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You may feel a slight sting or burn when administering the injection, but it varies from person-to-person
May Improve Sleep Some people report better sleep after correcting a B12 deficiency possibly due to improved energy regulation and mood
Gene-level modulation: Pickart & Margolina 2018 documented activity across ~4,000 human genes, with fibroblast expression patterns shifting closer to younger cells
The effects generally last between 1 and 4 weeks, depending on your bodys metabolism, B12 usage, and the severity of the deficiency
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