Asked & Answered

Find the most frequently asked questions below

resB® targets the gut-lung axis with a combination for clinically studied probiotic strains and bioactive botanicals. The probiotic strains in resB® have been clinically studied for their gut, lung, and immune benefits. Curcuma longa (turmeric), Ocimum sanctum (holy basil), and Adhatoda vasica (vasaka) leaf extracts were added for their antioxidant and respiratory supportive properties, as well as their role in supporting a healthy inflammatory response. The complete formula has been shown to support lung structure and function in preclinical and clinical studies. Some benefits include:

Enhance airway & lung health to breathe easy*

Helps in clearing mucus*

Naturally minimizes coughing*

Seasonal sinus & bronchial support*

Improves pulmonary structure & function*

Improves digestion and gut health*

Improves immune health*

Better sleep due to better breathing*

resB® Lung Support contains a unique combination of probiotic strains and botanicals, formulated by physician scientists based on over a decade of research on the gut-lung axis.

The scientists behind ResBiotic® developed and tested probiotic strains independently, as a blend, and in combination with bioactive botanicals to arrive at the optimal formulation for resB® Lung Support.

That formula is precision blended in a cGMP environment by FDA-certified suppliers, 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 Unity) count in every capsule, every time.

resB® was designed based on over 10 years of rigorous research, to support healthy respiratory structure and function, healthy digestion and to boost immune system, while keeping everyone in mind.

Our ingredients and products have been studied extensively in many settings, including actual physician supervised pre-clinical and clinical trials, in specific conditions!

With that said, no supplement can make claims regarding any specific disease diagnosis. We recommend that you check with your doctor or pharmacist before starting any new dietary supplement.

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

resB® is a top physician recommended, physician formulated supplement for continuous respiratory care. Several customers use resB® for chronic regulation of respiratory structure and function, in addition to cough relief, lung detox and mucus relief.

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.

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.

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. This is to ensure your antibiotic doesn't kill the probiotic bacteria in resB® before they have a chance to work!

resB® was also created with smokers and their lung health in mind. Our clinical trials included smokers who developed lung problems such as asthma, COPD. We strongly encourage smokers to try quitting smoking to take control of their lung health.

All of resB® Lung Support’s ingredients are listed on the bottle. You can also read ingredient details on our product page, or direct any specific ingredient questions to our support team at

Product Details

Some GI discomfort can occur when taking probiotics, but these typically resolve within 2 weeks. Please consult a healthcare professional if symptoms worsen or persist.

If you are pregnant or breastfeeding, we recommend consulting your physician before taking resB® Lung Support.

You can take resB® Lung Support with or without food. If you miss a dose, just take two capsules the next time. The key is consistent daily use. You can read more about that here.

resB® Lung Support is manufactured in GMP-certified and FDA-registered facilities, right here in the USA.

Probiotics are living microorganisms, so we do recommend refrigerating resB® Lung Support after opening, and always storing it in a cool, dry place.

That said, third-party stability testing confirms that resB® can be stored at room temperature (77° F) for months without loss of potency.

resB® Lung Support contains live probiotic bacteria strains that have been tested for survivability. Key tests include acid tolerance, bile salt tolerance, pepsin resistance, pancreatin resistance, and adhesion to the human intestinal mucosa.

Translation: We made sure they'll stay alive, and get where they need to go.

While it's not required to take a prebiotic with resB® Lung Support, many people find prebiotics beneficial. You can learn more about this topic, including common foods that contain high quantities of prebiotic fiber,in this blog post.

Shipping and Fulfillment

No promo code necessary! We offer free standard shipping on every order!

The turnaround time for free standard shipping is within 3-5 business days. You may purchase expedited shipping if you need your order to arrive in 2 business days. If you are setting up a subscription order and need express shipping please contact or give us a call at 667.225.3648.

Keep in mind: packages can be marked delivered 24-48 hours before they are physically delivered. If you do not receive your package within 48 hours of being marked delivered, you can file a claim here or contact our Customer Experience Team at customers.

We will never make you pay for something you never received! You have 14 days to report a missing package to us. You can also add Route Package Protection to your order starting at $1 to ensure safe and on-time deliveries. Please contact our support team at with any questions!


We currently only ship domestically within the U.S. International shipping is not available at this time. Check back soon!

