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Prebiotics and probiotics are described further below

AEDG tetrapeptide

Abdominal aorta anastomosis in rats and stable gastric pentadecapeptide, prophylaxis and therapy

It is a component of dozens of enzymes including: Lysyl oxidase , a key enzyme for cross-linking of collagen and elastin Cu/Zn superoxide dismutase (SOD1) , the primary antioxidant defense Cytochrome c oxidase , the final part of the mitochondrial respiratory chain Tyrosinase , the control enzyme of melanogenesis Without copper these enzymes would not function

Additionally, because its synthetic, it may be less bioavailable (less easily absorbed) than naturally occurring forms