R+ Alpha Lipoic 150 mg | 60 Veg CapsR+ Alpha Lipoic Acid from New Roots Herbal contains 150 mg of R(+) alpha Lipoic acid per capsule. Common alpha lipoic acid supplements are a 50 50 mixture of the natural Rlipoic acid and the synthetic Slipoic acid; these mixtures are called racemic mixtures or racemates. In some cases, S()lipoic acid is simply less effective than R(+)lipoic acid. But in other cases, the S form actually acts in opposition to the activity of Rlipoic acid. Only the R(+)