Griffonia simplicifolia, also known as sleep cap herb, is a West African climbing shrub whose seeds contain 5-HTP. 5-HTP is the building block of serotonin, which can then be converted into the hormone melatonin. Standardised to 15% 5-HTP, equating to 75 mg of 5-HTP per capsule Natural plant extract in vegan capsules Plays a role in the functioning of the brain and nerves.* *Health claim pending European approval.
