Pyridoxine or B6 , is an essential nutrient that plays vital roles in various bodily functions. Helps the production of neurotransmitters, which are chemical messengers in the brain. Contributes to production of serotonin and dopamine, neurotransmitters that affect mood. Helps alleviate symptoms of depression and premenstrual syndrome (PMS). Pyridoxine may alleviate symptoms of carpal tunnel