b12 injections are used for Compounded Cyanocobalamin (Vitamin B12) Injection Vitamin B12 Injections: Boost Energy,

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Interestingly, research has shown that even in animals lacking beta-3 adrenergic receptors, acute AOD-9604 administration still increased energy expenditure and fat oxidation, suggesting additional metabolic pathways may be involved beyond the primary beta-3 receptor mechanism

Store refrigerated at 28 C in a dry, dark environment to support compound stability

Much of the research framing treats it as an orally administered compound, and in practitioner circles it circulates in oral/sublingual forms (capsules, or the reconstituted solution taken sublingually)

A properly stored reconstituted MOTS-c vial remains stable for the duration of your 20-day cycle