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Competitive athletes should treat it as fully off-limits regardless of legal status outside of sport, since WADA's S0 category ban carries no therapeutic use exemption
Comparative Effectiveness In comparative analysis, GHK-Cu improved collagen production in 70% of treated women compared to 50% with vitamin C cream and 40% with retinoic acid
They work by: Stimulating collagen and elastin production, which helps improve skin elasticity and reduce the appearance of fine lines
Several studies report that by altering flow-mediated endothelium-dependent vasodilation (Bellamy et al, 1998
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