25% Off + Free Shipping on Orders $75+ 💸 Bundle Top Doctor-Recommended Pre/Probiotic Supplements to Save More Sitewide! prebeet® ENERGY + Just Arrived 🎁 Free Gift at Checkout

The Probiotic that Goes the Extra Mile

Doctor-developed formula to optimize digestion, lung health, and immunity*
Clinically studied ingredients and product
Natural, Allergen Free, & Made in the USA
This purchase unlocks a year of free access to Breathwrk Pro
Multi-strain Probiotic Blend

Lactiplantiplantibacillus plantarum RSB11™
Lactobacillus acidophilus RSB12™
Lacticaseibacillus rhamnosus RSB13™

Bioactive Botanicals

Vasaka (Adhatoda vasica) leaf extract
Holy Basil (Ocimum sanctum) leaf extract
Turmeric (Curcuma longa) root extract

Breathwrk Access

Follow the instructions in your resB® confirmation email to unlock hundreds of unique breathing exercises. Free for all ResBiotic® customers, while supplies last.

How it Works

  • Activate your Gut-Lung Axis,
    so you can feel healthier and breathe easier.*
    The probiotic bacteria in resB® have been known to produce specific short chain fatty acids that support digestive health directly and travel through systemic circulation to support respiratory health and performance.*

    The Gut-Immune Connection
    Did you know 70% of your immune cells live in your gut? The probiotic bacteria and botanicals in resB® have also been clinically studied for their immune supportive benefits.*

  • Support Your Lungs in More Ways Than One
    Unlock Breathwrk Pro to access science backed breathing exercises for Clear Lungs, Stuffy Nose, Curb Cravings, and more.

    Your resB® Order Confirmation emails will include redemption instructions for your free year of Breathwrk Pro membership.
    Double down on breathing benefits by making Breathwrk exercises a reminder for your twice-daily resB® dose.

What People are Saying

  • ★★★★★

    “It has been so beneficial for everything - from helping with my daily running to allergies and everything else!”

  • ★★★★★

    “Was nervous about the size of the pill because other probiotics tend to be large, but was pleasantly suprised it's about the size of a tylenol!”

  • ★★★★★

    “It worked within a few days. Coughing suppressed, and after a week, no more cough!”

  • ★★★★★

    “I'm a marijuana smoker and don't think that's going to change. I felt like this helped mitigate a lot of the negative effects of my behavior.”


Asked & Answered

Find the most frequently asked questions below.

Anyone 18+ who wants to prioritize their gut, lung, and immune health!

While people often report gut health benefits as early as their first week, systemic benefits of probiotics can take longer.* 

Some of our customers report breathing benefits within 6 days, others after 60. This variability can be attributed to a number of factors, including the importance of continuous daily use and the reality that some of us constantly think about our lungs while others breathe without much thought.

resB® Lung Support is precision blended in a cGMP environment and FDA-registered facilities, right here in the USA.

The formula is specifically processed for extended stability and longevity, rigorously tested for the most stringent quality, purity, and safety measures, and delivered through a temperature-controlled supply chain to ensure a research-backed CFU (Colony Forming Unit) count in every capsule, every time.

While there are no known contraindications with resB® Lung Support and any over-the-counter or prescription medications, we encourage you to check in with your prescribing physician before adding new products to your regimen.

Additionally, if you are taking an antibiotic, take resB® at least 1 to 2 hours before or after your antibiotic dose.

We stand behind our products and proudly offer a 30-day money-back guarantee on your first purchase. You can read more about our return policy here.

Standard shipping is always free at ResBiotic! You can also choose expedited shipping at checkout, for a small fee.

  • Better Together: Breathwrk and ResBiotic Team Up for Greater Benefits

    "Breathwrk is so popular because it offers a comprehensive library of science-based breathing exercises for people of all levels.  Moreover, they also provide guided classes and educational content.  It’s a one-stop shop for all things breathing."

    - Nick Heath, PhD

  • Habit Stack Breathwrk + resB®

    "If you’re trying to build a healthier, more fulfilling life, you may have wondered: Are there any proven tools for making consistent positive changes that will get me closer to my goals? 

    The answer is yes, and the biggest one is habit stacking. This method combines things you’re already doing with what you wish you were doing. The result is that you effortlessly build the life you want..."

    - Nick Heath, PhD