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How GHK-Cu Compares to Retinoids, Vitamin C, and Other Anti-Aging Ingredients The 1998 head-to-head trial by Abdulghani measured procollagen synthesis side by side, and the copper-binding peptide outperformed both vitamin C and tretinoin
They act as signalling molecules that send messages between cells and tissues to perform specific biological functions such as hormone release, tissue repair, fat metabolism, and muscle growth
J Med Virol
mitigating the actions of this protein may increase lean muscle and reduce fat cell storage and fatty mass
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