5-HTP (5-Hydroxytryptophan) is a pure natural medicine extracted from the seeds of Griffonia simplicifolia, a West African medicinal plant. It is helpful to sleep. 5-HTP is the predecessor of 5-HT (5-hydroxytryptamine), can generate 5-HT under the action of decarboxylase. 5-HTP can enhance the activity of serotonin in the human body, and increase the production of serotonin in brain cells, then increase the content of 5-hydroxytryptamine (5-HT). If the content of 5-HT is low, it will cause depression, anxiety, insomnia, etc. At the same time, it is also the precursor of melatonin, which is an important substance that affects our sleep quality. So supplementation of 5-HTP can improve sleep quality. At the same time, 5-HTP can reduce the carbohydrate intake of the human body, reduce stress hormones, thereby suppress appetite, and achieve the effect of weight loss.