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GHK-Cu (Glycyl-L-Histidyl-L-Lysine Copper) is a naturally occurring copper-binding tripeptide made of three amino acids—glycine, histidine, and lysine—combined with a copper ion. , It is found in ... Young JB et al clean ingredients option:SINGLE https://peptidego.ca/wp-content/uploads/2026/03/KLOW-Product-Image.webp
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