What is Selank?
Selank is a synthetic heptapeptide analogue of the immunomodulatory peptide tuftsin, developed by the Institute of Molecular Genetics of the Russian Academy of Sciences. With the sequence Thr-Lys-Pro-Arg-Pro-Gly-Pro, it modulates GABA-A receptors, enhances serotonin and enkephalin activity, and reduces cortisol — producing anxiolytic and nootropic effects without the sedation, dependence, or withdrawal associated with traditional anxiolytics like benzodiazepines.
Research Benefits
- Modulates GABA-A receptors to produce anxiolytic effects without sedation or dependence
- Reduces cortisol and markers of physiological stress response
- Enhances serotonin metabolism — researched for mood stabilization and depression models
- Improves memory consolidation and learning through enkephalin system activation
- Immunomodulatory effects — derived from tuftsin, a natural immune-stimulating peptide
- Anti-anxiety effects without cognitive impairment — "clear-headed calm" in research models
Dosage & Protocol
Research protocols use 250–500 mcg per day administered intranasally or subcutaneously. The ~8-hour half-life supports once or twice-daily administration. Intranasal delivery of 150–250 mcg per nostril is the most studied route for CNS targeting. Research cycles of 2–4 weeks are standard, with reassessment of effects.
Frequently Asked Questions
Selank produces anxiolytic effects via GABA-A receptor modulation — similar receptor target to benzodiazepines — but without causing sedation, muscle relaxation, cognitive impairment, or dependency. It is studied as a potential alternative to traditional anxiolytics without the addiction liability.
Selank is best studied for anxiety reduction, stress resilience, mood stabilization, and memory consolidation. It is particularly relevant for high-stress cognitive performance research, where anxiety suppression and clear-headed focus are both desired outcomes.
Semax elevates BDNF and drives cognitive stimulation, while Selank modulates GABA and serotonin to produce calm focus. Together they create a balanced nootropic stack — cognitive enhancement (Semax) without the anxiety or overstimulation that can accompany it.