✔ Clinically-Studied Formula

NAC N-Acetyl-L-Cysteine for Daily Antioxidant Support

NAC N-Acetyl-L-Cysteine for Daily Antioxidant Support

  • Dissolves Mucus at the Molecular Level
  • Restores Glutathione — Your Lungs' Natural Defense
  • Hospital-Grade Compound Used Since 1963
  • Clinically Shown to Reduce Flare-Ups
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Micheal and 12,784 people purchased

Mucinex just adds water to thin your mucus — the sticky structure stays intact. Inhalers force airways open temporarily but don't address the mucus or inflammation.

NAC works differently. It chemically breaks the bonds holding mucus together, dissolving it at the molecular level. Plus, it restores glutathione — your lungs' natural defense system.

Take 1 capsule daily with water, preferably with a meal. For enhanced results, some people take one in the morning and one in the evening.

Consistency is key — NAC works best when taken daily over several weeks.

Week 1-2: Many people notice more productive coughs as stuck mucus finally starts moving. This is a good sign.

Week 3-4: Morning clearing typically gets easier. Breathing feels less heavy.

Month 2-3: Glutathione levels rebuild. Many report fewer flare-ups and more energy overall.

Yes. NAC has been used in hospitals for over 60 years and is on the WHO's list of Essential Medicines. Clinical trials like PANTHEON studied patients taking NAC daily for a full year with no significant side effects.

It's also the FDA-approved antidote for Tylenol overdose — that's how well-established its safety profile is.

NAC has been studied alongside standard COPD treatments (including inhalers and bronchodilators) with no conflicts reported.

That said, we always recommend checking with your doctor before adding any supplement — especially if you're on multiple medications.

Shipping: Free shipping on orders over $50. Orders ship within 10-12 business days.

Guarantee: Try GARX NAC risk-free for 60 days. If you don't notice easier breathing and less congestion, contact us for a full refund — no questions asked.

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Tried & Trusted by 100,000 Customers

✦ 60+ Years of Hospital Use
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✦ WHO Essential Medicine
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✦ 60-Day Money-Back Guarantee
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✦ True Mucolytic — Dissolves, Doesn't Just Thin
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✦ 1,055+ Verified Reviews
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✦ Restores Glutathione Your Lungs Need
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✦ FDA-Approved for Liver Protection
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✦ 60+ Years of Hospital Use
|
✦ WHO Essential Medicine
|
✦ 22% Fewer Flare-Ups (PANTHEON Trial)
|
✦ 60-Day Money-Back Guarantee
|
✦ True Mucolytic — Dissolves, Doesn't Just Thin
|
✦ 1,055+ Verified Reviews
|
✦ Restores Glutathione Your Lungs Need
|
✦ FDA-Approved for Liver Protection
|

  • “Easy addition to my daily routine.

    I’ve been taking this NAC consistently for a few weeks now and love how simple it is to add into my routine. No stomach issues, no weird aftertaste. Feels like a solid, high-quality supplement.

    Bria S. — Age 38
    SCOTTSDALE, AZ

  • “Noticeable difference after a couple weeks.”

    I didn’t expect anything dramatic, but after about two weeks I felt more balanced overall. I appreciate how clean the formula is and that there are no unnecessary ingredients.

    Michael A. — Age 45
    BIRMINGHAM, AL

  • “Clean, trustworthy supplement.”

    I’ve tried NAC from other brands before, and this one stands out for how gentle it feels. Capsules are easy to swallow and the ingredient transparency gives me confidence.

    Jenna L. — Age 52
    SEATTLE, WA

How NAC Works?

  • Dissolves Mucus

    NAC breaks the disulfide bonds holding thick mucus together — dissolving it at the molecular level, not just thinning it.

  • Restores Defenses

    Your lungs need glutathione to protect and repair themselves. NAC is the only compound that restores it.

  • Reduces Flare-Ups

    Clinical trials show 22% fewer COPD exacerbations with daily NAC use over 12 months.

Real Results From Real COPD Patients

87%
of customers
Breathe Easier Within 30 Days
reporting less morning congestion and deeper breaths
22%
reduction in
COPD Flare-Ups (PANTHEON Trial)
in a 1-year clinical study of 1,006 patients
91%
of users
Would Recommend to a Friend
with COPD, bronchitis, or chronic mucus issues
✦ 60-Day Money-Back Guarantee
|
✦ Free Shipping $50+
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✦ Ships 10-12 Business Days
|
✦ 60-Day Money-Back Guarantee
|
✦ Free Shipping $50+
|
✦ Ships 10-12 Business Days
|

What Customers Are Saying

Real reviews from verified buyers

MB

Margaret B. Verified

2 weeks ago

★★★★★
Day 2 I coughed up more mucus than I had in weeks. Now at week 3, my mornings went from 30-45 minutes of hacking down to maybe 10. My husband said "you sound different." First thing that's actually DONE something.
👍 Like Reply
RD

Richard D. Verified

1 month ago

★★★★★
30-year smoker, quit 5 years ago. My FEV1 improved 25% at my last checkup — doctor asked what I was doing different. Haven't had a bronchitis episode since starting. I can walk 18 holes of golf again. Wish I'd found this years ago.
👍 Like Reply
DH

Donna H. Verified

3 weeks ago

★★★★★
Didn't think this would work — I've wasted hundreds on supplements. But today I walked 4 miles. FOUR MILES. Haven't done that in years. I can play with my grandkids again. I actually feel like myself instead of this weak person I didn't recognize.
👍 Like Reply
JS

James S. Verified

1 week ago

★★★★★
Got a sinus infection last month. Usually that means a COPD flare-up and ER visit. This time my breathing stayed clear through the whole thing. My pulmonologist was shocked. Before NAC: mostly cloudy days. After NAC: mostly CLEAR days. Complete reversal.
👍 Like Reply
PT

Patricia T. Verified

5 days ago

★★★★★
First week I almost gave up. Then day 7-8 I started coughing up a LOT — that's the NAC loosening everything. Now at week 5 the difference is night and day. Don't give up too early. UPDATE: Changed from 4 to 5 stars.
👍 Like Reply
WM

William M. Verified

2 weeks ago

★★★★★
Vietnam vet, on oxygen 3 years. Doctor said this is as good as it gets. But now I wake up choking maybe once instead of 3-4 times. That heavy drowning feeling is lighter. Not a miracle but it gave me back some quality of life I thought was gone.
👍 Like Reply
60 Day

60-Day Breathe-Easy Guarantee

Try GARX NAC for 60 days. If you don't notice easier breathing, less morning congestion, or fewer flare-ups — we'll refund every penny.

Full refund. No questions. No hassle.
NAC N-Acetyl-L-Cysteine for Daily Antioxidant Support

NAC N-Acetyl-L-Cysteine for Daily Antioxidant Support