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The classic symptoms of B12 deficiency are persistent fatigue, tingling or numbness in the hands and feet, problems with memory and concentration, mouth ulcers, a sore red tongue, and pale or yellow-tinged skin
Disulfide-containing peptides are sensitive to reducing agents and to extreme pH exposure to either can break the disulfide bridge and produce a structurally different molecule
Each 5 mg vial provides approximately 10 days of dosing at 500 mcg/day or 1617 days at 300 mcg/day
Deficiency may result from several things including: Pernicious anaemia where your body cannot absorb B12 efficiently from food Diets low in B12-rich foods Certain medications, including some contraceptive pills, that interfere with absorption Low B12 levels can manifest in several ways, and many of these symptoms directly affect hair health
