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This observation led researchers to hypothesize that GHK-Cu supplementation whether topical or injectable could partially restore the repair and regeneration processes impaired by aging

However, prolonged inflammation can contribute to various health problems

Dosing depends on the specific peptide, the vial concentration, body weight, and the protocol being followed

Human clinical trials typically report mild gastrointestinal disturbances and occasional allergic reactions, but rare cases of elevated liver enzymes have been noted, underscoring the need for cautious use, especially in individuals with preexisting liver conditions (92, 93)

Individual response varies based on age, injury severity, dosing protocol, and overall health