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90-Day Supply —
$54.97
Save 28% off MSRP$76.35
Antioxidant Support

Support Your Body's
Natural Glutathione
Production

NAC with Milk Thistle provides a comprehensive blend of antioxidants to support healthy liver function, normal detoxification processes, and cellular protection.*

NAC with Milk Thistle
🛡️ Glutathione Support
🌿 Non-GMO, Gluten & Soy Free
✓ Physician Formulated
Shop Now Free shipping on orders over $99

At a Glance

💊
180 Capsules
📅
90-Day Supply
Manufactured in USA with Globally Sourced Ingredients
🧬
Three-in-One Formula

What It Is

Your liver works around the clock, helping your body manage daily environmental stressors, including chemicals inside and outside your home. NAC with Milk Thistle provides your body with a comprehensive blend of antioxidants—including support for your body's glutathione production—to support healthy liver function, normal detoxification processes, and more.*

N-Acetyl-Cysteine (NAC) allows your body to produce glutathione naturally, which supports healthy immune function and normal metabolic processes, as well as your body's vitamin D metabolism.* This formula combines three key ingredients—NAC, Milk Thistle Seed Extract, and Organic Broccoli Sprouts Powder—to provide a comprehensive blend of antioxidants for supporting healthy liver function and normal daily maintenance.*

How to Use

Adults, as a dietary supplement, take two (2) capsules daily with food, or as directed by your healthcare provider.

Why Your Liver Needs Support

In today's modern environment, your liver handles a significant load of everyday stressors. Factors that may increase demands
on your liver include:

1 Exposure to environmental pollutants in food, water, and air
2 Regular consumption of processed foods containing fructose
3 Contact with household chemicals like phthalates and BPA
4 Age-related decline in glutathione production

Glutathione levels naturally decline with age, which is why many adults consider nutritional support as part
of their wellness routine.*

How It Works

NAC provides your body with the raw materials to naturally produce glutathione—often called your body's "master antioxidant."*

🧬 N-Acetyl-Cysteine (NAC)

A well-known derivative of cysteine valued for its role in supporting glutathione levels. NAC is also an antioxidant on its own, supporting respiratory health and healthy mitochondrial function.*

🌿 Milk Thistle Seed Extract

Traditionally treasured for over 2,000 years for supporting liver, kidney, and gall bladder health. Its primary active component silymarin helps support your liver and promotes healthy liver function by supporting glutathione levels and healthy liver cell function.*

🥦 Organic Broccoli Sprouts Powder

Fresh, young broccoli sprouts are a naturally concentrated source of glucoraphanin. This precursor to sulforaphane may support your body's natural detoxification processes and cellular response to everyday environmental stressors.*

Quality You Can Trust

Following Dr. Mercola's belief in providing premium quality products, these capsules are free of GMOs, gluten, and soy.

Non-GMO
Gluten Free
Soy Free

What Customers Are Saying

★ ★ ★ ★ ★
Must Have Supplement

"One of the most important supplements on the market. Thank you for making your NAC top notch!"

— Diane W.
★ ★ ★ ★ ★
Great Product

"I love this formula. With the added NAC, I feel more upbeat and I like knowing I'm supporting my overall wellness. Would definitely recommend."

— Betty N.
★ ★ ★ ★ ★
Awesome Product

"I really like this combination. I've used many Mercola products over the years, and this one is a winner."

— Veronica Y.

Ready to support your body's glutathione production?

