A brown bottle of MegaFood NAC (N-Acetyl-L-Cysteine) contains 120 capsules, each serving provides 600mg. The yellow and green label highlights benefits for respiratory, immune, and liver health, including liver detoxification. A brown MegaFood NAC (N-ACETYL-L-CYSTEINE) supplement bottle with a green lid displays a label showing 600 mg per capsule, usage instructions, glutathione support and liver detox benefits, plus manufacturer details. A brown MegaFood NAC (N-ACETYL-L-CYSTEINE) supplement bottle with a green cap and a mostly white and green label showing supplement facts, a QR code, caution details, and text about antioxidant and glutathione support. Text on a green background about 3,000 banned ingredients and a higher standard for home products.
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A brown bottle of MegaFood NAC (N-Acetyl-L-Cysteine) contains 120 capsules, each serving provides 600mg. The yellow and green label highlights benefits for respiratory, immune, and liver health, including liver detoxification.

MegaFood NAC (N-ACETYL-L-CYSTEINE)

120 count

Why we love it

  • Free from 3,000+ banned ingredients and meets our EU-informed standards.
  • Supports respiratory health and antioxidant function.
  • A natural compound for cellular protection.
  • Promotes overall well-being.
Size: 1 bottle
Purchase options

NAC (N-ACETYL-L-CYSTEINE) $29.99

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

Support your body’s production of glutathione with MegaFood NAC (N-Acetyl Cysteine).+ Offering powerful antioxidant activity, this supplement helps support respiratory, immune, brain, and liver health – including the liver’s detoxification function.

It also helps neutralize free radicals generated by environmental pollutants and supports long-term cellular health. Every serving offers 600 mg of NAC.+

Adults take one capsule of this lung health, cellular health, and healthy liver supplement daily with a beverage between meals, one to three times daily. Bottle contains 120 capsules for 120 servings.

This supplement is vegan, gluten-free, Non-GMO Project Verified, tested for 150 chemical substances, GMP quality assured, and made without the top nine food allergens including milk, eggs, peanuts, tree nuts, soy, wheat, fish, shellfish, and sesame.

MegaFood is a proud B Corporation, meeting the highest standards of overall social and environmental performance, transparency, and accountability. In 2024, we became a member of 1% for the Planet and committed to donating 1% of our annual sales to environmental causes. MegaFood is also certified Plastic Neutral through our partnership with rePurpose Global.

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.

N-Acetyl-L-Cysteine (NAC) 600 Mg

Other Ingredients: Hypromellose, Stearic Acid, Silicon Dioxide, Microcrystalline Cellulose.

*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.

Adults take 1 capsule with a beverage, between meals one to three times daily.

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