A white bottle labeled Thorne NAC N-Acetylcysteine Dietary Supplement with abstract green and blue watercolor design, containing 90 capsules, shown on a plain light background. White supplement bottle with minimalist icons and text. The label mentions Liver/Detox† and Respiratory Support†, suggested use instructions, tamper-evident details, and a Gluten Free symbol at the bottom. White supplement bottle with a label showing Supplement Facts: one capsule contains 500 mg N-Acetyl-L-Cysteine, plus hypromellose, leucine, and silicon dioxide. Thorne Research, Inc. is listed as the manufacturer. A white bottle of Thorne NAC (N-Acetylcysteine) dietary supplement sits on a white surface with a single capsule nearby. A green plant and geometric white shapes are in the background with bright, natural lighting. Text on a green background about 3,000 banned ingredients and a higher standard for home products.
A white bottle labeled Thorne NAC N-Acetylcysteine Dietary Supplement with abstract green and blue watercolor design, containing 90 capsules, shown on a plain light background.

Thorne NAC - N-Acetylcysteine Supplement

1 bottle

Why we love it

  • Free from 3,000+ banned ingredients and meets our EU-informed standards.
  • Boosts glutathione levels to support natural antioxidant activity.
  • Supports respiratory health and natural lung clearance.
  • Third-party certified for purity, potency, and label accuracy.
Purchase options

NAC - N-Acetylcysteine Supplement $33.00

Free carbon neutral shipping on orders $29+. Arrives in 3–5 days. Free, easy 30-day returns.

NAC provides benefits throughout the body – from the lungs to the liver. This wide range of benefits is attributed to its direct antioxidant effects, its importance for replenishing glutathione, and its potential to break disulfide bonds. Why is this last point important? Because this is how it is able to break up mucus, thinning the secretions.*  

NAC also binds toxic metabolites, increases blood flow to vital organs, and supports a balanced inflammatory response.*

Benefits of Thorne's NAC – N-Acetylcysteine 

  • Helps break up mucus secretions in the respiratory tract, supporting the natural clearance process in the lungs and sinuses*
  • Supports the production and function of immune cells*
  • Enhances antioxidant activity to promote a balanced inflammatory response throughout the body*
  • Supports liver and kidney detoxification by aiding the clearance of heavy metals, such as mercury and cadmium*
  • Protects the liver and kidneys from toxic insults*
  • Performs wide-ranging antioxidant functions to help the body neutralize free radicals and replenish its glutathione stores* 

This product has been third-party tested and certified to verify that what's in the package matches what's on the label and to confirm it contains no unsafe levels of contaminants, such as heavy metals, pesticides, and microorganisms.

*Note: 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. Consult your physician before adding a dietary supplement to your diet.

One Capsule Contains:

  • N-Acetyl-L-Cysteine 500 mg.

Other Ingredients: Hypromellose (derived from cellulose) capsule, Leucine, Silicon Dioxide.

*Note: 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. Consult your physician before adding a dietary supplement to your diet.

Take 1 capsule two to three times daily or as recommended by a health-care practitioner.

Grove Values

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3,000+ BANNED INGREDIENTS

Wellness formulas you can trust.

Every wellness product is reviewed by experts and screened for ingredients and materials that align with Grove’s strict standards — so you can feel good about what you and your family rely on to feel your best.

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Vetted for ingredient integrity

No artificial colors, flavors, or phthalates — all common in mainstream products

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No unnecessary extras

Free from artificial dyes, talc, titanium dioxide, and magnesium stearate

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Less plastic, fewer microplastics

Prioritized packaging options that reduce plastic waste and microplastic exposure

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Go Beyond Plastic™ and microplastics.

Plastic products break down into microplastics that can affect human health.

Grove Co. is on a mission to reduce plastic in home essentials — for both people and for the planet.

Learn more on the Home Planet blog