  
Potassium–R–lipoate is a highly bioavailable and stable potassium salt of R–lipoic acid. Regular R–lipoic acid is heat sensitive and may polymerize extensively, decreasing its absorption significantly. In fact, regular R–lipoic acid may need to be refrigerated and may only have a shelf life of six months. On the other hand, heating potassium–R–lipoate to 150°C (302°F) for 6 hours did not result in loss of activity and revealed less than 0.3% polymerization. In real–time stability tests, potassium–R–lipoate remained stable after 18 months. As an added assurance, Pure Encapsulations issued an independent accelerated stability test, in which potassium–R–lipoate was stable over a simulated 18 month period. Furthermore, Pure Encapsulations R–Lipoic Acid (stabilized) delivers 100 mg of actual R–lipoic acid per capsule from 250 mg of potassium–R–lipoate salt. The natural R isomer of alpha–lipoic acid may provide enhanced antioxidant activity, energy production, and general metabolic function. In a recent in vitro study at the Buck Institute for Aging in California, R–lipoic acid moderated oxidative stress in neurons. A related study demonstrates the ability of R–lipoic acid to support memory tasks in animals by supporting mitochondrial function and protecting cells from free radicals. An animal study suggested that R–lipoic acid supported healthy glucose metabolism and bile flow in the liver. Additional studies suggest that R–lipoic acid offers support for glucose metabolism in skeletal muscle. A University of California Berkeley study also indicates that R–lipoic acid may be protective against age–related oxidative stress in the liver. Furthermore, a study at Oregon State University established a potential role for R–lipoic acid in protecting the heart from age–related oxidative stress.
This potassium salt of R–lipoic acid provides a highly stable and bioavailable form of R–lipoic acid, with the potential for enhanced antioxidant protection and metabolic support.
Supplement FactsServing Size 1 capsule
Servings per container 120
Amount per serving
R-lipoic acid (from 250 mg potassium R-lipoate) 100 mg.
vitamin C (as ascorbyl palmitate) 5 mg.
(hypo-allergenic plant fiber added to complete capsule volume requirement)
other ingredients: cellulose, calcium, potassium carbonate, hypo-allergenic plant fiber, vegetable capsule
Recommendations: As a dietary supplement take 1-2 capsules per day, in divided doses, with meals.
Keep this product out of the reach of children.
Warning: If pregnant, consult your physician before taking this or any other product
Store in a cool dry place. Do not use if safety seal is broken or missing.
This encapsulated product contains no hidden coatings, excipients, binders, fillers, shellacs, artificial colors or fragrance. Contains no dairy, wheat, yeast, gluten, sugar, preservatives or hydrogenated oils.
