To all of our great customers:
You may have noticed that some of our prices are much higher than normal.
This is because Life Extension is enforcing a MAP - Minimum Advertised Price.
This is the price we have to advertise, but we can sell for less.
We can and will still sell to you at the low prices you have come to expect!
Just use the "make offer" button and enter the price that you normally pay!
If you don't know the price, just message and we will let you know.
Thank you - we appreciate your business!
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, the body’s most important intracellular antioxidant and a vital detoxifier.
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, helping to detoxify xenobiotics. 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.
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. Vitamin C also promotes the absorption of iron, while preventing its oxidation. Vitamin C is a vital cofactor to the formation of collagen, the connective tissue that supports arterial walls, skin, bones, and teeth.
Setria® is a registered trademark of KYOWA HAKKO BIO Co., Ltd.
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RETURN POLICY: If you are not 100% satisfied with your purchase, please contact us IMMEDIATELY and we will make it right! We can only accept UNOPENED bottles for return or exchange.