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Spöretz Probiotic- Bacillus Subtilis MB40

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Spöretz MB40 is a spore-based probiotic formula made for combat sport athletes, grapplers, wrestlers, and fighters who train in high-contact environments.

It features Bacillus subtilis MB40, also known as WelBac™ 40 / Sporevia, a clinically studied spore-forming probiotic strain designed to survive stomach acid and support gut balance, normal immune function, and skin barrier health from the inside.

Instead of relying only on soaps, sprays, and external hygiene, Spöretz supports the internal side of the gut–skin–immune connection — so your body is better prepared for hard training blocks.

What's inside
Serving size: 2 capsules30 servings per bottle
Ingredient Per serving
Berberine HCl from Berberis 200 mg
Garlic Extract 1% allicin 200 mg
Oregano Oil Powder min. 70% carvacrol 100 mg
WelBac™ 40 Bacillus subtilis 10 billion CFU 100 mg
Bacillus subtilis 5 billion CFU 50 mg
BioPerine® black pepper extract 5 mg
* Daily Value not established.
Other ingredients: Inulin (prebiotic fiber), Vegetable Cellulose (capsule), Rice Flour.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Frequently asked questions
What is Spöretz MB40?

Spöretz MB40 is a spore-based probiotic made with Bacillus subtilis MB40, formulated for combat-sport athletes. It's designed to support a balanced gut microbiome, healthy immune function, and skin health from the inside out. Each bottle has 60 shelf-stable vegetable capsules — a full month at the two-a-day serving. The complete ingredient breakdown and milligram amounts are in the "What's inside" panel above.

Who is Spöretz MB40 for?

It's built for grapplers and combat-sport athletes — BJJ, wrestling, MMA, and judo — who train in close-contact environments and want to support their skin, gut, and immune health beyond soaps and sprays.

Why Bacillus subtilis MB40 for Fighters?

Bacillus subtilis is a hardy, spore-forming probiotic strain that survives stomach acid and room-temperature storage, so it fits a gym-bag lifestyle.

It supports a balanced gut microbiome, which is connected to skin and immune health through the gut–skin axis, something that grapplers and fighters desperately need.

How do you take Spöretz MB40? Why two capsules?

Most people ramp up gradually over 3 Weeks

Week 1: One capsule every other day, then
Week 2: one daily
Week 3: two daily as a full serving. It is recommended to take it with food.

Once habituated, you can continue to take it twice daily (ideally one per meal)

Talk to your healthcare provider before starting any new supplement.

Is Spöretz MB40 third-party lab tested?

Yes. Every batch is tested by an independent, third-party lab for potency and purity. View the latest lab results (PDF).

Does Spöretz MB40 need refrigeration?

No. The Bacillus subtilis MB40 strain is spore-based and shelf-stable, so it survives at room temperature and travels well.

Where does Spöretz ship from?

Spöretz ships from Canada, serving customers across Canada and the United States with free shipping on orders over $100.

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BECOME ANTIFRAGILE
Grappler resting ringside in a white Spöretz tee, holding the MB40 bottle, black-and-white Black-and-white photo of an athlete in a white Spöretz tee drinking from the MB40 bottle

A Gut-First Approach to Immune Strength, Clear Skin, and Athletic Resilience

PROBABLY, NOBODY TOLD YOU THIS, BUT...

YOUR GUT IS MAKING YOU TAP-OUT

You train hard.
You play hard.
You think you recover smart, but your gut hasn't been performing, and it is leaving a mark on your body.

You feel bloated, foggy, inflamed, and off-rhythm.

First, you feel run-down — then your training slips.

Leaving you more prone to fatigue and time off the mats.

All this has to do with the bacteria that's in your gut.

When bad bacteria overtake your body, we call this ...

DYSBIOSIS.

BAD BACTERIA IN THE GUT (DYSBIOSIS) CAN LEAD TO...

WEAK IMMUNE SYSTEM

About 70% of your immune system lives in your gut.


It’s always in contact with gut bacteria, acting like a security guard watching who comes and goes.

Bad bacteria release toxins that stress the immune system. The gut wall can become “leaky” (called leaky gut) and let harmful particles into the bloodstream. The immune system starts fighting all the time — like it’s stuck in “attack mode”. This can lead to chronic inflammation, fatigue, allergies, and even auto-immune reactions

POOR SKIN HEALTH

Chronic inflammation from bad gut bacteria affects the skin’s outer layer (stratum corneum), which acts like a shield.

