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However, certain exogenous (i.e., originating from outside of the body, such as in pills or topical products) peptides and growth factors are listed on the WADA Prohibited List under the category S2: Peptide Hormones, Growth Factors, Related Substances and Mimetics

Since then, numerous studies have demonstrated that GHK-Cu improves wound healing and tissue regeneration and stimulates collagen production

NAD+ is a better choice for anti-aging benefits Glutathione helps reduce oxidative stress levels in the body, while NAD+ supports DNA repair and enhances cell life

It is also given by IV to improve immune function in people with HIV/AIDS, and to people who have had a heart attack