Doctors Best

Doctor's Best R-Lipoic Acid Featuring BioEnhanced Na-RALA 100mg 60 Veggie Caps.

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Doctor's Best R-Lipoic Acid Featuring BioEnhanced Na-RALA 100mg 60 Veggie Caps

About Supplement Monster Doctor's Best R-Lipoic Acid Featuring Bio Enhanced Na-RALA 100mg

Lipoic Acid occurs naturally in animals and is essential for aerobic metabolism. However, over the years it is being increasingly used as a dietary supplement in some countries and as a pharmaceutical drug in other countries. Lipoic Acid is a very effective antioxidant and supports the body’s defense against free radicals.

R-Lipoic Acid is in fact, sometimes referred to as the emperor of the antioxidant world. Commonly known as Alpha-lipoic acid, it functions as a water as well as fat soluble antioxidant. Na-RALA is the sodium salt of R-Lipoic Acid and a stabilized form of the RLA. When mixed with Lipoic Acid, it prevents the RLA from degrading at high temperatures. Doctor's Best R-Lipoic Acid featuring BioEnhanced Na-RALA contains an appropriate amount of sodium so that it does not affect the blood pressure levels.


Features at Glance:

  • Helps maintain cardiovascular health
  • Supports eye health
  • Augments cognitive function and brain health
  • Supports healthy ageing



  • The universal antioxidant’ - RLA is the ideal antioxidant. It has the ability to quench a wide variety of free radicals and support functioning of other antioxidants. It is soluble in both water and fat and is able to recycle antioxidant nutrients such as Vitamin C and E
  • Helps support the body’s defence against free radicals
  • Helps maintain healthy glucose metabolism – key factor in cellular processes that metabolize glucose for energy and helps maintain healthy blood sugar levels
  • Supports healthy ageing – supports improved mitochondrial function and decreased free radical damage
  • Supports cognitive function and brain health – ageing is associated with oxidative stress in the brain. Studies have shown longer term memory was enhanced by LA
  • Supports eye health – exceptionally suitable for supporting the retina of the eye. Recommended for smokers as toxins in cigarette smoke are harmful to the retina of the eye
  • Supports cardiovascular health – studies show support for helping maintain healthy weight and healthy lipid metabolism


Adults: Take 1 - 2 capsules daily, or as directed by a nutritionally informed physician.

Nutrition Information

Doctor's Best R-Lipoic Acid Featuring BioEnhanced Na-RALA 100mg 60 Veggie Caps

Serving Size: 1 capsule (60 servings)

  • Amount Per Serving
  • D-Biotin
  • 150mcg
  • -
  • R-Lipoic acid
  • 100mg
  • -



Other Ingredients

Modified cellulose (vegetrain capsule) rice powder, microcrystalline cellulose, sodium bicarbonate, magnesium sterate (vegetable source), silicon dioxide.


What is BioEnhanced™ Na-RLA Stabilized R-Lipoic Acid ?

Alpha-lipoic acid comes in two forms, designated as “R-lipoic acid” and “S-lipoic acid.” R- and S- lipoic acid are enantiomer isomers––molecules that appear as mirror images of each other. R-lipoic acid is naturally synthesized by humans, animals, and plants. S-lipoic acid is formed during chemical synthesis of alpha-lipoic acid, producing a “racemic” mixture of the two enantiomers that is often used in clinical studies on alpha-lipoic acid. Pharmacokinetic studies have shown that R-lipoic acid is more bioavailable than the S- form.1 For example, following single oral doses of 50 to 600 mg of racemic LA, maximum serum levels of the R- form were 40 to 50% higher than the S- lipoic form.

Best Stabilized R-Lipoic Acid contains BioEnhanced™ Na-RLA, the sodium salt of R-Lipoic acid (RLA). Pure RLA is a very unstable molecule that has a tendency to polymerize with exposure to heat, light, and moisture. This presents problems for those wishing to supplement with RLA, since any of these conditions can lead to deactivation of the beneficial activity of alpha-lipoic acid. Unlike pure RLA, BioEnhanced™ Na-RLA is a stabilized form of RLA that won’t degrade at high temperatures. By taking the sodium salt of RLA, its solubility is increased and it has an improved dissolution in the body. It is more bioavailable than regular RLA and has no solvent residues. 


Why include D-Biotin ?

Best Stabilized R-Lipoic Acid includes optically pure D-Biotin, the natural form of biotin. D-Biotin is a water-soluble vitamin and member of the vitamin B-complex that aids in the utilization of other B-complex vitamins. Integral to many of the activities of enzymes in the human body, D-biotin is necessary for the breakdown and conversion of fatty acids and carbohydrates into energy, allowing for the production of fats and excretion of protein breakdown products. Long-term administration of lipoic acid can lower the activities of the biotin-dependent enzymes pyruvate carboxylase and beta-methylcrotonyl-CoA carboxylase by competing with biotin.4 Supplementing with LA may thus increase the body's requirements for this vitamin.