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Douglas Laboratories R-Lipoic Acid

Douglas Laboratories R-Lipoic Acid

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Quick Overview

Douglas Laboratories R Lipoic Acid , stabilized R - Isomer of lipoic acid.

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Douglas Laboratories R-Lipoic Acid Product Information

R-Lipoic Acid capsules, provided by Douglas Laboratories, contain 100 mg of pure R-lipoic acid. The R-lipoic acid isomer used in this formulation is provided in a stabilized form as potassium-R-lipoate and does not contain any S-lipoic acid.

Lipoic acid is a nutritional coenzyme that participates in the energy metabolism of proteins, carbohydrates and fats, with a particular role in blood glucose disposal.* It is also able to scavenge a number of free radicals.* As both a fat and water-soluble, sulfur-containing coenzyme, lipoic acid functions in the body as part of several multi-enzyme complexes located in the mitochondria.

Lipoic acid is unique among biological antioxidants, because it is soluble in both water and lipids. This allows it to neutralize free radicals just about everywhere in the body, inside and outside the cells. Due to its unique sulfur-containing structure, lipoic acid can scavenge several types of free radicals, such as the highly reactive hydroxyl, and singlet oxygen free radicals. It is also capable of suppressing the generation of free radicals in the first place, since lipoic acid chelates transition metals, such as iron and copper. Because lipoic acid is involved in so many different antioxidant functions in virtually all body tissues, it has been called the universal antioxidant. Many lipoic acid products contain a racemic mixture of both the R and S enantiomers of lipoic acid. The R-enantiomer of lipoic acid is naturally occurring, and has received special attention as studies indicate it may be better utilized by the body than a racemic mixture.


  • Essential for metabolizing carbohydrates, proteins, and fats, for the conversion of their energy into ATP*
  • Specific actions of lipoic acid in free radical quenching, metal chelation, and antioxidant regeneration*
  • Universal antioxidant*


R-lipoic acid may be a beneficial dietary supplement for individuals who wish to supplement with lipoic acid*

Suggested Use

Adults take 1 capsule daily with food or as directed by physician.*


Store in a cool, dry place, away from direct light. Keep out of reach of children.


These statements have not been evaluated by Health Canada or the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.


Nutrition Facts
Serving Size: 1 Capsule

Amount Per Serving

% Daily Value
Vitamin C (ascorbyl palmitate) 5 mg  
Sodium 14 mg  
R - Lipoic Acid (from 143 mg of Sodium R - lipoic acid)  100 mg  
Note: Serving Sizes are rounded to the nearest whole serving


Suggested Use

Adults take 1 capsule daily with food or as directed by physician.


Store in a cool, dry place, away from direct light. Keep out of reach of children.