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What happens: GHK-Cu modulates MMPs, the enzymes that break down old, damaged tissue

GHK-Cu (glycyl-L-histidyl-L-lysine-copper), one of the most researched cosmetic peptides for collagen stimulation and wound healing, is particularly vulnerable because the copper ion that gives it biological activity also makes it chemically unstable when formulation pH, temperature, or oxygen exposure shifts

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Peptide injections use tiny insulin-style needles (much smaller than what youd get at a blood draw), and most patients tell us its completely painless