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The absorption rate and efficacy can vary significantly depending on the formulation, including the presence of penetration enhancers and the overall stability of the product
Copper-Dependent Antioxidant Activity: GHK-Cu provides a biologically available source of copper ions that stimulate superoxide dismutase (SOD) and other antioxidant enzymes
Hopefully that clears up some of the confusionwithout creating more
How much retatrutide that contains depends entirely on your concentration
"Stimulation of collagen synthesis in fibroblast cultures by the tripeptide-copper complex glycyl-L-histidyl-L-lysine-Cu2+"
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