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For example, riboflavin has been shown to be involved in the conversion of tryptophan to niacin (vitamin B3) 57 , which stimulates the production of collagen (type I, III, and V), elastin and fibrillin (1 and 2), butto the best of our knowledgethis has only been substantiated ex vivo in dermal fibroblasts 58

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While animal studies provide robust data, human pharmacokinetic profiles are less defined, with ongoing research exploring its full pharmacological behavior

Experts have raised a number of concerns about the the risks of using experimental, unregulated peptides