Hi, I’m Dr. Kevin Passero, a functional medicine doctor with over 20 years of clinical experience. At my clinics in the Washington, D.C. area, I’ve helped thousands of patients who were told they had “too much acid” restore healthy digestive function and permanently end their symptoms naturally and without side effects. Once we address the real root cause, their symptoms improve—often quickly, and without the dangers associated with long-term acid suppression.

Instead of shutting acid down, we focus on restoring balance, which means calming inflammation, coating and protecting irritated tissue, supporting healthy acid regulation and strengthening the gut lining.

The fact that millions of people think they have no safe, alternative options for heartburn relief is troubling, considering that there’s a safe, natural and remarkably effective way to address the problem.

So what’s the better way? Let me walk you through the approach I use with my patients.

My natural, side-effect free regimen provides rapid symptom relief and works to relieve acid issues with four clinically proven plant-based ingredients combined with a few simple dietary and lifestyle strategies.

It’s a comprehensive, proven solution that does more than mask symptoms—it works to repair and strengthen the gut for long-lasting relief. And it has a great track record in the clinic. (It’s been so effective, I even wrote a book about it!)

My protocol makes it possible for anyone to quickly and safely put an end to acid discomfort without worrying about long-term health consequences. So if you're struggling with acid issues, please keep reading. You don't have to suffer anymore.

I’ve spent decades helping patients address their acid-related issues without relying on long-term acid suppression and dealing with its harmful consequences. My time-tested, proven strategy is a multi-layered approach that:.

• Quickly reduces inflammation
• Permanently heals the gut lining
• Naturally restores microbiome balance
• And, most importantly, allows the digestive system to function as it should

And yes, that means keeping your stomach acid at natural and appropriate levels. Because you need it—to digest food, absorb nutrients and kill harmful microbes.

Despite what your doctor or those endless commercials may tell you, suppressing acid does not solve the problem. You may experience temporary relief but later develop rebound symptoms or dangerous complications that can take years to reverse.

My approach is different, 100% natural and free of side effects. Rather than needlessly reduce acid production, I recommend supporting the tissues affected directly. My protocol quickly calms inflammation, coats and protects vulnerable tissue and gives the gut lining the nutrients it needs to repair and rebuild.

There are many natural options out there, but as I mentioned earlier, there are the four specific ingredients that form the core of the regimen I’ve prescribed to patients with acid-related digestive issues for years. They include DGL licorice, aloe vera, glutamine and zinc carnosine, and I always recommend they be taken in powder form for maximum effectiveness.

Taken together, these plant-based powerhouses synergistically provide the most effective relief—both rapid and long-term—that I’ve ever seen with zero side effects. They’ve transformed lives in my clinic, and they’re backed by research from top institutions worldwide proving their ability to:

There are many natural options out there, but as I mentioned earlier, there are the four specific ingredients that form the core of the regimen I’ve prescribed to patients with acid-related digestive issues for years. They include DGL licorice, aloe vera, glutamine and zinc carnosine, and I always recommend they be taken in powder form for maximum effectiveness.

Taken together, these plant-based powerhouses synergistically provide the most effective relief—both rapid and long-term—that I’ve ever seen with zero side effects. They’ve transformed lives in my clinic, and they’re backed by research from top institutions worldwide proving their ability to:

• Rapidly relieve painful burning in your chest and throat
• Reduce bloating, belching and abdominal discomfort
• Soothe your stomach and enhance your overall digestive health
• Improve your sleep—no more propping your head up in bed!

Many of my patients have already tried just about every product imaginable for their acid-related digestive issues—with little relief. They’re still stuck. But when I get them on the natural regimen I’ve developed, they finally (and quickly) get the relief they’ve been seeking—permanently and with no side effects!

However, while so many of my patients achieved success with my regimen, the truth is many of them had a hard time following it. It required shopping for, purchasing and taking four different products, all in powder form.

Not only was that part of it inconvenient—it was also expensive. I knew there had to be a better solution for the patients in my clinic and anyone else looking for relief.

Fortunately, in addition to running my clinics, I also serve as Chief Science Officer for Durable®, a cutting-edge dietary supplement company that I co-founded with my good friend Josh Corn, who has been a leading natural health advocate for over 20 years.

Together we created a convenient, affordable, all-in-one solution by combining all four components of my clinic regimen into one easy, daily scoop that you mix with water—backed by over 20 years of clinical success.

We call it Durable ACID RELIEF®—and it’s priced as low as $24.95 per tub. It also ships to you for free and includes a one-year guarantee with free return shipping.

