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A Message From Dr. Will Cole

Your Bloat Isn't Random. It's a Loop.

Doctors call it the gut-hormone loop. You just call it the 6pm belly. Here's how it works, and how to finally break it.

Here's a sentence most women never hear from anyone: not from the internet, not from the diet apps, and often not even at the doctor's office. The bloat that showed up, or got worse, in your late 30s and 40s usually isn't caused by what you're eating.

It's a loop between your hormones and your gut.

Until you address the loop, no food list will fix it.

Let's break down how it works. Once you see it, everything about your "random" bloat starts making sense.

The Loop, Step by Step

Your gut is home to trillions of bacteria with two jobs. Job one is digestion: breaking food down, keeping things moving, keeping gas and puffiness in check. Job two is the one that matters here: a specific community of those bacteria, researchers call it the estrobolome, helps your body process and clear estrogen.

Now add time. Starting in your late 30s and accelerating through your 40s and 50s, hormone levels begin to shift. Those shifts change the environment your gut bacteria live in, so the makeup of your microbiome changes with them. And here's where the loop closes: as those bacteria fall out of balance, they do both jobs worse. Digestion slows and gets gassier: hello, 6pm belly. And estrogen gets processed less efficiently, which feeds back into the very hormone shifts that started the problem.

That's the loop. 1 Hormones shift 2 Gut bacteria change 3 Digestion and hormone processing suffer 4 Repeat

Enter Probiotic Trillion

The end of the loop you can actually reach, today, without a prescription, is the gut. And that's the end Dr. Will Cole, MD, founder of LongevityRx, built Probiotic Trillion to reach.

Restoring the Ecosystem, Layer by Layer.

Probiotic Trillion is a 4-in-1 formula that restores the ecosystem layer by layer.

Prebiotics feed your beneficial bacteria. Probiotics replenish them: 1 trillion CFUs, anchored by Bacillus subtilis AB-22, a spore-based strain rugged enough to survive stomach acid and arrive alive, plus Bifidobacterium longum, studied for bloating and the gut-brain connection. And parabiotics and postbiotics supply the finished bioactive compounds a stressed gut is slow to produce on its own.

That's why support is designed to be felt in as little as 45 minutes, not months.

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Probiotic Trillion

Probiotic Trillion

Repair your gut and calm inflammation with Probiotic Trillion, a 4-in-1 gut health formula featuring prebiotics, probiotics, postbiotics, and parabiotics. Powered by fast-acting spore-based strains like Bacillus subtilis AB-22, it helps reduce inflammation, restore gut lining integrity, and support immune resilience.

  • Regulates bowel movements
  • Repairs gut lining
  • Boost Immune system
  • 4-in-1 Gut Formula

FREE Shipping, always · 30-Day Money-back Guarantee · Third-party tested

What to Expect, By the Calendar

What does that look like day to day?

Week 1
Less gas and heaviness after meals
2 Weeks
Digestion gets smoother and more predictable
1 Month
Regularity and nutrient breakdown improve
3+ Months
A rebalanced, resilient ecosystem: the loop, interrupted

The Results Women Report

In a survey of 235 LongevityRx members:

82% Reported improved digestion and regularity
79% Felt less bloated and more comfortable after meals
78% Noticed a boost in mood and mental well-being
Third-Party Tested GMP-Certified FDA-Registered Facility No Fillers or Artificial Additives

*Self-perceived efficacy survey of 235 LongevityRx members. 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.

Want to Support Even More of the Loop?

Estrogen doesn't just decline as you age, it depends on your gut to clear it efficiently. Your liver tags estrogen for removal, then hands it to your gut, where bacteria either help it exit for good or let it recirculate. That's the loop, and it runs on more than just bacteria.

Liv120 supports the rest of it. Fermented Blue Turmeric helps calm the inflammation that keeps a stressed gut lining from doing its job. Fermented Red Mulberry shields cells from the wear of that same stress while keeping blood sugar steady and digestion moving, both of which decide how well the loop actually runs day to day.

Soursop, rich in minerals and B and C vitamins, keeps the immune system that patrols your gut lining resilient, while Noni promotes gut-brain balance directly, aiding digestion, steadying blood sugar, and supporting the kind of full-body performance that a stressed loop quietly drains. And Organic Pomegranates keep circulation strong enough to carry everything the gut and liver produce where it needs to go.

Probiotic Trillion restocks the bacteria running the loop. Liv120 supports everything around them, the lining they live in, the circulation that serves them, and the resilience that keeps the whole system working. Two supplements, one loop, running together.

The Total Gut Reset Duo

Liv120 in the morning, Probiotic Trillion at lunch, when food helps shield its spore-based strains through digestion, two habits covering both sides of the loop instead of one. Together, they're available as the Total Gut Reset Duo.

Total Gut Reset Duo, Liv120 and Probiotic Trillion
Total Gut Reset Duo

Break the loop from both ends

Liv120 + Probiotic Trillion, your complete gut-liver reset.

  • 4-in-1 biotic formula: prebiotics, probiotics, postbiotics, parabiotics
  • Spore-based Bacillus subtilis AB-22, built to survive stomach acid
  • Fermented Blue Turmeric, Fermented Red Mulberry, Soursop, Noni, and Organic Pomegranates for the gut-liver connection
  • Doctor-formulated. Third-party tested.
$125.39 $152.92

Subscribe & Save: 18% off, every order

Dr. Will Cole, MD

About the Author

Dr. Will Cole, MD

Functional Medicine Practitioner

Dr. Will Cole is a leading functional medicine practitioner who works to find the root cause of fatigue, inflammation, and hormone imbalance. After reviewing thousands of genetic profiles in his clinic, he formulated MitoMultiply for Longevity Rx to give the body the methylated nutrients it can actually use.

Explore Dr. Cole's Cognitive Bundle

Frequently Asked Questions

How is Probiotic Trillion different from a grocery-store probiotic?

Standard probiotics attack the right end badly: most strains are destroyed by stomach acid before they ever reach your gut, which is why so many women say probiotics "do nothing" for them. Probiotic Trillion is anchored by Bacillus subtilis AB-22, a spore-based strain rugged enough to survive stomach acid and arrive alive, plus Bifidobacterium longum and a full 4-in-1 formula: prebiotics, probiotics, parabiotics, and postbiotics.

How long before I notice a difference?

Support is designed to be felt in as little as 45 minutes. Most women notice less gas and heaviness within the first week, smoother and more predictable digestion by two weeks, and better regularity by a month. From three months on, the goal is a fully rebalanced, resilient ecosystem doing both of its jobs again.

How do I take it?

One capsule a day.

How should I store it?

No refrigeration necessary.

Is it tested and manufactured safely?

Yes. Every batch is third-party tested and made in the USA in GMP-certified, FDA-registered facilities, with no fillers or artificial additives.

Probiotic Trillion, capsule and glass of water

Your Bloat Didn't Change. Your Hormones Did.

Break the loop at the end you can reach. Right now, start with 30% off your first subscription of Probiotic Trillion.

$69.97 $99.95

Subscribe & Save 30% today, 15% ongoing. Cancel anytime.

FREE Shipping, always · 30-Day Money-back Guarantee

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.