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Typically, you'll receive injections containing 1000-2500 mcg of B12 combined with lipotropic compounds like methionine, inositol, and choline
It works in the sense that the powder dissolves
It can take up to a week, but normally you will start to feel the benefits after a few days
Stability is tracked under both long-term (30 C / 65 % RH) and accelerated (40 C / 75 % RH) ICH Q1A conditions, with a stringent ICH Q1B photostability challenge, and the product is protected from light through amber glass and its secondary packaging
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