• Thorne NAC 500 mg bottle — N-acetyl cysteine capsules on white background
  • NAC bottle with benefit icons — antioxidant and recovery support
  • Supplement Facts for NAC 500 mg — ingredients and serving panel
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N-Acetyl Cysteine (NAC) | Antioxidant Support | Thorne

Brand: Thorne

Count: 90 Count
$31.99
$31.99
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This product helps with

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  • Muscle Pain
  • Joint Pain
  • Brain Fog
  • General Fatigue
  • Immune Challenges
  • Oxidative Stress
  • Detox & Recovery Needs

Product Description

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N-Acetyl Cysteine (NAC) is a dietary supplement used to support the body’s own antioxidant defenses. NAC serves as a precursor to glutathione, one of the main antioxidants involved in maintaining normal redox balance in cells.

Each capsule delivers 500 mg of NAC in a straightforward formula. It is unflavored and easy to take with a meal. The short ingredient list makes it simple to add to an existing wellness routine, and the capsules are small and easy to swallow.

  • Form: N-acetyl-L-cysteine (NAC)
  • Amount per capsule: 500 mg
  • Bottle size: 90 capsules
  • Supports: Glutathione production and antioxidant activity
  • Free from: Gluten, dairy, soy
  • Flavor: Unflavored
  • Brand: Thorne

NAC can be taken daily with food and water as part of a broader approach that includes sleep, hydration, and balanced nutrition.

Dietary supplement. This product is not intended to diagnose, treat, cure, or prevent any disease.

How it helps those with Long COVID

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N-acetyl cysteine is commonly used as a dietary supplement to support the body’s own glutathione production and antioxidant capacity. By providing a precursor to one of the body’s primary antioxidants, NAC can be a useful option for adults who want to support redox balance and everyday wellness as part of a broader self-care plan. Individual experiences vary, and supplements should be used in coordination with guidance from a clinician when needed.

Scientific Explanation

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N-acetyl cysteine (NAC) is an acetylated form of the amino acid L-cysteine and serves as a precursor to glutathione, a tripeptide that plays a central role in cellular redox balance. Glutathione participates in enzymatic reactions that neutralize reactive oxygen species and supports the maintenance of thiol status within cells. NAC can increase cysteine availability, which may influence intracellular glutathione synthesis. NAC has also been studied for its effects on redox-sensitive signaling pathways and sulfhydryl group donation in various biochemical reactions.

FAQs

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1) How do I take it?
Follow the label. Many adults take 1 capsule once or twice daily with water. Take with food if you’re sensitive to sulfur-like tastes/odors.

2) Can I combine it with other supplements?
Yes. NAC is commonly paired with vitamin C (supports glutathione recycling) and magnesium (muscle/nerve support) as part of a balanced routine. Some people also use alpha-lipoic acid (ALA) for additional redox support. If you take prescription medications or have specific health conditions, check with your clinician first.

3) Any safety notes?
Consult your clinician if you use nitroglycerin, have stomach ulcers, asthma, or are pregnant/nursing. Free from gluten, dairy, and soy.

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