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N-Acetyl-L Cysteine (500mg) Description from Natural Factors
Natural Factors N-Acetyl-L-Cysteine (NAC) 500 mg capsules contain a highly stable form of cysteine, an important and diverse amino acid. NAC is a precursor to glutathione (vital to the body's antioxidant defense system), a critical antioxidant scientifically proven to scavenge free radicals. When Glutathione levels are low, the damaging affects of oxidation are left unchecked.

Supplement Facts
Serving Size: 1 capsule
Servings Per Container: 90
Ingredient Amount % Daily Value**
N-Acetyl-L-Cysteine 500mg
** Percent Daily Value is based on a 2000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
† Daily Value not established.

Other ingredients: Gelatin capsule (gelatin, purified water), rice powder, magnesium stearate (vegetable grade).

Manufacturer's Directions
1 capsule 2-3 times daily or as directed by a health care practitioner. For reducing oxidative stress during exercise, take 4 capsules daily before exercise, or as directed by a health care practitioner.

Manufacturer's Disclaimer
Do not use NAC while taking this drug. Use of NAC with nitroglycerine can cause severe headache. Do not use NAC while taking nitroglycerine. Warning: Although NAC's active sulfur is beneficial, some people sensitive to sulfur may experience stomach irritation.