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After an injection, blood levels can remain elevated for several weeks because your body absorbs what it needs and stores the rest in the liver
However, B12 levels can rise regardless of whether treatment is effective
In some research contexts, observations have included mild and transient tolerability-related effects such as: Headaches Nausea Stimulation-related observations Temporary injection-site irritation or localized skin-response variability Research conditions, concentration ranges, dosage ranges, hydration status, administration frequency, and protocol structure may influence tolerability observations across experimental settings
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The consistency of the therapy often determines how sustained the results will be, particularly for those using it to maintain energy or support ongoing weight management
