Selank is a synthetic heptapeptide analogue of Tuftsin, developed by the Institute of Molecular Genetics of the Russian Academy of Sciences with several decades of documented research into its anxiolytic, nootropic, and immunomodulatory activity profile. Hudson Science’s formulation delivers 5mg total Selank at 50mcg per metered spray in a nasal delivery system; the most pharmacokinetically relevant administration route for a centrally acting neuropeptide, where intranasal delivery provides proximity to the olfactory epithelium and potential direct CNS access via the olfactory nerve pathway, bypassing the blood brain barrier limitations that complicate peripheral administration of neuroactive peptides.

Selank’s anxiolytic activity operates through indirect GABAergic modulation alongside documented influence on BDNF expression; distinguishing it mechanistically from classical benzodiazepine anxiolytics that produce sedation and dependence through direct GABA A receptor binding. This non sedating anxiolytic mechanism combined with BDNF mediated neuroplasticity effects has positioned Selank as a frequently studied compound in research examining anxiety reduction, cognitive enhancement, and neuroprotection through peptide mediated neurotrophic pathway modulation. Its Tuftsin derived immunomodulatory characteristics add a second distinct research dimension spanning innate immune regulation and macrophage activation pathways.

CSD stocks Selank across two formats, this Hudson Science 5mg nasal spray and the iLab Pharma 10mg lyophilized vial; alongside the closely related Semax 5mg nasal spray from Hudson Science. Researchers comparing Selank delivery routes will find the nasal spray’s direct CNS access pathway particularly relevant for protocols examining central anxiolytic and nootropic activity, while the injectable vial format supports comparative parenteral versus intranasal bioavailability studies. The matched 5mg nasal spray format shared between Selank and Semax supports direct comparative nootropic peptide research between two complementary Russian neuropeptides from a single verified Canadian supplier.

Hudson Science formulations are stocked by Canada Steroid Depot following the same rigorous third party lab verification process applied to every product in our range. Each batch is tested for concentration accuracy and purity before being made available, with COA documentation available on request. CSD’s sourcing standards apply uniformly across all manufacturers we carry, and Hudson Science’s Selank nasal spray meets those standards consistently. All orders ship discreetly across Canada in plain, unmarked packaging with no identifying information on the exterior.

Store at 2–8°C away from direct light. Do not freeze. Keep upright. Intended for research purposes only.

Commonly researched alongside Semax in comparative nootropic and anxiolytic peptide studies. Browse CSD’s full peptide range for complete sourcing.