Selank is a synthetic heptapeptide analogue of tuftsin supplied as a sterile lyophilised powder for in-vitro laboratory investigation of GABAergic and serotonergic receptor binding pathways. Each batch is characterised by reversed-phase HPLC (≥99%) and identity-confirmed by mass spectrometry; a per-batch Certificate of Analysis is issued with every shipment. Specifications Purity: ≥99% (RP-HPLC) Identity: MS-verified Form: Lyophilised powder, sealed vial Storage: −20 °C, protected from light Manufacturer: Oxford Research Syndicate Ltd Batch / Lot: supplied on COA For in-vitro laboratory research use only. Not a medicinal product. Not for human, veterinary, diagnostic, therapeutic or in-vivo use. Not for resale to the general public.