Alpha Lipoic Acid works in water and oil soluble environments for maximum effect in all tissues. Featuring ActiveTR 12, a micro-encapsulated, timed-release delivery system designed to achieve maximum benefits. KAL Alpha Lipoic Acid is intended to release active ingredients over a period up to 12 hours. Vegetarian formula. *Base on in-vitro dissolution tested designed to simulate the digestive process. Individual results may vary. KAL Guarantees that NO ingredients other than those listed on this label have been added to this product.