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The requested item 00240 is obsolete and has been replaced. The new item is 00927.

Vitamin C with Dihydroquercetin

1000 mg, 250 vegetarian tablets, Item# 00927

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  • Vitamin C with Dihydroquercetin
  • 1000 mg, 250 vegetarian tablets
  • Item Catalog Number: 00927

Vitamin C, or ascorbic acid, is a white, crystalline, water-soluble substance found in citrus fruits. As an antioxidant, vitamin C scavenges free radicals in the body and protects tissues from oxidative stress.1-8 Vitamin C also promotes the absorption of iron, while preventing its oxidation.9,10 Vitamin C is a vital cofactor to the formation of collagen, the connective tissue that supports arterial walls, skin, bones, and teeth.4-6 A major immune-supporting activity of vitamin C is boosting glutathione levels in human lymphocytes,38 cells that make up about 25% of all white cells in the blood.

More vitamin C is contained in the adrenal glands than any other organ in the body and is required at higher levels during times of stress.11-14 Physical stresses on the body such as ingestion of heavy metals,15-20 cigarette smoking,21-24 immune impairment,25-31 extreme temperatures,31-36 and chronic use of certain medications such as aspirin also signal the need for increased intake of vitamin C.37

Because humans do not manufacture vitamin C internally, it must be obtained through dietary sources or supplements. Few people realize, however, that vitamin C is a water-soluble nutrient that is quickly oxidized and excreted by the body,41 which limits its efficacy. Until now, those seeking to capture vitamin C’s optimal health benefits have had no choice but to consume it several times throughout the day.

Fortunately, a flavonoid antioxidant known as dihydroquercetin functions as a vitamin Csupercharger.” Studies demonstrate that dihydroquercetin acts to inhibit the oxidation of vitamin C, thereby helping to maintain its concentration and recycle vitamin C throughout the body.39,40 This synergistic relationship between dihydroquercetin and vitamin C42 greatly enhances the efficacy of both molecules in the body’s organs and tissues. Vitamin C with Dihydroquercetin was formulated for those seeking to obtain optimal efficacy and antioxidant protection from a vitamin C supplement.

References
1. Biochim Biophys Acta. 2012 Dec;1826(2):443-57.
2. Redox Rep. 2010;15(1):11-9.
3. Adv Nutr. 2011 Mar;2(2):78-88.
4. Altern Med Rev. 2003 Nov;8(4):359-77.
5. J Invest Dermatol. 2002 Apr;118(4):565-72.
6. Radiat Environ Biophys. 2007 Mar;46(1):61-8.
7. Free Radic Biol Med. 2007 Sep 1;43(5):853-9.
8. PLoS Negl Trop Dis. 2012;6(7):e1729.
9. Br J Nutr. 2003 Dec;90(6):1081-5.
10. Am J Clin Nutr. 2006 Oct;84(4):830-4.
11. In Vivo. 1994 Nov-Dec;8(6):1079-85.
12. Ann Nutr Metab. 1990;34(2):85-92.
13. Psychopharmacology (Berl). 2002 Jan;159(3):319-24
14. Am J Clin Nutr. 2007 Jul;86(1):145-9.
15. Genet Test Mol Biomarkers. 2012 Sep;16(9):1001-6.
16. Environ Toxicol Pharmacol. 2011 Jan;31(1):137-42.
17. Acta Biochim Biophys Sin (Shanghai). 2012 Apr;44(4):330-8.
18.Nig Q J Hosp Med. 2012 Apr-Jun;22(2):85-90.
19. Toxicology. 2005 Jul 1;211(1-2):26-35. 
20. Chem Biol Interact. 2001 Jul 31;137(1):75-88.
21. Environ Health Perspect. 2000 Feb;108(2):105-8.
22. Am J Ther. 2007 Mar-Apr;14(2):189-93.
23. Am J Clin Nutr. 2000 Feb;71(2):530-6.
24. Toxicology. 2002 Nov 15;180(2):121-37.
25. J Am Coll Cardiol. 2003 Nov 5;42(9):1656-62.
26. J Pediatr Gastroenterol Nutr. 2003 Jul;37(1):53-62.
27. Cancer Sci. 2003 Apr;94(4):378-82.
28. Adv Ther. 2002 May-Jun;19(3):151-9.
29. Br J Dermatol. 1980 Jan;102(1):49-56.
30. Respir Med. 2007 Aug;101(8):1770-8.
31. Acta Obstet Gynecol Scand. 2007;86(7):783-7.
32. J Int Med Res. 2012;40(1):28-42.
33. Vopr Pitan. 1978 Jan-Feb;(1):44-8.
34. J Am Coll Nutr. 1990 Apr;9(2):150-4.
35. Jpn J Physiol. 1999 Apr;49(2):159-67.
36. Indian J Med Res. 2002 Jul;116:29-34.
37. Med Sci Monit. 2001 Jul-Aug;7(4):592-9.
38. Am J Clin Nutr. 2003 Jan;77(1):189-95.
39. Free Radic Biol Med. 1995 Jul;19(1):45-52.
40. Int. J Food Sci. Tech. 1969;4:255-67.
41. PLoS Med. 2005 Sep;2(9):e307.
42. Free Radic Biol Med. 1997;22(4):669-78.
Supplement Facts

Serving Size 1 vegetarian tablet

Amount Per Serving

Vitamin C (as ascorbic acid)

1000 mg

Dihydroquercetin-3-rhamnoside [from grape extract (leaf)]

10 mg

Other ingredients: microcrystalline cellulose, stearic acid, croscarmellose sodium, hydroxypropyl methylcellulose, vegetable stearate, coating (hydroxypropyl methylcellulose, glycerin), silica.

Dosage and Use
  • Take one (1) tablet daily with food, or as recommended by a healthcare practitioner.
Warnings