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15mg vial3mg/mL 5mL 1
Gastrointestinal absorption of vitamin B 12depends on the presence of sufficient intrinsic factor and calcium ions
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But, there are several reports supporting an association between inadequate B12 levels and premature hair graying, which is grey hair that onsets before the ages of 20-30 (depending on the demographic) (12)
This is why B12 injections remain a popular complement to medically guided weight-loss programs
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