Quick Verdict
Cortexin
Risk
N-Acetyl Semax
Risk
Side-by-Side Comparison
About Cortexin
Polypeptide bioregulator from bovine cortex; modulates neurotransmitter activity; activates GABA and dopamine systems; reduces excitotoxicity; stimulates neuronal repair
A cortex-derived polypeptide bioregulator widely used in Russia and Eastern Europe for cognitive enhancement and neuroprotection. Improves learning, memory, and EEG activity.
Research Areas
About N-Acetyl Semax
Same ACTH(4-7) core as Semax, but structural modifications resist peptidase degradation. Enhances BDNF expression, supports dopaminergic and serotonergic neurotransmission, and modulates NMDA receptor activity.
An acetylated and amidated derivative of Semax with enhanced enzymatic stability and prolonged activity. N-terminal acetylation and C-terminal amidation protect the peptide from degradation, extending its nootropic and neuroprotective effects versus base Semax.
Research Areas
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Cortexin
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Providers offering
N-Acetyl Semax
4 listed
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