Thorne 5-Hydroxytryptophan, 90 Capsules

Thorne's 5-Hydroxytryptophan is a dietary supplement formulated to support serotonin production, with the manufacturer stating it is intended to promote restful sleep, manage stress, and decrease sugar cravings. It provides 100 mg of 5-HTP per serving, derived from Griffonia simplicifolia seeds, and includes 6.8 mg of vitamin B6 as pyridoxal 5'-phosphate, the active form that acts as a cofactor for converting 5-HTP to serotonin.

This product is notable for its use of pyridoxal 5'-phosphate to facilitate serotonin synthesis, and the manufacturer notes that 5-HTP is well-absorbed and can be taken with meals without reducing effectiveness. Each lot is tested for contaminants, including being free of Peak X. It comes in a 90-capsule bottle, providing 45 servings, with capsules made from hypromellose and other inactive ingredients, and is manufactured in the USA.