Topical or SubQ GHK Cu? Same molecule. Very different purposes. Topical you apply it on your skin. Think of it as feeding your skin from the outside. In a 12 week study of 7% GHK CU ACCELERANT Platinum Skin Care Copper Peptide Regenerating Serum for Glowing Skin and Hair NAD+ 500mg + GHK Cu 40mg Dual Research Compound Formulation (540mg Total) Phoenix BioLabs
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