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doi: 10.1007/s00198-023-07013-0, 76

Even Skin Tone: Some studies suggest GHK-Cu can improve skin clarity and reduce hyperpigmentation, contributing to a more even skin tone

Hair and nails: Collagen supports healthy hair growth and strengthens nails

GHK-Cu Topical vs Injection: Side-by-Side Comparison Deciding whether to go for the GHK-Cu topical or injection method means understanding the pros and cons of each option

It is commonly discussed in therapeutic and cosmetic contexts because copper, collagen, fibroblasts, and extracellular matrix remodeling are central to skin repair biology