AHK-Cu, also known as Copper Tripeptide-3, is a synthetic copper-binding tripeptide with the sequence alanyl-histidyl-lysine, studied in hair-follicle and skin research. It is supplied as a high-purity lyophilized powder, >=99% by HPLC, in sealed vials for cosmetic raw-material research. AHK-Cu is investigated in topical-formulation research for its potential in hair-follicle biology, skin regeneration and copper-dependent cellular processes, and is commonly applied in cell-based and formulation studies. The lyophilized format ensures high stability and easy reconstitution for reproducible experimental dosing. Strict quality control is applied to every production batch, and we can supply batch-specific COA documents upon request. Unopened material should be stored sealed at 2-8 degree C in a dry, dark place; for longer storage -20 degree C is advised while avoiding repeated freezing and thawing. We support trial orders and large-volume supply, with OEM and custom private-label options and discreet worldwide shipping available. For research purposes only, not for human or veterinary use.