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Through its antioxidant powers, Glutathione protects the cells that make up this lining from oxidative damage

Another 2022 double-blind study (n=48) combined GHK-Cu with hyaluronic acid, showing 25% fine line reduction and 18% hydration improvement at 8 weeks (An et al., 2022)

The formation of ice crystals can physically damage the delicate protein structure of a peptide, a process called denaturation

The injection site reactions are more prominent than GLP-1s but not treatment-limiting for most people

Key Takeaways GHK-Cu (glycyl-L-histidyl-L-lysine copper) is a naturally occurring tripeptide that acts as a systemic repair signal throughout the body

The full dose of each supplement was delivered in capsules that were identical in weight, size, shape, and color