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However, long-term use of high concentrations, large-area topical applications, or injectable administration may increase the potential risk of copper accumulation in skin tissues

For a 100 mg vial, adding 2 mL of BAC water gives a 50 mg/mL concentration

Research on GHK-Cu for skin in women (including both clinical trials measuring skin density and dermatological studies on photoaging) consistently show meaningful results at the 12 mg/day injectable dose range or equivalent topical coverage

The triple-agent combination means we cannot determine whether copper peptides contributed independently or if results are primarily driven by the minoxidil-dutasteride-microneedling combination