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The requested item 00215 is obsolete and has been replaced. The new item is 01534.

N-Acetyl-L-Cysteine

600 mg 60 vegetarian capsules, Item# 01534

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  • N-Acetyl-L-Cysteine
  • 600 mg 60 vegetarian capsules
  • Item Catalog Number: 01534

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.136-138 Cysteine also helps synthesize glutathione, the body’s most important intracellular antioxidant and a vital detoxifier.139-142

N-acetyl-L-cysteine (NAC) is the acetylated form of L-cysteine that has been used to break up pulmonary and bronchial mucous.143-146 It is very efficiently absorbed and has been shown to protect cells directly and support the immune system.146-155 NAC is an antioxidant and a free radical-scavenging agent that increases intracellular glutathione at the cellular level. NAC can act as a precursor for glutathione synthesis as well as a stimulator of the cytosolic enzymes involved in glutathione regeneration.146 NAC has been shown to protect against oxidative stress-induced neuronal death in cultured granule neurons.156

References
Supplement Facts

Serving Size 1 vegetarian capsule

Servings Per Container 60

Amount Per Serving

N-acetyl-L-cysteine

600 mg

Other ingredients: vegetable cellulose (capsule), vegetable stearate, silica.

Dosage and Use
  • Take one capsule one to three times daily with or without food, or as recommended by a healthcare practitioner.
Caution

Those who supplement with NAC should drink 6 to 8 glasses of water daily in order to prevent cysteine renal stones. Cysteine renal stones are rare but do occur.

Warnings