How nootropic peptides enhance brain function.
Selank is a synthetic analog of tuftsin, an immune-modulating peptide. But its most remarkable property is anxiolytic (anti-anxiety) without sedation or cognitive impairment. Unlike benzodiazepines, Selank modulates GABA receptors while simultaneously enhancing serotonin metabolism and increasing BDNF levels. The result: reduced anxiety with improved — not impaired — cognitive function.
Selank reduces anxiety while enhancing cognition — the opposite of traditional anti-anxiety medications that cause sedation and brain fog. **Research Status**: Moderate preclinical + limited clinical evidence. Approved in Russia as a nootropic/anxiolytic. Western peer-reviewed studies are limited but supportive. Not FDA-approved.
Semax is a synthetic analog of ACTH (4-10) with a modified structure for enhanced stability. Its primary action is powerful BDNF upregulation — Brain-Derived Neurotrophic Factor, often called 'fertilizer for neurons.' BDNF promotes the growth of new neurons (neurogenesis), strengthens existing neural connections, and protects against neurodegenerative damage. Semax is administered as a nasal spray, making it one of the most convenient peptide therapies.
Semax dramatically increases BDNF — the key growth factor for brain plasticity, memory formation, and neuroprotection. **Research Status**: Moderate preclinical + limited clinical evidence. Approved in Russia and Ukraine as a nootropic. Preclinical BDNF data is strong, but large-scale Western RCTs are lacking. Not FDA-approved.