Research indicates it may support collagen cross-linking and stabilization through its role as a cofactor in hydroxylation reactions
TB-500, by contrast, works systemically
Greenish or brownish discoloration indicates copper oxidation and peptide bond cleavage, meaning the coordination complex has dissociated and the compound is no longer biologically active
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Several of these compounds overlap with dermal and cosmetic research and are also listed under skin, hair & nail peptides
Ingredients Serving Size: 0.5mL (1 pump) Servings Per Container: 60 PC-157 500mcg KPV 500mcg Other Ingredients: Water, glycerin, ethanol, highly purified phospholipids, tocofersolan, natural mixed tocopherols Additional Information If pregnant or breast feeding, consult your healthcare practitioner before use