ALA exists in two forms, designated as “R-lipoic acid” and “S-lipoic acid.” R-lipoic acid (RLA) is naturally synthesized by humans, animals and plants. S-lipoic acid is formed during chemical synthesis of alpha lipoic acid, which produces a mixture of the two mirror-image compounds containing equal parts of each. This “racemic” mixture is the product used most often in human clinical studies on ALA, although other forms have recently become available and are beginning to be the preferred form of many ALA researchers.
Best Stabilized R-Lipoic Acid contains BioEnhanced™ Na-RALA, the sodium salt of R-Lipoic acid. Pure RLA is a very unstable molecule that has a tendency to polymerize with exposure to heat, light and moisture, turning into a sticky and ineffective product. Unlike pure RLA, BioEnhanced™ Na-RALA is a stabilized form of RLA that will not polymerize at high temperatures, is more bioavailable and has no solvent residues (Carlson et al. 2007).
The RLA in this product is stabilized with Na (sodium). However, one serving of this product contains less than 1% of the Daily Value for sodium, an insignificant contribution to dietary sources.
Suggested adult use: One to two capsules daily, or as directed by a health care professional.
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