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GHK-Cu is a peptide that becomes biologically active only after binding to a copper ion
Then subtract this figure from the number you arrived at following stage 2
Looking to boost your immunity or recover faster
Better for absorption-challenged patients: Ideal for patients with Crohns disease, gastric bypass history, or other conditions affecting nutrient absorption
Hernanz A, De la Fuente M, Navarro M, Frank A
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