Cysteine Anhydrous Powder
L-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. Cysteine also helps synthesize glutathione, one of the body's most important natural detoxifiers. N-acetyl-cysteine is the acetylated form of L-cysteine, which is more efficiently absorbed and used (54-64).
Glutathione (gamma-L-glutamyl-L-cysteinyl-glycine) is a peptide (short protein)-like 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, helping to detoxify xenobiotics. A major function of vitamin C is to keep glutathione in its reduced form so that they can continue to provide free radical quenching effects (65-68).
Even though many published studies show that garlic, selenium, alpha-lipoic acid, L-cysteine, and N-acetyl-cysteine can boost cellular glutathione levels, people with health problems may benefit from taking high doses of glutathione (65,69-71).
References
54. Acta Biochim Pol. 2004;51(2):405-13.
55. Eur J Hum Genet. 2003 Jan;11(1):23-9.
56. Cornea. 2002 Mar;21(2):164-8.
57. Immunology. 2001 Dec;104(4):431-8.
58. Eur Respir J. 1997 Jul; 10(7): p1535-41.
59. J Immunol. 1994 Jun 15;152(12):5796-805.
60. Biochem Pharmacol. 1992 Mar 3;43(5):961-4.
61. Clin Pharmacokinet 1991 Feb; 20(2):123-34
62. Thorax. 1991 Jan;46(1):39-42.
63. Klin Wochenschr. 1991 Nov 15;69(18):857-62.
64. J Pharmacol Exp Ther. 1986 Feb;236(2):526-34.
65. Wien Klin Wochenschr 2000 Jul 28;112(14):610-6
66. Proc Natl Acad Sci USA. 1991 Jun 1;88(11):4656-60. Erratum in: Proc Natl Acad Sci USA 1991 Aug 1;88(15):6898.
67. Can J Physiol Pharmacol. 1993 Sep;71(9):725-31.
68. Am J Clin Nutr. 1993 Jul;58(1):103-5.
69. Nutr Cancer. 2001;40(2):205-10.
70. J Nutr 2002 Feb;132(2):307-9.
71. Ann Biol Clin 1996; 54:5,181-7.
Supplement Facts
Serving Size 1/8 Rounded teaspoon
Servings Per Container approximately 343
Amount Per Serving
L-cysteine HCl (anhydrous) 875 mg
Other ingredients: none.
This product contains NO milk, egg, fish, peanuts, crustacean shellfish (lobster, crab, shrimp), soybeans, tree nuts, wheat, yeast, gluten, corn, or rice. Contains NO sugar, and no artificial sweeteners, flavors, colors, or preservatives.
Dosage and Use
Mix 1/8 rounded teaspoon daily in water or juice, or as recommended by a healthcare practitioner.
Caution
Those who supplement with L-cysteine should drink at least six to eight glasses of water daily in order to prevent cysteine renal stones.
Keep out of reach of children.
Do not exceed recommended dose.
Do not purchase if outer seal is broken or damaged.
If you have a bad reaction to product discontinue use immediately.
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.
Glutathione (gamma-L-glutamyl-L-cysteinyl-glycine) is a peptide (short protein)-like 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, helping to detoxify xenobiotics. A major function of vitamin C is to keep glutathione in its reduced form so that they can continue to provide free radical quenching effects (65-68).
Even though many published studies show that garlic, selenium, alpha-lipoic acid, L-cysteine, and N-acetyl-cysteine can boost cellular glutathione levels, people with health problems may benefit from taking high doses of glutathione (65,69-71).
References
54. Acta Biochim Pol. 2004;51(2):405-13.
55. Eur J Hum Genet. 2003 Jan;11(1):23-9.
56. Cornea. 2002 Mar;21(2):164-8.
57. Immunology. 2001 Dec;104(4):431-8.
58. Eur Respir J. 1997 Jul; 10(7): p1535-41.
59. J Immunol. 1994 Jun 15;152(12):5796-805.
60. Biochem Pharmacol. 1992 Mar 3;43(5):961-4.
61. Clin Pharmacokinet 1991 Feb; 20(2):123-34
62. Thorax. 1991 Jan;46(1):39-42.
63. Klin Wochenschr. 1991 Nov 15;69(18):857-62.
64. J Pharmacol Exp Ther. 1986 Feb;236(2):526-34.
65. Wien Klin Wochenschr 2000 Jul 28;112(14):610-6
66. Proc Natl Acad Sci USA. 1991 Jun 1;88(11):4656-60. Erratum in: Proc Natl Acad Sci USA 1991 Aug 1;88(15):6898.
67. Can J Physiol Pharmacol. 1993 Sep;71(9):725-31.
68. Am J Clin Nutr. 1993 Jul;58(1):103-5.
69. Nutr Cancer. 2001;40(2):205-10.
70. J Nutr 2002 Feb;132(2):307-9.
71. Ann Biol Clin 1996; 54:5,181-7.
Supplement Facts
Serving Size 1/8 Rounded teaspoon
Servings Per Container approximately 343
Amount Per Serving
L-cysteine HCl (anhydrous) 875 mg
Other ingredients: none.
This product contains NO milk, egg, fish, peanuts, crustacean shellfish (lobster, crab, shrimp), soybeans, tree nuts, wheat, yeast, gluten, corn, or rice. Contains NO sugar, and no artificial sweeteners, flavors, colors, or preservatives.
Dosage and Use
Mix 1/8 rounded teaspoon daily in water or juice, or as recommended by a healthcare practitioner.
Caution
Those who supplement with L-cysteine should drink at least six to eight glasses of water daily in order to prevent cysteine renal stones.
Keep out of reach of children.
Do not exceed recommended dose.
Do not purchase if outer seal is broken or damaged.
If you have a bad reaction to product discontinue use immediately.
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.
