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CognitiveInvestigational

Semax

Intranasal
Written by Peptide Association Editorial TeamMedically reviewed by Ian Justl Ellis, MD, CPTLast reviewed Editorial policy

Overview

A synthetic heptapeptide analog of the ACTH(4-7) fragment (Met-Glu-His-Phe-Pro-Gly-Pro) with nootropic and neuroprotective properties. Semax modulates BDNF and NGF expression, enhances monoaminergic neurotransmission, and provides neuroprotection through anti-oxidant and anti-inflammatory mechanisms.

Mechanism of Action

It crosses the blood-brain barrier via intranasal administration.

Research Summary & Key Findings

Approved in Russia and Ukraine for treatment of stroke, cognitive disorders, and optic nerve disease. Clinical studies demonstrated improved memory, attention, and cognitive performance. Research shows upregulation of BDNF and trkB expression in the hippocampus and cortex.

Clinical Status

Investigational

Semax is in the investigational stage. While preclinical and early-phase data exist, it has not received regulatory approval for clinical use in the United States.

Administration Routes

Intranasal

References

Primary literature

Study-level citations for this compound are being verified against the primary sources before publication. The database queries above return the current indexed literature in the meantime.

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Disclaimer: This information is provided for educational and research purposes only. It is not intended as medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before starting any peptide therapy. The Peptide Association does not endorse or recommend any specific treatment protocol. See our editorial policy for how this content is produced and reviewed.