GHK?Cu, also known as Copper Peptide / Copper Tripeptide?1,  It is a tripeptide?copper complex presented as blue lyophilized powder. A higher peptide content results in a deeper?blue color. Purity: ≥99% by HPLC. Third?party test reports and batch?specific COA are available upon request. Packaging: 50?mg/vial, 100?mg/vial; 10 vials per box. Custom labels and packing are supported. Solubility: Easily soluble in sterile bacteriostatic water. Storage: Store unopened vials at 2?8℃, protected from light. Keep refrigerated after reconstitution.