With African origins, 5-HTP is a herbal supplement used in the body and is involved in the production of serotonin. Available in a 3 month supply. What is 5-HTP? 5-HTP or 5-Hydroxytryptophan is made by the body from the amino acid L-Tryptophan. 5-HTP is used by the body to make serotonin, which is important for normal nerve and brain function. 5-HTP is also said to be involved in the production of melatonin, the sleep hormone. However, there is little clinical evidence that taking a 5-HTP supplement can have any health benefits and more research needs to be carried out before it can be recommended. Please bear in mind that you should consult a healthcare professional before taking 5-HTP supplements and to continue to take any prescribed medication. Where does 5-HTP naturally occur? 5-HTP cannot be sourced from your diet, instead it’s extracted from seeds. These tablets contain 5-HTP that’s sourced from the seed of the griffonia simplicfolia (a plant native to Africa). Features of Nutri Within 200mg 5-HTP 180 tablets 3 month\'s supply Free from artificial sweeteners Preservative free 200mg per tablet