b12 injections vs sublingual treatment Shot Guide: Benefits, Dosage & Side Effects B12 Shots at Home: How,

For those without neurological involvement, 1 mg three times weekly for two weeks

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The key distinction: an NNMT inhibitor raises NAD+ indirectly, by protecting its raw material, rather than supplying it directly the way an NMN or NR supplement does

The mechanism is logical: if melanocytes are still present in the follicle but functionally impaired by B12 deficiency, restoring adequate B12 can restore their function and the hairs they produce will return to their natural colour

All the guidelines state that where neurological symptoms are present (as in your case) treatment with B12 injections should begin immediately - even if B12 levels are within 'normal' limits