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Life Extension

N-Acetyl-L-Cysteine (NAC) 600 mg by Life Extension – 60 Capsules

N-Acetyl-L-Cysteine (NAC) 600 mg by Life Extension – 60 Capsules

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What Is N-Acetyl-L-Cysteine (NAC) 600 mg?

Life Extension's N-Acetyl-L-Cysteine (NAC) 600 mg delivers a clinically studied dose of NAC — a stable, highly bioavailable form of the amino acid L-cysteine that serves as the primary precursor to glutathione, the body’s most abundant and powerful intracellular antioxidant. By directly boosting cellular glutathione levels, NAC supports a broad range of health benefits from immune defense to liver detoxification and respiratory health.

Key Benefits

  • Boosts glutathione levels – NAC is the most effective dietary precursor to intracellular glutathione, the master antioxidant
  • Liver detoxification – Supports the liver’s ability to neutralize toxins, medications, alcohol, and environmental pollutants
  • Immune support – Optimal glutathione levels are essential for a well-functioning immune system
  • Respiratory health – NAC has a long clinical history of supporting healthy mucus clearance and lung function
  • Antioxidant defense – Protects cells from oxidative stress caused by free radicals and environmental toxins
  • Healthy aging – Glutathione declines with age; NAC supplementation helps maintain youthful cellular protection

What Makes It Different?

Unlike direct glutathione supplements that can be broken down in the digestive tract before reaching cells, NAC is absorbed intact and converted to glutathione directly inside the cell — where it’s needed most. At 600 mg per capsule, this formula delivers a clinically relevant dose backed by decades of research in liver health, respiratory medicine, and cellular longevity.

Who Should Take This?

  • Adults seeking to maintain or restore healthy glutathione levels
  • Those focused on liver health, detoxification, or frequent alcohol consumption
  • Individuals with respiratory health concerns or seeking lung support
  • Anyone looking for broad antioxidant and immune protection
  • People who already take glutathione and want to enhance its cellular production

Product Highlights

  • 60 Capsules per bottle (60-day supply at 1 capsule/day)
  • 600 mg N-Acetyl-L-Cysteine per capsule – clinically studied dose
  • Boosts cellular glutathione levels directly
  • Non-GMO Verified | Gluten-Free
  • Manufactured by Life Extension – evidence-based supplementation since 1980

Directions for Use

Take one (1) capsule one to two times daily with food, or as recommended by a healthcare practitioner.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

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Supplement Facts

Supplement Facts
Serving Size: 1 Capsule
Servings Per Container: 60

N-Acetyl-L-Cysteine – 600 mg

Other Ingredients: Microcrystalline cellulose, gelatin (capsule), silica, vegetable stearate.

Contains no: gluten, GMOs, artificial colors, artificial flavors, or preservatives.

Directions

Take one (1) capsule one to two times daily with food, or as recommended by a healthcare practitioner.

Warnings

Keep out of reach of children. Do not use if seal is broken. Store in a cool, dry place. Consult a healthcare provider before use if pregnant, nursing, taking medications, or have a history of kidney stones (cystine type). NAC may affect the metabolism of certain medications.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.