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No evidence supports cycling versus continuous use, and no studies have determined optimal treatment duration

References Badenhorst, T., Svirskis, D., Wilsher, T., & O'Sullivan, J

Purchasing from unverified vendors carries documented risk: no guarantee of purity, composition consistency, or absence of contaminants far from the standards expected of regulated products

it is a separate question from whether any given ingredient produces a specific health outcome, which is where honesty about the evidence matters

While MIC B12 injections are generally considered safe, they may cause mild side effects such as redness or soreness at the injection site