Vitamin C

500 mg Item # 26354

Vitamin C 500 mg - Life Extension

Vitamin C

500 mg Item # 26354

Vitamin C, or ascorbic acid, is a white, crystalline, water-soluble substance found in citrus fruits and green vegetables. 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 inhibiting its oxidation.9,10 Vitamin C is a vital co-factor to the formation of collagen, the connective tissue that supports arterial walls, skin, bones, and teeth.11-13

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.14-17 Physical stresses on the body such as ingestion of heavy metals,18-23 cigarette smoking,24-27 immune impairment,28-34 extreme temperatures,35-39 and chronic use of certain medications such as aspirin also signal the need for increased intake of vitamin C.40

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  1.  Indian J Exp Biol. 1997 Mar;35(3):264-6.
  2. Am J Clin Nutr. 1996 Jun;63(6):985S-990S.
  3. FASEB J. 1995 Apr;9(7):526-33.
  4. J Am Coll Nutr. 1995 Apr;14(2):124-36.
  5. Altern Med Rev. 2003 Nov;8(4):359-77.
  6. J Invest Dermatol. 2002 Apr;118(4):565-72.
  7. Yale J Biol Med. 1985 Nov-Dec;58(6):553-9.
  8. Free Radic Biol Med. 2007 Sep 1;43(5):853-9.
  9. Clin Physiol Biochem. 1986;4(1):78-86.
  10. Int J Vitam Nutr Res. 1980;50(3):301-8.
  11. Altern Med Rev. 2003 Nov;8(4):359-77.
  12. J Invest Dermatol. 2002 Apr;118(4):565-72.
  13. Yale J Biol Med. 1985 Nov-Dec;58(6):553-9.
  14. Res Vet Sci. 1981 Sep;31(2):219-23.
  15. In Vivo. 1994 Nov-Dec;8(6):1079-85.
  16. Anesteziol Reanimatol. 1990 Sep-Oct;(5):71-4.
  17. Psychopharmacology (Berl). 2002 Jan;159(3):319-24
  18. Chem Biol Interact. 2001 Jul 31;137(1):75-88.
  19. Mutat Res. 1990 Jul;241(3):305-12.
  20. Environ Mol Mutagen. 1993;21(3):229-36.
  21. Exp Lung Res. 1998 Mar-Apr;24(2):219-32.
  22. J Nutr. 1994 Jun;124(6 Suppl):981S-986S.
  23. Biomed Environ Sci. 1998 Mar;11(1):7-14.
  24. Toxicology. 2002 Nov 15;180(2):121-37.
  25. Environ Health Perspect. 2000 Feb;108(2):105-8.
  26. Indian J Public Health. 1998 Jan-Mar;42(1):20-3.
  27. Prog Food Nutr Sci. 1991;15(4):183-217.
  28. Acta Obstet Gynecol Scand. 2007;86(7):783-7.
  29. J Am Coll Cardiol. 2003 Nov 5;42(9):1656-62.
  30. J Pediatr Gastroenterol Nutr. 2003 Jul;37(1):53-62.
  31. Cancer Sci. 2003 Apr;94(4):378-82.
  32. Adv Ther. 2002 May-Jun;19(3):151-9.
  33. Br J Dermatol. 1980 Jan;102(1):49-56.
  34. Respir Med. 2007 Aug;101(8):1770-8.
  35. Indian J Med Res. 2002 Jul;116:29-34.
  36. Indian J Med Res. 1993 Aug;98:178-84.
  37. Vopr Pitan. 1978 Jan-Feb;(1):44-8.
  38. J Nutr. 1989 Mar;119(3):425-7.
  39. Tohoku J Exp Med. 1967 Jun;92(2):207-19.
  40. Med Sci Monit. 2001 Jul-Aug;7(4):592-9.

Serving Size 1 capsule

Servings Per Container 100

Amount Per Serving

Vitamin C (as ascorbic acid)

500 mg

Calcium (as calcium carbonate)

22 mg

Magnesium (as magnesium oxide)

37 mg

Vitamin C Support Base (Rose hips, Acerola Cherry)

95 mg

Bioflavonoid Concentrate (from Lemons)

100 mg

Rutin Concentrate

50 mg

Hesperidin Concentrate

25 mg

Other ingredients: Vegetable cellulose capsule, magnesium stearate, acacia.

Dosage and Use

Take one capsule up to two times daily with a meal or glass of water.


Store in a cool, dry place.

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