Doctor’s Best Stabilized R-Lipoic Acid delivers 200mg of R-Lipoic Acid per veggie capsule, sourced from Sodium R-alpha Lipoate (Na-RALA) — a stabilised salt form that resists degradation from heat, light, and moisture. Each capsule also contains 150µg of D-Biotin. The pack contains 60 veggie capsules, making it suitable for those following a vegetarian or vegan diet.
R-Lipoic Acid is the naturally occurring form of alpha-lipoic acid, a sulphur-containing fatty acid found in humans, animals, and plants. It acts as a co-enzyme in carbohydrate metabolism and plays a role in the cellular processes involved in converting glucose into energy. Using the stabilised Na-RALA form means the molecule remains intact rather than breaking down before absorption, which can be an issue with unstandardised R-Lipoic Acid in its pure state.
Doctor’s Best is a well-regarded US supplement brand known for science-led formulations and quality manufacturing standards. This product is well suited to those who prefer a vegan-friendly capsule format and are specifically looking for the R-form of lipoic acid rather than a racemic alpha-lipoic acid blend.




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