Natural Factors N-Acetyl L-Cysteine NAC 1000mg 90 Tablets

$30.99 CAD

Natural Factors N-Acetyl L-Cysteine NAC 1000mg 90 Tablets

$30.99 CAD

SKU: 2865

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Glutathione precursor

N-Acetyl-L-Cysteine (NAC) from Natural Factors is a free form amino acid required by the body to make glutathione. Glutathione is a key antioxidant that is involved in many physiological processes, such as fighting oxidative stress, maintaining a healthy immune system, repairing tissues, and supporting overall health. It also recycles other antioxidants.

Uses & Benefits

  • Scavenges free radicals and reduces oxidative stress
  • Supports immune system health
  • Replenishes depleted glutathione stores
  • Aids respiratory health
  • Reduces the frequency of flu-like symptoms in adults over 65

Medicinal Ingredients

Each vegetarian capsule contains:
N-Acetyl-L-Cysteine (NAC) 1000 mg

Non-Medicinal Ingredients
Microcrystalline cellulose, dicalcium phosphate dihydrate, hydroxypropylcellulose, coating (carbohydrate gum [cellulose], glycerin), stearic acid, silica, vegetable grade magnesium stearate (lubricant).

Suggested Use

  • NAC (N-acetyl-L-cysteine) helps replenish glutathione levels in the body protecting against free radical damage. 
  • NAC is a supportive therapy in the treatment of inflammation of the respiratory system. 
  • Helps relieve symptoms of chronic bronchitis.

Recommended dose

Recommended adult dose: 1 tablet daily with a meal providing protein or as directed by a health care practitioner. Consult a health care practitioner for use beyond 6 months.


Consult a health care practitioner prior to use if you are pregnant, breastfeeding, or have kidney stones or cystinuria. Do not use this product if you are taking antibiotics or nitroglycerin. Keep out of the reach of children.

Allergen Statement

Contains no artificial colours, preservatives, or sweeteners; no dairy, starch, sugar, wheat, gluten, yeast, soy, corn, egg, fish, shellfish, animal products, salt, tree nuts, or GMOs. Suitable for vegetarians/vegans.

Feature Summary

Natural Factors N-Acetyl-L-Cysteine (NAC) 1000 mg provides a higher potency of NAC than standard formulas. It helps reduce the severity and frequency of influenza-like symptoms in adults over 65 and people with chronic degenerative diseases. NAC acts as an antioxidant and is used as a supportive therapy in the treatment of inflammation of the respiratory system. NAC also helps relieve symptoms of chronic bronchitis, such as thick mucus congestion and lung irritation.

NAC is a highly stable form of the amino acid cysteine and is a precursor in the body to the critical antioxidant glutathione. Glutathione exists within every cell of the body, where it protects against free radicals and the oxidative damage they cause. Glutathione is also a key supporter of the body’s immune system and detoxification, helping to protect the liver and detoxify harmful compounds.

Supplementing with NAC is a more reliable way to increase glutathione levels than supplementing directly with glutathione, which breaks down in the digestive tract. NAC 1000 mg is especially beneficial for active people, older adults, and people who live or work in polluted environments. This non-GMO formula is the highest concentration of NAC available at 1000 mg per tablet and is suitable for vegetarians and vegans.


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