Swanson R-Fraction Alpha Lipoic Acid is a step above traditional alpha lipoic acid supplements. Conventional alpha lipoic acid supplements feature a 50-50 racemic blend of R and S isomers, but the R isomer is the only form that occurs in the human body, and it's the form responsible for most of alpha lipoic acid's beneficial effects.

• Our most effective alpha lipoic acid supplement to date
• Isolates the R-isomer, the only form found in the body for enhanced benefit
• Stabilized form of R-alpha lipoic acid
• Per GMP guidelines set forth by the FDA, most products are formulated for 24 months from the date of manufacture. Liquids and probiotics are formulated for 12 months.