Natural Factors B12 Methylcobalamin 1000mcg Vitamin Combinations It interferes with the absorption

It interferes with the absorption of the amino acid arginine

vanadium (citrate) 18mcg and zinc (citrate) 11mg

as required

In order to be diagnosed at the doctor's office with low thyroid

5 mg Thiamin (thiamin mononitrate) 12

Natural Factors B12 Methylcobalamin 1000mcg Vitamin Combinations It interferes with the absorptionDescription: Natural Factors B12 Methylcobalamin is the biologically active form of vitamin B12, the form most readily absorbed into the body. It is a water soluble vitamin that is necessary for various bodily processes, including energy production, nervous system function, and production of genetic materials DNA and RNA. Quick Dissolve Sublingual B12 1000 mcg Methylcobalamin is the most active form of B12; effective in brain and nerve function,