GHK-Cu (glycyl-L-histidyl-L-lysine copper complex) is the most widely studied cosmetic-biology peptide in UK labs, used in research examining collagen and elastin synthesis, matrix metalloproteinase modulation, oxidative stress response, and dermal wound repair. A staple catalogue compound for CROs in skin and regenerative biology. Purity ≥98%, supplied lyophilised. For research use only.

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