5-Hydroxytryptophan Capsule is a protein chemical building and  block L-tryptophan. It is commercially produced from the seeds of an African plant known as Griffonia simplicifolia. It is used for sleep disorders like depression, migraine, anxiety and tension-type headaches, obesity, premenstrual dysphoric disorder (PMDD), seizure disorder, and Parkinson's disease and many more. 5-Hydroxytryptophan Capsule work in the brain and central nervous system by enhancing the production of the chemical serotonin.