Semax
Symbol Sx · MW 814 Da
Heptapeptide ACTH(4-10) analog developed in Russia for cognitive and neuroprotective effects.
- Discovered
- 1982
- Half-life
- 5 minutes
- Approval
- Not FDA-approved in U.S.
Reported effects
- Focus & memory
- Neuroprotection
- Mood support
Overview
Semax is a synthetic nootropic peptide associated with focus, memory, mental clarity, neuroprotection, and cognitive performance. It is related to a fragment of ACTH but is designed to focus more on brain-related effects rather than adrenal stimulation. Semax is commonly discussed for attention, learning, mental energy, and neurological recovery research. Its purpose is to support cognitive function, brain resilience, and sharper mental performance. As a mind peptide, Semax is one of the most recognized peptides in the nootropic and brain-health category.
How it's taken
- Typical Administration
- Nasal
- Typical Dosage
- No established FDA-approved dosage; commonly referenced intranasal range is 300–1000 mcg daily total
- Typical Frequency
- 1–3 times daily
Research sources
Source links included from peer-reviewed literature and trusted medical journal records for this peptide.
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For educational purposes only. Many peptides shown are research compounds and not approved for human use in all jurisdictions.