The Neurozan® formula now combines improved micronutrient levels with new advanced specialist nutrients such as 5-HTP. The formula also includes phospholipids & amino acids to help support optimal mental and cognitive activity vitamin B complex and magnesium for the normal functioning of the brain and nervous system and Ginkgo Biloba extract to maintain healthy blood circulation. The new tablet formula now provides an ideal 25mcg (1000IU) vitamin D3 in the preferred more active cholecalciferol form as synthesised by the skin.