ALA exists in two forms, designated as “R-lipoic acid” and “S-lipoic acid.” R-lipoic acid (RLA) is naturally synthesized by humans, animals and plants. S-lipoic acid is formed during chemical synthesis of alpha lipoic acid, which produces a mixture of the two mirror-image compounds containing equal parts of each. This “racemic” mixture is the product used most often in human clinical studies on ALA, although other forms have recently become available and are beginning to be the preferred form of many ALA researchers.
Best Stabilized R-Lipoic Acid contains BioEnhanced™ Na-RALA, the sodium salt of R-Lipoic acid. Pure RLA is a very unstable molecule that has a tendency to polymerize with exposure to heat, light and moisture, turning into a sticky and ineffective product. Unlike pure RLA, BioEnhanced™ Na-RALA is a stabilized form of RLA that will not polymerize at high temperatures, is more bioavailable and has no solvent residues (Carlson et al. 2007).
The RLA in this product is stabilized with Na (sodium). However, one serving of this product contains less than 1% of the Daily Value for sodium, an insignificant contribution to dietary sources.
Suggested adult use: One to two capsules daily, or as directed by a health care professional.
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Best Stabilized R-Lipoic Acid
Doctor’s Best®
Science-Based Nutrition™ Dietary Supplement
- Defends Against Free Radicals*
- Recycles The Antioxidant Vitamins C & E*
- Maintains A healthy Blood Sugar Level As Part Of The Diet*
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Supplement Facts
Serving Size: 1 Capsule
Servings Per Container: 60
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Amount Per Serving
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% Daily Value **
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D-Biotin
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150 mcg
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50%
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R-Lipoic acid
(from 125 mg Sodium R-alpha
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100 mg
Lipoate (BioEnhanced ®
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†
Na-RALA)
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**% Daily Values are based on a 2,000 calorie diet
†Daily Value not established.
Other Ingredients:
Modified cellulose (vegetarian capsule), rice powder, microcrystalline cellulose, sodium bicarbonate, magnesium stearate (vegetable source), silicon dioxide.
Suitable for Vegetarians
Contains Nothing Other Than Listed Ingredients
Suggested Adult Use:
Take 1-2 capsules daily, or as directed by a nutritionally informed physician.
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*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
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