PR’ing your half marathon doesn’t start with training harder

It starts with supporting the one part of your body most runners never think about: your lungs.

The secret cycle slowing
you down

You know that feeling after a hard workout: the heavy breathing, the cough that lingers after a race.

These happen because every training session pulls huge volumes of air into your lungs. The dust, pollen, and pollution in that air carry into your lungs, setting off a chain reaction:

1 Mucus builds up and thickens in the small airways
2 Inflammation quietly restricts airflow
3 Your respiratory muscles have to work harder — competing with your legs for blood flow

You’ve probably tried quick fixes to help you breathe easier, like:

Breathing exercises before races
Prescription sports inhalers
Salt pipes or steam therapy

But each of these only treats the symptom, not the underlying buildup in your lungs. To breathe at full capacity, you have to support the natural process that helps your airways clear themselves.

Before L.Max

After L.Max

Meet L Max, your 30 second routine to breathe easier all day.

With one deep inhale, the buildup that’s been throttling your airways starts to clear.

What happens when you use L Max daily:

Clearer airways: Mucus collected in the small airways loosens and clears.
More air: Natural bronchodilators create space for efficient airflow and oxygen exchange.
Soothes irritation: Eases low-grade inflammation that accumulates with heavy training.

One inhale clears 55% more mucus and keeps airways clear for 8 hours.

Mount Sinai in-vivo study

Developed with researchers at Mount Sinai Medical Center (Miami) and validated across 10+ independent studies that recreated real-world airway buildup from pollution, allergens, and heavy training.

A 5-week controlled study of endurance athletes using L Max daily found:

98% athletes reporting easier breathing during Zone 3+ workouts
80% athletes who saw HRV improvements

Scientifically Validated

Manufactured in NSF Facilities

Third-Party Toxicity Tested

WADA-Compliant Ingredients

Scientifically Validated

Manufactured in NSF Facilities

Third-Party Toxicity Tested

WADA-Compliant Ingredients

Scientifically Validated

Manufactured in NSF Facilities

Third-Party Toxicity Tested

WADA-Compliant Ingredients

This isn’t medicine.
It’s maintenance.

You don’t need to have asthma to have airway buildup.

Most athletes who try L Max don’t have a breathing condition—they’re just high performers curious if their airways could be clearer. Just like mobility work is prehab for your joints, L Max delivers proactive support for your lungs.

“When I think of a product like L Max, it’s not that I view it as my lungs holding me back — it’s that they could perform much better.”

— Jonathan Hershman, Athlete & L Max Tester

Why 3,000+ endurance athletes choose L Max

“The most amazing breakthrough in performance after a lifetime of suffering and a 4-year effort to really target lung function improvement.”

James B.

Cyclist & Exercise-Induced Asthmatic

“PR’d my half marathon by 8 minutes on an extremely hilly route — going into it post a 30-minute bike ride for brick training.”

Kayla H.

Runner, Cyclist & CrossFit Athlete

“It has definitely become easier to breathe in Zone 3 and 4 since starting L Max. I feel like I’ve been able to push myself through shortness of breath that I wouldn’t be able to before.”

Kelsey B.

Runner

“On Thursdays I have a hard track session then go to a pool with bad air quality. I’m usually coughing badly by the end of the set — it almost always affects my second run of the day. I had zero coughing and no issues during the last session.”

Matt Hanson

Professional Triathlete & Coach | 6x Ironman / 6x 70.3 Champion