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Proper hair growth relies on adequate levels of vitamin B12

It is not for human or animal consumption, nor for therapeutic use

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Precautions General Precautions: Vitamin B 12 deficiency that is allowed to progress for longer than 3 months may produce permanent degenerative lesions of the spinal cord

In one aspect of the invention, one or more NNMT inhibitors (such as a cation of Formula I or IA, or otherwise disclosed herein) is contacted with a cell expressing NNMT concurrently with one or more chemical entities (e.g., nicotinamide riboside, nicotinamide mononucleotide) that increase intracellular NAD+ levels to provide muscular therapy