Science-Based Nutrition Dietary Supplement Vegan Non-GMO Gluten Free Soy Free Helps Promote Healthy Carbohydrate Management. Doctor's Best Stabilized R-Lipoic Acid contains BioEnhanced Na-RALA, the sodium salt of R-Lipoic acid (RLA). Unlike regular RLA, BioEnhanced Na-RALA is a stabilized form of RLA that won't degrade at high temperatures and is more bioavailable than regular RLA. The extraction method used on this RLA prevents solvent residues. Lipoic acid (LA) plays an important role in glucose metabolism and energy production. Because it is soluble in both water and fat, LA is known as the "universal antioxidant". LA occurs in two forms, designated as "R" and "S". Studies suggest that RLA, the natural form, is more biologically active than the S form. Essential for energy generation by mitochondria Helps promote the body's antioxidant defenses Helps maintains healthy blood sugar level already within the normal range D-Biotin helps metabolize fats and carbohydrates