While in transit to your location, your product may undergo fluctuations in temperature. This is perfectly normal! Third-party stability testing confirms that resB® can be stored at room temperature for up to 3 months without loss of potency. Like most perishable products, it is best to keep your product refrigerated after opening. Keep in mind, that if you accidentally leave resB® out on the counter or are taking it on a long flight, rest assured that resB® will maintain its high potency and stability.

Payment Questions

ResBiotic prides itself in following all tax laws. Certain municipalities require sales tax to be charged to customers. If you live in one of the locations applicable for sales tax on ResBiotic sales, our system will automatically associate the correct tax. If you are not charged sales tax, be sure to check with your state about Use Tax laws.

We offer multiple payment avenues including all major credit cards, Apple Pay, Facebook Pay, and Google Pay. 

Exciting news - we’ve partnered with TrueMed to allow you to use your Health Savings Account (HSA) or Flexible Spending Account (FSA) at Nordica This means you can buy our products with pre-tax dollars, resulting in net savings of 30-40%.

How does it work? The process is simple - we’ll send you reimbursement instructions right after payment.

How do I qualify for TrueMed HSA/FSA reimbursement?

1. Get Pre-Qualified on your item's product page by selecting the "Get Pre-Qualified" link.

2. If TrueMed determines that ResBiotic products can help prevent or reverse a health condition you care about (making it eligible for HSA/FSA), they will send you a Letter of Medical Necessity (LMN).

3. Once you are approved, just submit the receipts for this and all future ResBiotic orders with your LMN to your HSA/FSA provider for reimbursement. TrueMed will send instructions to get reimbursed and their customer support team will be available to assist. 

We also offer ShopPay. Use ShopPay to set yourself up for speedy and secure checkouts. When you enter your information with ShopPay, it will be saved for future use. ShopPay will text you a security code to make sure you are the one checking out every time. 

Last but not least, ShopPay gives you the option to “pay later”  through Affirm. This way you don’t have to pay upfront and instead your order will be divided into 4 interest-free installments. Please note that this option is not available for subscription orders.

Setting up a subscription not only saves you money but is an easy way to make sure you are staying consistent with your resB®. We offer monthly and quarterly subscriptions. You can access your account at any time to pause, skip, or cancel your subscription.

We do not store credit card information in our databases. Subscription customers will save their payment details to enable automated billing through Recharge. Customers may also utilize Paypal or ShopPay services that have their own terms and conditions concerning payment details.

Limited Time Offers & Promotion Questions

trial for free with any subscription purchase. First, you’ll purchase a subscription of prebeet® directly on the ResBiotic website ( When you add the subscription to your cart, you’ll notice that a 30-day supply will be discounted from your cart. You’ll have a month to experience the benefits of natural energy, less bloat, daily poops, healthy skin, and a stronger heart. After 30 days, your subscription will automatically ship at a 15% discount forever! Modify or cancel anytime. If you need further support, please message us at

There is no need to return if you do not like the free trial product. Feel free to gift it or toss it with no hard feelings. Modify (pause/skip/cancel) your free trial subscription anytime. No questions asked!

Click here to log in to your subscription portal; you can modify (pause, skip, or cancel) your next subscription order anytime. If you need any support, please send us a message at

Yes! The shaker bottle is dishwasher-friendly and BHA-free.

Yes! Within your cart, you’ll see options to purchase additional accessories, including the shaker bottles.

If you did not receive an expected item with your eligible order, please contact our customer experience team at

No. We are confident that you will love prebeet. Hence we ship every order, including the free trial, absolutely free.

prebeet® ENERGY+ utilizes clinically-studied ingredients to support gut and whole body restoration. The benefits include: 

✓ Energy boost that improves stamina and physical performance without stimulants such as caffeine or sugar*

✓ Improved GI discomfort, reducing bloat and gas*

✓ Enriches beneficial gut microbiome such as Bifidobacterium and Akkermansia*

✓ Supports healthy skin by decreasing collagen breakdown & supporting collagen integrity*

✓ Supports heart & circulatory health with improvement in blood flow and circulation*

✓ prebeet® can be used as an introductory or maintenance fiber for GI* recovery and is suitable for special diets like low FODMAP*

✓ Supports nervous system and brain cell function*

✓ Supports conversion of food into cellular energy*

✓ Backed by clinical trials and scientific research