Biogena 5-Hydroxytryptophan 100 with 5-hydroxytryptophan (5-HTP) from the African black bean (Griffonia simplicifolia). The amino acid is a direct precursor of the messenger substance serotonin.
This product is hypoallergenic / does not contain any of the 14 major allergens listed in Annex II (1169/2011) of the EU Food Information for Consumers Regulation.