Methylcobalamin, an active coenzyme form of vitamin B-12, is essential for cell growth and replication.
More concentrated than other forms of B-12 in the cerebral spinal fluid, where it can be used by the central nervous system.
Donates methyl groups to the myelin sheath that insulates certain nerve fibers.

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Width : 1.1 inch
Height : 1.1 inch
Length : 2.8 inch

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ASIN : B000GFPDAG