ghk-cu skin Topical: Evidence, Safety & Options Cu works into the skin easily 2% GHK-Cu Copper Peptide Face

It was developed to target the Wnt signalling pathway and counteract the effects of DHT (dihydrotestosterone) the primary hormone responsible for male and female pattern hair loss

Scientific References #1

They avoided combining copper peptides with other irritating actives during the introduction period

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The extra waiting time preserves peptide integrity that rushing destroys

GHK-Cu is most stable in a mildly acidic to near-neutral environment, and it does not coexist well with strong direct acids in the same layer