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Glutathione, Cysteine & C

Category: Antioxidants

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Powerful intracellular antioxidant support

  • Cysteine plays a role in phase II detoxification and in the conversion of homocysteine to methionine

  • Cysteine also helps synthesize glutathione

  • Glutathione is one of the body’s most important and powerful antioxidants

  • A major function of vitamin C is to keep glutathione in its reduced form so that it can continue to provide free radical-quenching effects

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Glutathione, Cysteine & C

100 vegetarian capsules

Item Catalog Number: 01541

NON GMO ProductL-cysteine is a conditionally essential amino acid, one of only three sulfur-containing amino acids, the others being taurine (which can be produced from L-cysteine) and L-methionine (from which L-cysteine can be produced in the body by a multi-step process). Cysteine plays a role in the sulfation cycle, acting as a sulfur donor in phase II detoxification and as a methyl donor in the conversion of homocysteine to methionine.1-3 Cysteine also helps synthesize glutathione, the body’s most important intracellular antioxidant and a vital detoxifier.4-7

Glutathione (L-gamma-glutamyl-L-cysteinyl-glycine) is a peptide molecule synthesized in the body from the three amino acids L-glutamic acid, L-cysteine, and glycine. Glutathione is one of the body’s most important and powerful antioxidants,8 helping to detoxify xenobiotics.9-12 A major function of vitamin C is to keep glutathione in its reduced form so that it can continue to provide free radical-quenching effects.13-16

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.17-24 Vitamin C also promotes the absorption of iron, while inhibiting its oxidation.25,26 Vitamin C is a vital cofactor in the formation of collagen, the connective tissue that supports arterial walls, skin, bones, and teeth.20-22

Supplement Facts

Serving Size 1 vegetarian capsule

Amount Per Serving
Vitamin C (as ascorbic acid) 500 mg
Setria® L-Glutathione (reduced) 50 mg
L-Cysteine Hydrochloride 200 mg
Other ingredients: vegetable cellulose (capsule), rice bran, microcrystalline cellulose, silica.


Non-GMO

Setria® is a registered trademark of KYOWA HAKKO BIO Co., Ltd.


Dosage and Use

Take one (1) capsule one to three times daily on an empty stomach, or as recommended by a healthcare practitioner.


Warnings

KEEP OUT OF REACH OF CHILDREN

DO NOT EXCEED RECOMMENDED DOSE

Do not purchase if outer seal is broken or damaged.

When using nutritional supplements, please consult with your physician if you are undergoing treatment for a medical condition or if you are pregnant or lactating.

  1. Mol Pathol. 2003 Oct;56(5):270-4.

  2. Eur J Hum Genet. 2003 Jan;11(1):23-9.

  3. Acta Biochim Pol. 2004;51(2):405-13.

  4. Biol Chem. 2009 Mar;390(3):191-214.

  5. Aviat Space Environ Med. 2008 Dec;79(12):1106-11.

  6. Int J Gen Med. 2011 Jan 25;4:105-13.

  7. Cardiovasc Toxicol. 2011 Mar;11(1):1-9.

  8. Antioxid Redox Signal. 2011 Oct 1;15(7):1957-97.

  9. Mutat Res. 2005 Dec 11;591(1-2):74-92.

  10. FEBS Lett. 2005 Aug 1;579(19):4081-7.

  11. FEBS J. 2009 Jan;276(1):58-75.

  12. Toxicol Sci. 2007 Dec;100(2):513-24. Epub 2007 Sep 22.

  13. Clin Chim Acta. 2003 Jan;327(1-2):187-8.

  14. Proc Natl Acad Sci USA. 1991 Jun 1;88(11):4656-60.

  15. Plant Physiol. 2011 Jan;155(1):2-18.

  16. Am J Clin Nutr. 2000 May;71(5):1194-200.

  17. Biochim Biophys Acta. 2012 Dec;1826(2):443-57.

  18. Redox Rep. 2010;15(1):11-9.

  19. Adv Nutr. 2011 Mar;2(2):78-88.

  20. Altern Med Rev. 2003 Nov;8(4):359-77.

  21. J Invest Dermatol. 2002 Apr;118(4):565-72.

  22. Radiat Environ Biophys. 2007 Mar;46(1):61-8.

  23. Free Radic Biol Med. 2007 Sep 1;43(5):853-9.

  24. PLoS Negl Trop Dis. 2012;6(7):e1729.

  25. Br J Nutr. 2003 Dec;90(6):1081-5.

  26. Am J Clin Nutr. 2006 Oct;84(4):830-4.

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