Higher Nature Serotone 5-HTP 50mg 90sSerotone provides 5HTP, a natural amino acid and the pre cursor to serotonin, which is used in the body for neurotransmitter production and has a role to play in maintaining normal nerve and brain function. 5HTP is found naturally in Griffonia simplicifolia. Serotonin may also be converted to Melatonin, important in the sleep wake cycle. Serotone also contains B vitamins and zinc.