SecondKind is translating the latest gut-brain research into something accessible for consumers.
Dr. Stuart Weinberger
★★★★★ 4.8/5 from 1,261 verified customers
- Vegan
- Non-GMO
- Doctor-Backed
- Clean Label & Third Party-Tested
- Clinically Studied Ingredients
Reset.For real this time.
Bloating. Low energy. Irregular digestion. Feeling off.
You just want to feel like yourself again. Lighter. More regular. More in rhythm.
Stop chasing symptoms. Start with the foundation: your gut.
- 90-Day Guarantee
- Free Shipping
- Doctor Recommended
Doctor Recommended
“The postbiotic in Gut Balance optimizes microbiome balance with results you can actually feel. It’s why I recommend SecondKind.”
Dr. Stuart Weinberger
MD, Gastroenterologist
92%1
of customers felt lighter within 2 weeks
30 days2
to supported bowel regularity
84 days3
to improved digestive comfort and quality of life, in a clinical study
¹ Based on a customer study.
² Clinically studied Totipro® supported bowel regularity in 30 days and promoted beneficial gut bacteria (Kuo et al., ISAPP poster; Lin et al., Journal of Pure and Applied Microbiology, 2022).
³ Clinically studied Bereum postbiotics significantly improved gastrointestinal symptoms, perceived stress, and digestive-related quality of life in an 84-day study (bereum Human Clinical Study Summary for beLP1® and EF-2001®).
Postbiotics are the most
direct support your gut can get.
Probiotics are meant to survive digestion to become postbiotics.
Probiotics are meant to survive digestion to become postbiotics, what truly helps you.
The hard truth?
The hard truth?
70%
of probiotics die during digestion.
70%
of probiotics die during digestion.
So why not take postbiotics directly?
The next generation of gut health starts with postbiotics.
They nourish and support your gut lining for a healthy gut and balanced digestive system.
They nourish and support your gut lining for a healthy gut and balanced digestive system. No fragile live bacteria. Just results.
Regularity
Debloat
Immune Support
Balanced Gut Microbiome
No fragile live bacteria. Just results.
Source: Based on a customer study; 84 day study - bereum Human Clinical Study Summary for beLP1® and EF-2001
Gut Balance
Powered by Postbiotics: the next generation of gut health.
Supports healthy digestion, less bloating, regularity & immune health.
Feel like yourself again.
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- Vegan
- Non-GMO
- Gluten-Free
- Doctor-Backed
- Clean Label & Third Party-Tested
- No Refrigeration Required
- Clinically Studied
- Made in the U.S.A.
Doctors are talking about Postbiotics.
SecondKind stands apart because it's postbiotic-first — finally, a solution that aligns with what the science tells us the body truly needs.
Dr. Nancy Lin
Postbiotics are emerging as a direct, bioavailable way to influence gut health and systemic balance.
Dr. Zachary Schwartz
Postbiotics skip the middleman — supporting a happier gut, stronger immunity, and better wellness from the inside out.
Sahar Berjis
This fundamental support strengthens physical health and helps manage stress, offering results you can actually feel.
Dr. Hyun Dong Shin
Your gut doesn't just digest food.
91%
OF SEROTONIN PRODUCTION
74%
OF YOUR IMMUNE SYSTEM
50%
OF DOPAMINE PRODUCTION
91%
OF SEROTONIN PRODUCTION
50%
OF DOPAMINE PRODUCTION
74%
OF YOUR IMMUNE SYSTEM
When your gut is off, everything is off.
Balance my gutWhole-Body Wellness
Starts in the Gut
Top Quality Postbiotics
Bereum®
Improved GI symptoms and digestive quality of life.
84-day human clinical study
EpiCor®
Cut cold and flu symptom days by 17%.
Urologic Nursing, 2008
Totipro®
Reduced bloating and supported bowel regularity in 30 days.
J. Pure & Applied Microbiology, 2022
Loved by People Like You
“I'd tried probiotics and honestly didn't notice much. A couple of weeks on the postbiotics and the bloating and gas are gone. Everything feels steady and regular.”
“On my third bottle and the difference is real. The bloating's gone, and my mornings are regular again instead of a guessing game.”
You deserve the truth.
| Category | Postbiotics (the harvest) |
Probiotics (the seeds) |
|---|---|---|
| Body-Ready & Usability | ||
| Digestive Comfort | ||
| Immunity | ||
| Clarity | ||
| Fast-Acting | ||
| Shelf-Stable | ||
| Whole-Body Wellness | ||
| Gut-Lining Support | * | |
| Potency | (Trillion) | (Billion) |
*Some prebiotics (via short-chain fatty acids) and certain probiotics strains may also support gut lining, but postbiotics provide the most direct and consistent benefit.
Stopguessing.
No morerandom pills.
No moreconfusing strains.
No morequick fixes.
Your 84-Day Reset
84-Day Gut Reset
Soothe → Strengthen → Sustain
There's no shortcut, your
commitment makes the
whole difference.
Month 1 – Soothe
Support less bloating, better digestion, and a more comfortable daily rhythm.
Month 2 – Strengthen
Build a more balanced microbiome with consistent daily Postbiotic support.
Month 3 – Sustain
Help make regularity, gut comfort, and whole-body balance feel less like a chase – and more like your new rhythm.
Our Family's Story
I didn't set out to build a supplement company. I was trying to help my wife –and myself– feel better.
When probiotics and endless wellness routines fell short, I discovered postbiotics: the beneficial compounds your body actually uses.
We created the formula for ourselves. When we felt the difference, SecondKind was born.
Born from empathy.
Built on science.
Made to help you feel like yourself again.
Founder of SecondKind
FAQ
Probiotics didn't work for me. Why would this?
You're not alone, and it's not on you. Probiotics are fragile and slow, and many never survive digestion. Postbiotics are the ready-to-use compounds those bacteria were supposed to make, delivered directly. Nothing has to survive or colonize first, so the impact is often felt faster.
What are postbiotics, exactly?
The active compounds created by good gut bacteria, the part your body actually uses. They don't need to survive stomach acid or colonize your gut, so they're ready to support gut comfort, regularity and whole-body balance from day one.
How fast will I notice something?
Many feel lighter and less bloated within the first week, some within days. Around week 2, digestion feels more predictable. By weeks 3 to 4, the difference is clearer and energy steadier. By month 2 to 3, comfort becomes your baseline. Most who respond notice meaningful change within the first bottle, building with daily use.
How do I take it?
Two capsules a day, one in the morning and one at night, with or without food. Each bottle is a 30-day supply. No refrigeration needed.
What if it's not for me?
That's what the guarantee is for. If Gut Balance isn't the right fit, you're covered by our 90-day money-back guarantee, so you can try it with confidence.
Is it safe and clean?
Vegan, non-GMO, gluten-free, third-party tested and made in the USA, with no fillers or fluff. Contains a soy processing derivative (no soy protein). As with any supplement, check with your physician if you're pregnant, nursing or managing a condition.
*Try the Gut Reset Pack for up to 90 days. If you're not satisfied, contact us within 90 days of delivery and we'll refund your first bottle.