Protects the body against free radical damage and protects cells and tissues.* Hypoallergenic. Gluten and casein free. Capsules are plant based. Ultra Tested. Kirkmans Alpha Lipoic Acid is a powerful and versatile nutrient with antioxidant activity that helps protect the body against free radical damage and, as a result, is a protector of many types of cells and tissues.* It also helps increase glutathione production, which supports detoxification processes in the body.* Alpha lipoic acid is a nutritient with unique antioxidant activity in that it is both fat- and water-soluble. Other well-known nutrients with antioxidant activity can only function within their soluble media. Because of its dual solubility, alpha lipoic acid can function in both fatty and aqueous parts of a cell and is capable of defending against a wide variety of invading free radicals.*