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Since they are not legal to sell for human consumption some brands sell them as research chemicals with no instructions or guidance on use other than a label

In more intensive therapy scenarios (such as for chronic fatigue or recovery support), a practitioner might recommend a series of daily injections over 5-10 days at 100-250 mg per day, then taper to a maintenance schedule

They are not drugs, foods, supplements, or cosmetics, are not approved by the FDA, and are not intended to diagnose, treat, cure, or prevent any disease, or for human or veterinary consumption

While large-scale human trials remain limited, the existing research paints a promising picture