Selank — dosage, half-life & reference guide

Cognitive peptide · also known as Tuftsin analogue, TP-7

A synthetic peptide based on tuftsin, an immune molecule your spleen naturally produces. Selank reduces anxiety without sedation — it modulates GABA receptors similarly to benzodiazepines but without the dependence or withdrawal. Also boosts BDNF (a brain growth factor) and supports immune function. Approved as an anxiety medication in Russia.

Commonly-researched dose ranges

Selank is commonly researched at 250–500 mcg, daily, by Nasal spray, SubQ injection. These are reference ranges from the literature and community use, not a prescription.

Half-life

Estimated half-life: ~10 min in blood; nasal effect longer. See how it accumulates in the half-life calculator.

Safety & interactions

Commonly reported effects: mild nasal irritation, fatigue, slight dizziness. Discuss with your clinician.

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