Selank

Selank is a synthetic heptapeptide analogue of Tuftsin, developed in Russia alongside Semax. It is a registered pharmaceutical for anxiety disorders, asthenic conditions, and cognitive dysfunction. Selank produces a calming anxiolytic effect without sedation, amnesia, or dependence risk — the anxiolytic counterpart to Semax's stimulating profile.

Selank works primarily through GABA-A receptor modulation and enkephalin stabilisation, producing anxiolytic effects without sedation or dependence. It also upregulates BDNF and serotonin expression, contributing to mood stability, stress resilience, and cognitive clarity.

Anxiety reduction • Cognitive enhancement • Stress resilience • GABA modulation • Mood stabilisation • Immune modulation

250–500 mcg subcutaneous or intranasal daily. 12 weeks on / 4 weeks off. Short cycles (14 days on / 7–14 days off) also valid. Many users find 250 mcg to be their optimal dose. Also suitable for as-needed use during acute stress.

Vial size: 10 mg Water volume: 1 mL bacteriostatic water Concentration: 0.1 mg per unit (10 mg/mL) Add 1 mL of bacteriostatic water slowly along the vial wall — do not shake. 250 mcg = 2.5 units, 500 mcg = 5 units. Also available as a ready-to-use nasal spray (100 mcg per actuation — split daily dose across 2–3 sessions).

Before reconstitution: Store at -20°C or refrigerated. Protect from light. After reconstitution: Refrigerate at 2–8°C. Use within 3–4 weeks.

Half-life: Rapidly metabolized (minutes), but anxiolytic and cognitive effects persist 1–4 hours via downstream signaling Stability: Stable when refrigerated. Timing is flexible — calming rather than stimulating, so no sleep disruption risk. No dependence or withdrawal.