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Glutathione can be found in foods, like fruits, vegetables and fresh meats for instance, and the body can manufacture it naturally in the liver

L-Cystine is an essential amino acid that is contained in the protein beta-keratin, which is an essential structural element for the formation of hair, nails and skin

This superior binding translates to 40% greater collagen synthesis stimulation in fibroblast cultures, as demonstrated in a 2022 study published in the Journal of Peptide Science

The major market opportunities for GHK-Cu anti-aging applications are concentrated in affordable skincare products and mid-to-high-end cosmetic products