This weakens the skin barrier by reducing important components like:

  • Ceramides (natural fats that keep skin waterproof)
  • Antimicrobial peptides (proteins that defend against harmful microbes)

A damaged skin barrier means more dryness, micro-cracks, and loss of protective oils. This creates the perfect environment for bad bacteria (like Staphylococcus aureus) or fungi to invade.

BLOATING AND GI ISSUES

Harmful or overgrown bacteria can ferment undigested food, especially carbs and fibers, creating gas (like hydrogen, methane, or CO₂).

More gas = more bloating, which makes the gut lining more sensitive to even normal amounts of gas.

It is tough to perform at your best when your gut is constantly hurting from the pressure inside of it.

EXTREME FATIGUE

Healthy gut bacteria help break down food and absorb nutrients like iron, magnesium, B vitamins, and amino acids, which are essential for energy and muscle function.

When dysbiosis disrupts this process, your body gets less fuel — leading to chronic fatigue and slower recovery.

As well, your immune system uses a lot of energy to fight constant low-grade inflammation, leaving less energy for movement, thinking, and daily activities.

WEAK PERFORMANCE & INJURY

A healthy gut supports mitochondria (your cells’ “power plants”) and helps clear metabolic waste like lactate.

Dysbiosis can slow this down, causing earlier muscle burn and reduced endurance.

A lack of gut-produced nutrients like collagen precursors and essential fatty acids can weaken tissues. Combined with inflammation, this:

  • Slows muscle repair
  • Decreases joint stability
  • Increases likelihood of strains, sprains, or overuse injuries
Three Spöretz MB40 probiotic bottles grouped together, white label, studio shot

INTRODUCING SPÖRETZ

A uniquely crafted formula to help balance healthy bacteria from inside-out. Get the right probiotic and prebiotic formula your body needs that helps you:

  • Support gut balance for smoother digestion and nutrient absorption*
  • Support a healthy skin barrier *
  • Reinforce immune health to stay consistent in your training block*
  • Recover faster by supporting a healthy inflammatory response*
  • Maintain mental clarity and physical readiness — even during high stress loads caused by dysbiosis*

Tired of being constantly off the mats? 

Spöretz helps you stay ready, stay sharp, and stay in the game.

Start Now

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.*

THE REASON YOU KEEP HAVING SKIN ISSUES IS BACTERIAL IMBALANCE.

Boxer in a white Spöretz shirt holding the MB40 probiotic bottle ringside, black-and-white photo

You shower after every training.

You clean the mats.

You spend a large amount of money on soaps and lotion, but nothing works.

That's because you are only addressing the bacterial imbalance outside your body, not inside your body.

Likewise, most solutions that claim to remove bad bacteria also disrupt good bacteria in the process.

When the gut microbiome is imbalanced from a lack of good bacteria—due to stress, poor diet, antibiotics, or illness—it may lead to an overgrowth of certain microbes, including potentially harmful ones.

These bacteria or their byproducts (like toxins) can then enter circulation or reach the skin surface. This can disrupt the skin’s natural microbial balance, possibly leading to more irritation, slower healing, or increased vulnerability to outside invaders.

While more research is still being done, some scientists believe this connection helps explain why skin issues sometimes persist even when hygiene appears to be under control.

HOW DOES SPÖRETZ WORK?

Spöretz uses a unique formulation of probiotic, prebiotics, and herbs designed to support a balanced gut microbiome.

Gets Through Your Stomach Without Dying in Transit

Most probiotics never make it past your stomach acid.

Spöretz uses spore-based probiotics called Bacillus subtilis MB40 that survive the trip — and start working where they’re actually needed: your small intestine instead of dying in your stomach acid.

Supports Balance Without Disrupting Your Gut

In NIH-supported research, Bacillus subtilis produces a natural compound (fengycin) studied for how it interferes with the signaling Staphylococcus aureus uses to colonize. This is published mechanism research, shared for education — not a claim that Spöretz treats, prevents, or reduces any infection.

Compounds like garlic extract, oregano oil and berberine can help maintain a healthy microbial environment in the body.

Supports Stronger Immune System, Calmer Skin

Once your gut is stable, your immune system can take a break. Less overreacting = less skin freakouts. Your skin barrier's integrity supports the condition of your sport.

This means

Less redness or irritation,

Fewer flare-ups

Stronger skin that can handle real training

Why Choose Spöretz?

