Dietary supplement. Highest quality. Quick acting. Twinlab Melatonin Caps are easier to swallow than rock hard tablets and dissolve faster to assure maximum absorption. They are free of common allergens such as yeast, corn, soy, milk and egg products. No added sugars, salt (sodium), preservatives or tablet binders and coatings. This product is manufactured at our own state of the art facilities with stringent quality control assuring correct potencies and outstanding product freshness.