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Scanning electron microscopy analysis reveals that hairs from GHK-Cu-treated models show more regular cuticle structure, increased cortical density, and improved overall fiber integrity

Benefits of combining: Injectable GHK-Cu promotes collagen throughout body, including skin Topical retinol addresses surface texture and wrinkles Complementary mechanisms Faster, more dramatic skin improvements Protocol: Injectable GHK-Cu: 1-2mg, 3-5x weekly subcutaneous Topical retinol: Nightly (or as tolerated) Topical peptide serum: Optional additional layer See our copper peptides guide for injectable GHK-Cu protocols

E., Hackett, T

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