Vitamin B6, or pyridoxine is a water-soluble micronutrient. B6 is an extremely important B vitamin which takes part in over 60 enzyme reactions in the body. It is important for the multiplication of cells and is therefore vital in pregnancy, immune system functioning, mucous membranes, skin, and red blood cells. Because these tissues multiply rapidly, they are in great need of vitamin B6. This vitamin is also important for brain chemistry as it is involved in the synthesis of all amino acid neurotransmitters such as serotonin, dopamine, melatonin, epinephrine, norepinephrine and others and is therefore critical for proper hormone support.