OSAVI L-Tryptophan 500 mg is a supplement supplied in capsule form, with 60 capsules per pack, from the brand Osavi. Each capsule contains L-tryptophan. The full ingredient list is as follows: L-tryptophan Shell (hydroxypropyl methyl cellulose) Ingredients L-tryptophan, shell (hydroxypropyl methyl cellulose). Allergens No allergens declared. Sugar-free, gluten-free, lactose-free, soy-free, non-GMO. Directions 1 capsule, 30 minutes before sleep. Swallow the capsule with water. Warnings Do not exceed the recommended daily serving. Do not use in children, pregnant women or during lactation. This dietary supplement cannot be used as a substitute for a varied diet. To maintain good health, follow a varied diet and a healthy lifestyle. Storage Store in a dark, dry place at room temperature, out of reach of small children.