Science-Based Nutrition With BioEnhanced Na-Rala Helps Promote Healthy Carbohydrate Management Vegan Dietary Supplement Non GMO Soy Free Gluten Free Essential for Energy Generation by Mitochondria Helps Promote the Body's Antioxidant Defenses Helps Maintain Healthy Blood Sugar Levels Already Within the Normal Range D-Biotin Helps Metabolize Fats and Carbohydrates 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.