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GHK was also shown to combat copper-dependent oxidation of low-density lipoproteins, while various other common antioxidants, such as superoxide dismutase, only provided protection against oxidation up to 20%
Topical GHK-Cu peptide creams, serums, and lotions are likely the most accessible products for overall skin health
Some studies suggest that glutathione may inhibit melanogenesis by interfering with the activity of tyrosinase, an enzyme critical for melanin synthesis, which has led to its use in skin-lightening protocols
To solve this, formulation design must focus on protecting the molecule until it reaches the small intestine
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