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Injections cost more per dose because there is a charge for the medical service and the pharmaceutical-grade vitamin, but more of what you pay for is actually absorbed
This injection includes the Biological active form of B12 (Methylcobalamin) for quick energy
The result is increased NAD+ levels, but through conservation rather than supplementation
Mechanism in research literature NNMT (nicotinamide N-methyltransferase) catalyses the methylation of nicotinamide using S-adenosylmethionine (SAM) as the methyl donor, producing 1-methylnicotinamide (1-MNA) and S-adenosylhomocysteine
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