However, oral vitamin B 12 can be absorbed passively independent of intrinsic factor
It is often described in scientific literature as a stable gastric pentadecapeptide, with the amino acid sequence GEPPPGKPADDAGLV and a molecular weight of approximately 1419 Da
Activation of MC1R in melanocyte research models has been associated with increased production of eumelanin, the darker form of melanin
The commercial manufacturing of the vitamin is done through bacterial fermentation
Storage conditions that shorten unopened shelf life: heat (extended exposure above 25C), freezing and re-thawing (can crack the stopper seal), direct sunlight (degrades benzyl alcohol), and humid environments (can degrade label readability and obscure exp date)
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