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Oral bioavailability is negligible due to gastrointestinal degradation
Multiple in-vitro fibroblast studies and a smaller number of clinical-cosmetic studies report improvements in skin elasticity associated with GHK-Cu exposure, linked to increased elastin synthesis and improved lysyl-oxidase-dependent cross-linking
Mihailovi et al., 2013)
Animals treated with CORT in this study showed weight loss and poor hair quality despite enhanced innate immunity
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