Lyophilized GHK-Cu is typically kept refrigerated and protected from light for short-term handling, and frozen (-20C) for longer-term storage
Brightens Skin and Reduces Hyperpigmentation GHK-Cu reduces excessive melanin production by modulating melanocyte activity, helping to: Fade dark spots Lighten age-related pigmentation Promote a more even skin tone GHK-Cu treatment led to reduced pigmentation and improved brightness in clinical studies. Shim et al., Cosmetics 3
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Transdermal drug delivery
In vials, they can look like a powder, a few smaller hockey pucks, or even just a few spots
Concentrated copper peptide application directly in nasolabial fold areas may provide enhanced benefit