See how we compare to other probiotics

Features Spöretz
BUILT FOR COMBAT SPORT
Other Bacillus Probiotic Brand Generic Probiotic Brand
Produces a Studied Natural Compound
Clinically Studied Strain
Effective Custom Formulation Specific to Combat Sport Athletes
No Refrigeration Required
Third-Party Tested custom custom
Money-Back Guarantee

INGREDIENTS

3D rendered illustration of rod-shaped Bacillus subtilis MB40 bacteria, dark background

BACILLUS SUBTILIS MB40 (WelBac™ 40)

Bacillus subtilis supports a balanced intestinal environment and plays a role in maintaining healthy digestion and immune function. Its spore-based nature allows for long shelf life and stability without refrigeration.

What to expect over time

Changing your microbiome without antibiotics is like going to the gym without steroids.

The most resilient things in nature take time.

Here is an expected timeline of consistent use of Spöretz

Supporting product image
  1. WEEK 1

    YOUR STOMACH IS WARMING UP,YOUR TOILET SEAT AS WELL

    Gut health transformations happen at different speeds—some notice changes right away, while others experience gradual shifts over time.

    Our blend of garlic, oregano, and berberine works to support a balanced microbiome and promote natural regularity, helping you feel the difference from within.

  2. WEEK 2

    YOU'VE PREPARED THE BATTLEGROUND, NOW IT IS TIME TO WIN THE FIGHT

    You've built up from one pill every other day to taking one daily.

    You're at the halfway point to your full dose, and your body is already showing results. Notice the difference—less bloating, smoother digestion, easier movement. You're on track.

  3. WEEK 3

    YOU'VE WON THE FIGHT, NOW IT'S TIME TO REPAIR THE FORT

    You've reached the full dose. Your probiotics are now working to support your gut lining with inulin's assistance. This marks the beginning of building resilience in your digestive system.

    Consistency is key. Continue supplying Bacillus Subtilis regularly to maintain its benefits. Since Bacillus is a transient microbe, it doesn't permanently settle in your intestines—ongoing use ensures continuous support.

  4. MONTH 1

    YOU ARE BECOMING YOU AGAIN

    With harmful bacteria managed, your body redirects energy away from fighting inflammation and towards peak athletic performance. Experience improved endurance, sharper reflexes, and a noticeably lighter stride.

  5. MONTH 2

    YOU ARE BECOMING A BETTER YOU

    As your gut microbiome flourishes, you unlock a cascade of benefits beyond digestion. The beneficial bacteria you've cultivated now support your energy levels, sleep quality, emotional balance, and mental clarity. You'll notice a calmer mind, sharper focus, and a greater sense of groundedness in your daily life.

  6. MONTH 3

    THE PATH TO BECOMING ANTIFRAGILE

    Your beneficial bacteria have established a protective biofilm. To stay ahead, replenish your probiotic levels daily through supplementation and foods rich in prebiotics and postbiotics. This foundation supports your overall wellness and athletic performance.

READY TO TAKE YOUR HEALTH TO THE NEXT LEVEL

TRY NOW
Three Spöretz MB40 probiotic bottles grouped together, white label, studio shot

3 Month Money-Back Guarantee

Try Spöretz™ today and take back the control of your health.

This purchase is Risk-Free because it’s covered by our 3 Month Money-Back Guarantee:

If at any time in the first 3 months of your purchase you aren’t completely satisfied, we’ll refund 100% of the purchase price.

Feel confident giving Spöretz™ a try and reach the level of health you deserve.

Try Spöretz Today

FAQ

Is it 3rd party lab tested

Yes. Every batch is tested by an independent, third-party lab for potency and purity. View the latest lab results (PDF).

What is the best time to take Spöretz?

You should take it next to a meal and spread it between morning and afternoon.

If I have a medical condition, can I take Spöretz?

Consult you healthcare practitioner if you have a medical condition.

What are the shipping costs?

We offer fast and reliable shipping to get your supplement to you quickly. Shipping costs are calculated based on your location and will be clearly displayed before checkout.

Research and Citations

Piewngam P., et al. Probiotic for pathogen-specific Staphylococcus aureus decolonisation in Thailand: phase 2 trial. The Lancet Microbe (2023). DOI: 10.1016/S2666-5247(22)00322-6 :https://www.thelancet.com/journals/lanmic/article/PIIS2666-5247(22)00322-6/fulltext

NIH. NIH study finds probiotic Bacillus reduces staphylococcus colonization (2023). :https://www.nih.gov/news-events/news-releases/nih-study-finds-probiotic-bacillus-eliminates-staphylococcus-bacteria