BDR

BDR is a gastroenterologist-formulated, evidence-based dual-stage capsule for adults living with occasional bloating, gut discomfort, and digestive sensitivity. Two clinically studied ingredients — peppermint oil and ibSium® Probiotic — combined for the first time and delivered to different regions of the gut: fast-acting relief and lasting resilience.

Two ingredients, delivered in two places, at two speeds. Peppermint oil (43% Menthol) is released in the small intestine and calms spasm and discomfort, working fast. ibSium® Probiotic is released toward the colon and builds gut resilience and rhythm over weeks. A dual-stage cap-in-cap capsule delivers each ingredient where it works.

Both core ingredients are backed by clinical research. Peppermint oil has been studied in multiple clinical trials for gut comfort and calming spasm, and ibSium® Probiotic is a clinically studied yeast researched for its effects on bloating and regularity. BDR™ was formulated by practicing gastroenterologist Dr. Will Bulsiewicz, who set the bar at what the evidence supports.* 

Read more about the science

Location and dose matter. Standard capsules release at one site; BDR™'s acid-resistant outer capsule targets the small intestine and pairs a second ingredient working further down. Same ingredient class, fundamentally different delivery.

BDR™ isn't a probiotic product. Its ibSium® Probiotic component is a clinically studied yeast, not a bacterial blend — different organism, different mechanism, different job.

Different jobs. DMN® is foundational daily microbiome nutrition; BDR™ is targeted relief for when your gut needs it.

Yes. BDR™ can be taken together with RCE™. If bloating is being driven by occasional constipation, addressing the constipation first usually clears the bloating on its own. BDR™ is there for bloating and discomfort relief, ideally with DMN® building the microbiome underneath.

BDR™ isn't formulated with GLP-1 medications specifically in mind. If you need help with occasional constipation, RCE™ was designed for exactly that - taken 20-30 minutes before your largest meal.

Start with one capsule, build to two if needed. BDR uses flexible dosing — anywhere from 1 to 6 capsules (3 x 2 capsule servings) per day, so you can scale to your symptoms. Because dosing is flexible, BDR works both as a daily routine and as something to reach for on bad gut days, after travel, or when a meal doesn't sit right.

Once the capsule reaches the small intestine, fast-acting relief is on the way — that's the peppermint oil calming spasm. The probiotic side works on a longer arc: benefits build over several weeks with consistent use.*

You may notice fast comfort early on from the peppermint oil, with more complete benefits — regularity, less bloating, better microbiome balance — building over several weeks of consistent daily use.*

No. BDR™ is shelf-stable and doesn't need a fridge — heat doesn't damage it. If a bottle sits in a hot mailbox, the product is still fine; the inner capsule protects the probiotic.

Either way works — keep it on hand for occasional bloating, or take it daily for ongoing support. Start with one capsule and increase to two if needed.

Most probiotics are bacteria in a standard capsule with no control over where they land. ibSium® Probiotic is a clinically studied yeast carried by an inner capsule further down the gut, closer to where it's effective.

30-capsule and 60-capsule bottles. The 30-count is the better fit for occasional, travel, or menstrual-cycle use; the 60-count suits daily support. 

One subscription option only: monthly (every 30 days). There is no 60- or 90-day subscription for BDR™.

If you want BDR™ delivered on the same schedule as your current subscription, it can be added to that subscription. If you want a different delivery interval, you'll need a separate BDR™ subscription — that's the only way to have two different delivery intervals.

We stand behind our science. If you’re not completely satisfied with your 38TERA® experience, we offer a 30-day money-back guarantee on your first order. To request a refund, please visit the 38TERA Returns Portal within 30 days of receiving your delivery. 

Please see our Help Center for full details.