B6 (pyridoxine)
Involved in the process of making serotonin and norepinephrine, which are chemicals that transmit signals in the brain. Serotonin and Norepinephrine are vital to mental health and well-being. Vitamin B6 is also involved in the formation of myelin, a protein layer that forms around nerve cells. A co-enzyme in carbohydrate, lipid, and amino acid metabolism.