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: 50mg/vial, 100mg/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.