Vitacost L-Tryptophan, 500 mg, 120 Capsules

​​​​Amino Acid Supports Restful Sleep Targeted Wellness Potency · Purity · Pride Vegetarian Dietary Supplement What is L-Tryptophan? L-tryptophan is an essential amino acid. The body does not produce L-tryptophan; it must be obtained through diet. L-tryptophan is a precursor to neurotransmitters serotonin and 5-hydroxytryptophan (5-HTP), the hormone melatonin and the B vitamin, niacin. What are the key benefits of Vitacost® L-Tryptophan? Helps maintain serotonin levels for healthy mood. Supports a normal, healthy attitude during PMS. Plays an important role in supporting natural, restful sleep. May support a normal appetite.