Doctor’s Way Alpha Lipoic Acid (ALA) 300mg provides 300mg of alpha lipoic acid plus 333mcg of biotin in each quick-release capsule. ALA is an antioxidant compound involved in the body’s antioxidant processes, while biotin contributes to normal energy-yielding metabolism. The formula is laboratory tested, non-GMO, and free from gluten, wheat, yeast, lactose, artificial colors, flavors, sweeteners, and preservatives. The bottle contains 150 capsules.