Order NAC with Milk Thistle 1-year money-back guarantee

How We Compare

Consideration This Formula Single-Ingredient NAC
Precursor Approach ✓ ✓
Liver-Supporting Milk Thistle ✓ —
Broccoli Sprouts (Glucoraphanin) ✓ —
Non-GMO, Gluten & Soy Free ✓ Varies
1-Year Guarantee ✓ Varies
Lower Cost Premium ✓

Why We Chose NAC

NAC is a precursor—it provides your body with raw materials to produce its own glutathione naturally.* This allows your body to regulate production based on its own needs.*

Unlike oral glutathione supplements, which are tripeptides that may face digestive challenges, NAC as a single amino acid derivative provides your body with the building blocks to create
glutathione naturally.*

We paired NAC with milk thistle and organic broccoli sprouts to create a comprehensive formula for glutathione support.*

The Science of Glutathione

Understanding the “Master Antioxidant”

Glutathione is an antioxidant made up of three amino acids—cystine, glycine, and glutamate. Often called the "master antioxidant," it's one of the most abundant antioxidants produced in your body and is found in all of your cells. One of glutathione's major roles is to help keep your other antioxidants, such as vitamin C and CoQ10, functioning optimally.*

Why Levels Matter

Glutathione plays an important role in supporting your body's natural defenses against everyday oxidative stress. It supports your body's detoxification processes and plays a role in supporting your liver's normal function. Many systems in your body—including your brain, lungs, joints, skin, and eyes—may benefit from healthy glutathione levels.*

The Vitamin D Connection

Glutathione levels appear to be related to vitamin D levels. Supporting healthy glutathione levels may help support your body's normal vitamin D metabolism. If you are taking a vitamin D supplement or getting adequate sun exposure, maintaining healthy glutathione levels may help support your body's ability to utilize vitamin D.*

Why We Made This Formula

We created NAC with Milk Thistle because we recognized that in our modern world—with its environmental pollutants and processed foods—your liver faces more challenges than ever before. Supporting your body's production of glutathione has become an important part of overall wellness for many adults.*

Instead of taking an oral glutathione supplement that may be broken down during digestion, we recommend providing your body with the raw materials for making its own glutathione. This allows your body to produce only the amount it needs.*

Common Misconceptions

"Taking a glutathione supplement is the best way to raise glutathione levels."

Truth: Because oral glutathione consists of three amino acids, it is rapidly broken down in your stomach by digestive enzymes. Providing your body with NAC, a precursor, allows your body to naturally produce the glutathione
it needs.*

"A healthy person's liver doesn't need support."

Truth: Years ago, this may have been true. But today, your liver encounters more environmental factors than previous generations—from pollutants to processed foods to household chemicals. Extra support may be beneficial.*

"You can get all the antioxidant support you need from diet alone."

Truth: While foods like broccoli, green tea, and milk thistle support glutathione production, the glucoraphanin in fresh broccoli sprouts is naturally more concentrated than in mature broccoli—offering convenient, concentrated support alongside a healthy diet.*

Who May Benefit

This formula may be particularly helpful for:

👤
Adults Over 40

As you age, your body's natural production of glutathione declines. Many adults find that supporting healthy glutathione levels becomes a valuable part of their wellness routine.*

🏙️
Those Exposed to Environmental Toxins

If you live in an urban area or are regularly exposed to pollutants, your liver may benefit from extra antioxidant support.*

☀️
Vitamin D Supplementers

Glutathione plays a role in your body's vitamin D metabolism. Supporting glutathione levels may complement your vitamin D routine.*

Frequently Asked Questions

🛡️
1-Year Money-Back Guarantee

Try it with confidence. If you're not completely satisfied within 1 year, contact us for a full refund. We believe in this product—and we want you to believe in it too.

Support Your Liver Health Today

Support your liver health with our three-in-one formula.*

NAC with Milk Thistle 90-Day
$54.97
Save 28% off MSRP$76.35
90-Day Supply • 180 Capsules • Free shipping over $99
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†Savings based on comparison to Manufacturer's Suggested Retail Price (MSRP). 90-day supply MSRP: $76.35; 30-day supply MSRP: $24.99.

*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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*These statements have not been evaluated by the Food and Drug Administration.
These products are not intended to diagnose, treat, cure, or prevent any disease.

© 1997 - 2026 Dr. Joseph Mercola. All Rights Reserved.

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