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GHK-Cu is a copper-binding tripeptide widely studied for its involvement in collagen synthesis, antioxidant activity, and gene expression related to tissue remodeling

Of course, its always recommended that you perform patch testing with new skin care products on a small area of your skin first, just to be safe.20 In the case of copper peptides, testing may not only help you rule out an allergic reaction, but it could also allow you to see whether or not youre susceptible to the copper peptide uglies. Who are copper peptide serums for

Because they produce so much energy, they also produce a lot of free radicals as a byproduct

S., & Shin, Y