What Durable ACID RELIEF doesn’t include is anything artificial or unnecessary. Plus, the entire formula is free of most common allergens, including gluten, dairy and soy. It’s also free of calories and naturally sweetened, giving it a pleasant taste that makes it easy to drink.

Lastly, instead of cheap, chemical-laden plastic, Durable ACID RELIEF comes packaged in sustainable, 100% non-toxic amber glass tubs to preserve freshness and potency.

1. DGL (Deglycyrrhizinated Licorice) for Fast, Proven Relief (750 mg)

Durable ACID RELIEF delivers an extra-strength, clinically validated dose of DGL in a concentrated 8:1 extract. Most supplements are made with regular, low-dose licorice extracts that are ineffective. DGL is a special form that allows for much more concentrated amounts without any of the risks associated with taking high doses of licorice.

What makes DGL so effective is that it quickly promotes mucus production and forms a protective barrier across the gastrointestinal lining. Research shows it’s extremely effective at relieving irritation in the esophagus, stomach and intestinal lining while helping to restore the integrity of these tissues over the long term.

2. Aloe Vera: Nature’s Anti-Inflammatory Soother (100 mg)

Aloe vera isn’t just a remedy for burns and skin irritation—its healing power can be incredibly effective in the digestive tract as well. In one clinical study, aloe vera reduced multiple acid-related symptoms in just two weeks—with no reported side effects. Durable ACID RELIEF includes a full, clinically proven dose of aloe vera.

The key is using a highly concentrated extract (200:1) to deliver this plant’s powerful soothing, anti-inflammatory benefits safely and effectively. Most supplements use non-concentrated doses that just don’t have the potency needed to make a difference. And the research validates this.

3. Glutamine to Heal and Strengthen Your Gut Lining (3,000 mg)

A powerful amino acid that fuels the cells of your gut lining, glutamine is one of the most effective natural substances at healing the gut by strengthening weak areas, reducing gut permeability (commonly known as leaky gut) and calming inflammation. In doing so, glutamine can also help alleviate bloating, gas and irregularity.

Additionally, glutamine has been shown to support microbiome balance and immune function. The research shows that a 3,000 mg dose of glutamine provides maximum effectiveness, and you get optimal absorption when it is in a powder form. Most supplements rely on capsules using sub-par doses of 500 mg to 1,000 mg.

4. Zinc Carnosine: A Unique and Proven Gut-Healing Compound (75 mg)

This specialized combination of zinc and carnosine has been clinically studied for its protective and healing effects on the gastrointestinal tract and for acid-related discomfort. Unlike regular zinc supplements, zinc carnosine is insoluble in saline but dissolves in acid, allowing it to stay in the stomach longer and provide targeted healing to damaged cells.

Zinc carnosine possesses unique adhesive properties, which enable it to bind to irritated stomach tissue, helping to stabilize membranes, reduce inflammation and accelerate healing of damaged cells. It’s by far the most effective form of zinc for supporting the health of the gastrointestinal system and has been used in Japan as an approved therapy for gastric issues due to its strong clinical validation.

5. Pleasant-Tasting, Quick-Dissolving Powder Delivery System

Durable ACID RELIEF is lightly and naturally sweetened and calorie-free. It dissolves quickly in water to ensure that the active compounds come into direct contact with the esophagus and stomach lining. Capsules and tablets fail to provide meaningful relief.

6. Made in the USA & Lab-Tested for Quality You Can Trust

Every ingredient in Durable formulas is carefully sourced from trusted suppliers and verified for purity and potency through independent lab testing. Durable ACID RELIEF is manufactured in the U.S. in a cGMP-certified, FDA-approved facility.

7. Packaged in Sustainable, UV-Protective Amber Glass

Our amber glass tubs are non-toxic, sustainable and infinitely recyclable. They also protect ingredients from light damage and preserve freshness—unlike plastic containers that can leach harmful chemicals.

8. A Great Value (with Free Shipping & Free Return Shipping)

Durable ACID RELIEF is priced as low as $24.95 per tub (a one-month supply) and includes free shipping, free return shipping and our one-year any-reason guarantee—even if you’ve finished every last scoop!

Durable ACID RELIEF Is the Solution You’ve Been Searching For!

I’ve seen firsthand how effectively Durable ACID RELIEF helps my patients get relief from symptoms they’ve struggled with for years. And now I’m inviting you to put it to the test yourself and see the difference it can make for you too. And with our 100% satisfaction guarantee, you can give it a complete personal test run without risking a penny!

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