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It typically contains sterile water along with a small amount of preservative, which helps prevent bacterial growth after opening
If your B12 deficiency is due to your diet, you may only need a single shot to normalize your levels, and the rest can be maintained with a nutritious diet
B12 Injections One injection: $25 / Package of 5 injections: $100 Vitamin B12 is commonly used to treat deficiency caused by medical conditions and supplement those at risk including those who have vegans/vegetarian diets, are pregnant/lactating, or are older adults