"Jarrow Formulas Alpha Lipoic Acid is a disulfide molecule (containing two thiol groups). A thiol (or -SH) consists of a sulfur and a hydrogen atom. This unique antioxidant is both lipid and water soluble, a potent promoter of glutathione synthesis. Biotin is an essential cofactor of intracellular carboxylase enzymes and is important for energy production and lipid metabolism. Note: Individuals who are diabetic, being treated for serum glucose control, pregnant or lactating should consult a health care professional before using this product. Dosage Take 1 to 6 tablets per day, preferably with meals, or as directed by your qualified health consultant. Easy-Solv® tablets are designed to disintegrate within several minutes of ingestion. "