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The active metabolite of vitamin B12 is required for the methylation of homocysteine in the production of methionine, which is involved in a number of biochemical processes including the monoamine neurotransmitters metabolism

[DOI] [PubMed] [Google Scholar] 14.McClung J.P., Roneker C.A., Mu W., Lisk D.J., Langlais P., Liu F., Lei X.G

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oz.) Highly-potent serum with a silky, luxurious texture absorbs quickly to help smooth the look of even the most stubborn, deep-set lines, wrinkles and creases around the mouth, eyes, lips and forehead, including marionette lines, frown lines, smile lines and nasolabial folds

Jiang X, Zhang Z, Hou M, Yang X, Cui L

Antioxidants 11(8):1426