BDNF and NGF levels in multiple studies
✓does not affect cortisol levels despite being an ACTH analog

Best for

those researching neuroprotective peptides under medical guidance

Safety notes & concerns

Full safety guide →

⚠not FDA-approved or recognized by Western regulatory agencies
⚠most clinical evidence is from Russian/Ukrainian research, often in small trials
⚠Western-standard randomized controlled trials are lacking
⚠long-term effects of sustained BDNF elevation are not fully understood
⚠nasal spray formulation — compounded versions may vary in quality and concentration
⚠not a proven treatment for ADHD despite community claims

Pairs well with

Selank (commonly combined in clinical practice)general cognitive health practices

Use caution with

seizure disorders (theoretically could lower seizure threshold)current psychiatric medication without physician guidanceconsult physician before use

Frequently asked questions

Can Semax treat ADHD?

Despite community claims, Semax is not a proven treatment for ADHD. While it may enhance focus and cognitive function through BDNF upregulation, no rigorous clinical trials have established it as an ADHD treatment. It should not be used as a substitute for proven ADHD medications without physician guidance.

Is Semax the same as ACTH?

No. Semax is a synthetic analog of a small fragment of ACTH (amino acids 4-10). Unlike full ACTH, Semax does not stimulate cortisol production from the adrenal glands. It retains the neurotrophic properties of the fragment without the hormonal side effects of ACTH.

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Last updated: 2025-03-21

Medical Disclaimer

The information on this site is for educational and informational purposes only. It is not intended as medical advice and should not be used to diagnose, treat, or prevent any condition. Always consult with a qualified healthcare professional before starting any new supplement, peptide, or treatment protocol.