At the concentrations typically found in cosmetic products, systemic absorption through intact skin is considered minimal, and copper toxicity from topical use has not been reported in the published literature
In Africa, GLP-1 access is currently limited primarily to private healthcare patients in South Africa, Nigeria, and Kenya, constrained by cost barriers that are not addressable without biosimilar entry or government subsidy programs
GHK-Cu A copper-bound tripeptide central to anti-aging and skin-repair research
Galland S, Georges B, Le Borgne F, Conductier G, Viana Dias J, Demarquoy J
There are rare case reports linking high-dose B12 supplementation to acne flares, possibly through effects on skin bacteria that produce inflammatory compounds
Verify compound integrity first