How Often Should You Get B12 Injections? Infusion For Health These are my injectables that I use. Methylcobalamin B12 and Methyl Folate due to my pernicious anemia MTHFR dual Mutation. Have you been checked? methylation B complex+ methylated B vitamins for MTHFR gene variant* Methyl B12 Therapy Anti Aging Treatment Clinic in Atlanta, GA Why We Use Methylated B12 (Methylcobalamin) at EVOLVE Not all B12 is created equal! We choose Methylated B12 (Methylcobalamin) because it is the active form your body can use right away