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Here are the signs of a B12 deficiency: Extreme tiredness Lack of energy Memory, understanding, and judgment issues Mouth ulcers Muscle weakness Psychological problems like depression or confusion Tongue redness and swelling The body doesnt naturally produce vitamin B12, so its crucial to treat the deficiency with a B12 shot as soon as possible if your diet doesnt give you your daily recommended dose.

When there is less B12 in your body than required, it slows down cell division, which ultimately disrupts hair production

It has been suggested to promote organized collagen formation, enhance fibroblast activity (cells crucial for connective tissue repair), and improve the mechanical strength of repaired tissues

doi: 10.1016/j.ajo.2004.10.021