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Semax 1 min read January 28, 2026

Semax Research: Memory Enhancement and Brain Protection

"Here, we found that a single application of Semax (50 μg/kg body weight) results in a maximal **1.4-fold increase of BDNF protein levels accompanying with 1.6-fold increase of trkB tyrosine phosporylation levels, and a 3-fold and a 2-fold increase of exon III BDNF and trkB mRNA levels, respectively, in the rat hippocampus.** Semax-treated animals showed a distinct increase in the number of conditioned avoidance reactions. We suggest that Semax affec

"Here, we found that a single application of Semax (50 μg/kg body weight) results in a maximal 1.4-fold increase of BDNF protein levels accompanying with 1.6-fold increase of trkB tyrosine phosporylation levels, and a 3-fold and a 2-fold increase of exon III BDNF and trkB mRNA levels, respectively, in the rat hippocampus. Semax-treated animals showed a distinct increase in the number of conditioned avoidance reactions. We suggest that Semax affec

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Cellular Energy (Mitochondrial Function) Cognition Neurogenesis Semax

Related Peptides

Cognitive Enhancement Stack (Semax + Selank)

A synergistic nootropic stack combining Semax (ACTH derivative for cognition) with Selank (tuftsin derivative for anxiety). Semax enhances focus, memory, and BDNF while Selank provides anxiolytic and mood-stabilizing effects without sedation.

Enhanced cognition Reduced anxiety

NA-Semax (N-Acetyl Semax)

Acetylated Semax with improved potency and brain penetration. The N-Acetyl modification provides enhanced BDNF elevation and longer-lasting cognitive effects.

Enhanced cognitive boost Better BDNF increase

NA-Semax/NA-Selank Blend

Enhanced bioavailability nootropic blend with acetylated versions

Enhanced cognition Better absorption

Semax

Russian nootropic peptide derived from ACTH (4-10) for focus, memory, and neuroprotection. Developed in Russia and approved for medical use there, Semax increases BDNF, enhances attention, and provides significant cognitive enhancement without stimulant side effects.

Focus enhancement Memory improvement

Semax/Selank Blend

Comprehensive nootropic blend for focus and anxiety balance

Focus + calm Cognitive enhancement

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