Selank is a synthetic heptapeptide with the sequence Thr-Lys-Pro-Arg-Pro-Gly-Pro, developed from the tuftsin family and studied in neuropharmacology and stress-related research. It is supplied as a high-purity white lyophilized powder, >=99% by HPLC, in sealed vials for laboratory use. Selank is investigated in research on anxiety regulation, stress response, emotional stability and neuropeptide signaling, and is commonly applied in cell-based and preclinical neuroscience studies. The lyophilized format ensures high stability and easy reconstitution for reproducible experimental dosing. Every manufacturing run is QC-checked and batch-specific analysis reports are provided on request. Unopened vials should be kept sealed at 2-8 degree C away from light and moisture, and for longer-term storage -20 degree C is advised while minimizing freeze-thaw exposure. We welcome both sample orders and large quantities, and offer OEM, private-label and secure neutral packing for international shipping. For laboratory research use only.