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ACETYL CARNITINE : An essential amino acid with hydrating benefits that boosts the skin cells energy production and regeneration process, leading to healthier and reduced visible signs of aging
Topical application is limited by the stratum corneum barrier, with near-zero penetration through intact skin (Li et al., 2015)
The blue tint of the solution is the copper in GHK-Cu
Understanding these formulation differences helps explain why not all topical copper peptide products perform equally
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