Synergistic blend of vitamin C and citrus bioflavonoids from oranges.

Since 1984, Thorne has set the standard for the exceptional formulation and quality manufacturing of nutritional supplements. Thorne delivers pr...

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Synergistic blend of vitamin C and citrus bioflavonoids from oranges.

Since 1984, Thorne has set the standard for the exceptional formulation and quality manufacturing of nutritional supplements. Thorne delivers premium, science-based products, a health diagnostics technology platform, and the latest in medical education. With more than 350 products, Thorne is the most dispensed brand by 30-40 year old health-care practitioners. Thorne is dedicated to improving the health of our community as well as increasing the knowledge of nutritional health and wellness. Since 2012, Thorne has partnered with educational institutes and local charities to donate more than $1M in products and profits.

Thorne products do not contain any unnecessary binders, coatings, disintegrants, fillers, or lubricants (including magnesium stearate) that could impair absorption. Thorne adheres to the FDA's current Good Manufacturing Practices (cGMPs) and has the highest number of NSF Certified for Sport products which tests for more than 200 banned substances for elite athletic competitions.



  • PAIRED IN NATURE: Citrus bioflavonoids optimize the benefits of vitamin C*
  • IMMUNE FUNCTION: Research shows a decrease in occasional sneezing and runny nose (not associated with a virus) with increased intake of vitamin C*
  • NO CORN STARCH: Not diluted with corn starch, as found in other vitamin C products on the market
  • FREE FROM: Every Thorne product is made with the purest possible ingredients – without gluten or other major allergens (eggs, tree nuts, peanuts). This product also contains no soy, dairy, yeast, shellfish, or fish. The starting material for this product is non-GMO corn. Glucose is extracted from corn and is used in a fermentation process that yields pure ascorbic acid. However, there is no corn in the final product.

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