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Sex- and age-dependent activity of glutathione (GSH) peroxidase in reproductive organs in pre- and post-pubertal cattle in relation to total antioxidant capacity
By preventing this, glutathione helps protect against signs of ageing and maintain radiance
The copper component is essential for activity - copper is a critical cofactor for numerous enzymes involved in collagen cross-linking (lysyl oxidase), antioxidant defense (superoxide dismutase), wound healing, and tissue remodeling, and GHK functions as a highly effective copper delivery system that facilitates copper uptake into cells and tissues where it can support these essential enzymatic processes
If you want the proven benefits discussed in the research, you must specifically look for "GHK-Cu" (or its alternative name, Copper Tripeptide-1) on the ingredient list