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Mol Cell Biochem 286:95101, PMID: 16583144 Halliwell B, Gutteridge JMC (1989) Free radicals in biology and medicine
Gut-liver axis signaling in portal hypertension
At optimal concentrations, GHK-Cu increases mRNA production for collagen types I and III, elastin, proteoglycans, and glycosaminoglycans, while laboratory studies show that topical application for 12 weeks improves collagen production in 70% of subjects compared to 50% with vitamin C and 40% with retinoic acid
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While rare, some individuals may experience minor digestive changes such as mild diarrhea after a B12 shot
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