In a 90-day IBS trial, Bacillus coagulans significantly reduced bloating, diarrhea, abdominal pain, and stool frequency versus placebo.
Read the 2016 study in Nutrition Journal
20B CFU Probiotic
The Shield
Five-star reviews
The Shield is a 13-strain, 20 billion CFU probiotic built for real microbiome diversity and immune support. Think of it as daily reinforcement for your gut lining.
$29.99Trending
30-day supply. Subscribe & save 15%, delivered monthly. Pause or cancel anytime.
1
30-day supply per unit$25.49/mo$29.99SAVE 15%
Just $0.85/day $1.00/day
Your first order includes
- ✓Free Gut Reset Guide (digital)
- ✓Free shipping, always
- ✓Cancel or skip anytime
One-time $29.99 ($1.00/day) — subscribe to save 15% + free Gut Reset Guide
Try it risk-free for 60 days
Give it an honest run. If you don't feel better about your gut, we'll refund you, even if the bottle is empty. No forms, no runaround.
- Clinically Studied Ingredients
- Built to Survive Digestion
- No Fillers, No BS
- GMP-Certified Manufacturing
Backed by published research
The ingredients in this formula are studied in 1 peer-reviewed publication. See the research
BALANCE | IMMUNITY | 20 BILLION CFU
Reinforcements for your gut.
Thirteen strains, twenty billion CFU, delivered every single day.
A healthy microbiome is a varied one. The Shield covers eight Lactobacillus and five Bifidobacterium strains instead of betting everything on a single culture.
Around 70 percent of your immune system sits in your gut. Reinforcing the good bacteria there is daily maintenance for your body's front line.
A meaningful daily dose without megadose gimmicks. Twenty billion colony-forming units arrive with every capsule.
A balanced microbiome shows up as fewer swings: less bloating, steadier bathroom habits, a gut that just behaves.
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60-Day Money-Back Guarantee
Our standards
Every bottle is produced in a GMP-certified, FDA-registered facility and tested before it ships. What the label says is what the capsule holds.
GMP-Certified Facility
Made in the USA
Third-Party Tested
No Artificial Fillers
WHAT'S INSIDE
Ingredients come first.
The working ingredients, with exact doses on the label. Nothing else.
Lactobacillus family
8 of 13 strains
The workhorse cultures found in kefir and yogurt, from L. acidophilus to L. rhamnosus.
Bifidobacterium family
5 of 13 strains
The deep-gut residents, including B. longum and B. lactis, that thin out with age and stress.
Built to arrive alive
Delivery
Strains selected to survive stomach acid, the same reason fermented foods work.
20 billion CFU
Daily dose
Every capsule carries twenty billion colony-forming units of live, ready-to-work cultures.
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60-Day Money-Back Guarantee
THE PROOF
Backed by published research.
The strongest findings from the human studies behind these ingredients, straight from the journals that ran them.
Peer-reviewed & published in
PubMedNutrition JournalResearch cited is on individual ingredients, not on finished Stillbelly products. These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease. Full research library.
QUICK | EASY | DAILY
Daily routine, made easy.
- 1
Take 1 capsule with 6 to 8 oz of water.
- 2
Same time every day works best. Mornings are easiest to remember.
- 3
One bottle is a full 30-day supply.
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60-Day Money-Back Guarantee
Common questions
The Shield, answered.
How many probiotic strains does The Shield have?
Thirteen strains, spanning eight Lactobacillus and five Bifidobacterium cultures, at 20 billion CFU per capsule. Diversity is the point: most probiotics lean on just one or two strains.
Does it need to be refrigerated?
No. Take one capsule daily with 6 to 8 oz of water and store it in a cool, dry place. One bottle is a 30-day supply.
When is the best time to take it?
Consistency matters more than the exact time. Most people take it in the morning with water because it is easiest to remember.
Is the capsule vegetarian?
Yes. The capsule is cellulose (vegetable) with brown rice flour as the only other ingredient.
From the Journal
The science behind it, in plain English
Better Together
Make it the whole system.
The Spark, The Shield, The Quick Fix, and The Cleanse cover digestion from every angle. Bundle all four and save about $20, or subscribe for 15% off with free shipping on every order.
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The Shield
$25.49/mo subscribed
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