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What is it they are looking for additionally, if your symptoms have improved while on B12 injection treatment
This is the basis for twice-daily dosing
Topical options like GHK-Cu and Matrixyl, and oral collagen peptides, carry the least risk because they are cosmetics or supplements, not injectables
Those peptides being marketed for longevity or performance have not been rigorously studied in human trials or approved by the FDA, says Kumar
It's also necessary for cellular metabolism and the metabolism of amino acids and fatty acids
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