5-Hydroxytryptophan (5-HTP) is the precursor to serotonin and appetite-regulating neurotransmitter produced within the body.* It has been combined with vitamin B6, an important cofactor in the conversion to serotonin.* Nature's Way uses 5-HTP extracted from Griffonia simplicifolia beans.

Gluten-free and vegetarian. No sugar, salt, yeast-derived ingredients, wheat, soy, dairy, or artificial colors, flavors, or preservatives. Tablets are enteric-coated. Nature's Way uses 5-HTP extracted from Griffonia simplicifolia beans. It has been combined with Vitamin B6, an important cofactor in the conversion to serotonin*. 5-Hydroxytryptophan (5-HTP) is the precursor to serotonin, an appetite-regulating neurotransmitter produced within the body*.