GHK-Cu, also known as Copper Tripeptide-1, is a naturally occurring copper-binding tripeptide with the sequence glycyl-histidyl-lysine, widely studied in skin and connective-tissue research. It is supplied as a high-purity lyophilized powder, >=99% by HPLC, in sealed vials for laboratory and cosmetic raw-material studies. GHK-Cu is investigated for its roles in collagen synthesis, wound healing, antioxidant activity and skin-regeneration applications, and is frequently applied in cell-culture and topical-formulation research. The lyophilized format provides high stability and easy reconstitution for reproducible experimental dosing. Every batch is quality-controlled and batch-specific COA can be supplied on request. Unopened product should be kept sealed at 2-8 degree C away from light and moisture, with -20 degree C recommended for long-term storage. We accept both trial and bulk orders, and OEM and private-label service is available. This peptide is for laboratory research use only.