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In an adult with pattern hair loss or diffuse thinning and no known copper allergy, what is the recommended firstline topical peptide (copperpeptide, GHKCu) regimen?

Researchers studying skin health often explore GHK-CU because healthy skin appearance is closely linked to collagen integrity, tissue renewal, and cellular communication

Specifically, they have been linked with oxidant-dependent ototoxicity and nephrotoxicity, and, in some studies, have been shown to decrease GPx-1 activity in vivo (108, 286, 321, 395)

Thereby, it was suggested that in addition to BPC being isolated from gastric juice and probably primarily acting in the gastrointestinal system, it may have additional regulatory roles in the function of the human lung, kidney, and skin [10]