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Dermatology, Skin Care, and Peptide for Skin Research In skin care, GHK-Cu is usually discussed as a peptide for skin because topical studies and reviews focus on wrinkles, skin thickness, photoaging, collagen, skin elasticity, and overall skin appearance [2]
For SubQ or IM injection, only research-grade lyophilized peptide reconstituted with bacteriostatic water should be used
After one month, it increased collagen production in 70% of people, while vitamin C only in 50% and tretinoin only in 40%
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