Trusted by 10,000+ Customers

Finally. Breath You
Can Feel Confident In.

The clinically-studied K12 & M18 oral probiotic strains — delivered in a slow-dissolve mint lozenge that works while you sleep. Fresh breath, healthier gums, and real confidence in one nightly habit.

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Third Party Tested
Made in the USA
4.8★ Average Rating

You've Tried Everything.
Your Breath Is Still Off.

The gum you pop before every meeting. The mouthwash you use twice a day that stops working within the hour. The embarrassment of wondering if the person across from you can smell it. You know this feeling.

😮
Chronic Bad Breath
You brush, rinse, and scrape — and still worry about it an hour later. Mouthwash masks it for 20 minutes then it's back.
🦷
Gum Inflammation
Bleeding when you floss. Sensitivity that never quite goes away. Your hygienist keeps mentioning it at every cleaning.
😶
Lost Confidence
Covering your mouth when you laugh. Turning your head slightly in conversations. Dreading close moments with people you care about.

Sound familiar? You've probably already tried:

Mouthwash twice a day — works for 20 minutes then the odor comes right back
Tongue scrapers and water flossers that help but never fully solve it
Generic probiotic capsules that dissolve in your stomach — nowhere near where the problem is
Dentists who cleaned your teeth and said everything looked fine but the problem kept coming back

The problem wasn't your hygiene. It was that nothing was addressing the bacterial imbalance underneath.

TervaLabs

The Clinically-Studied Formula Your Oral Microbiome Has Been Waiting For

Dental researchers have studied oral probiotics for fresh breath and gum health for years. Now it's available in a simple once-nightly lozenge — with the exact strains the clinical literature actually points to.

The Right Strains — Not Just Any Probiotic
Most oral probiotics use generic gut strains that do nothing for bad breath. We use S. salivarius K12 and M18 — the two strains specifically studied for oral malodor and gum health in clinical research.
Lozenge Delivery — Where It Actually Needs To Work
Capsules dissolve in your stomach, miles from the problem. Our slow-dissolve lozenge releases 11 Billion CFU directly into your oral cavity — maximizing colonization exactly where odor-causing bacteria live.
A Nightly Habit You'll Actually Keep
One mint lozenge after brushing. No mixing, no swallowing capsules, no extra steps. It dissolves in 2 minutes and the results build with every night you use it.
No Synthetic Fillers, Sugar-Free, Clean Formula
Sweetened with Xylitol — which actively inhibits cavity-causing bacteria while the probiotic strains do their work. Clean label, third-party tested, GMP certified.
Shop TervaLabs Oral Probiotic →

What Our Customers Are Saying

Thousands of people have made TervaLabs Oral Probiotic part of their daily routine. Here's what they experienced.

★★★★★

"My dentist actually asked what I changed"

I've had chronic bad breath my whole adult life. Gum, mouthwash, tongue scrapers — I tried everything. My hygienist always commented on my gum inflammation. Six weeks on TervaLabs and at my last cleaning she asked what I'd changed in my routine. My gums looked better and she said my breath was noticeably cleaner. I genuinely teared up a little. This is the first thing that's ever actually worked.

D
Derek M., 34
Ohio · Verified Purchase
★★★★★

"I stopped carrying gum everywhere"

I'm a teacher so I'm talking in front of people all day. I used to go through two packs of gum a week just to feel okay about it. After about 10 days on TervaLabs I realized I hadn't reached for gum once. By week three I stopped carrying it altogether. The mint lozenge at night has become something I actually look forward to. It's such a simple habit and the difference has been genuinely life-changing for my confidence.

S
Sarah K., 29
Illinois · Verified Purchase
★★★★★

"The K12 strain is the real deal — I researched this extensively"

I'm a microbiologist and I spent a lot of time reading the research on oral probiotics before buying. Most products either use the wrong strains or the wrong delivery method. TervaLabs has both K12 and M18 in a lozenge format — which is exactly what the clinical literature supports. I've been using it for 8 weeks and the difference in my morning breath alone has been remarkable. Hard to overstate how much the delivery format matters here.

R
Rachel T., 38
Massachusetts · Verified Purchase
★★★★★

"Tried the cheap probiotic capsules first — huge difference"

I'll be honest — I tried a generic oral probiotic from Amazon first because I didn't want to spend more. Took it for six weeks and noticed basically nothing. Then I read about why lozenge delivery matters and why K12 specifically is the studied strain. Switched to TervaLabs. Within two weeks my morning breath was dramatically different. My girlfriend mentioned it before I even told her I switched. The format and the strains actually matter — you get what you pay for.

J
James L., 31
Texas · Verified Purchase
★★★★★

"My partner noticed before I did"

About two weeks in my partner said "your breath has been really fresh lately." I hadn't said anything about starting a new supplement. By week four I was waking up without that stale morning breath I'd had for years. I've also noticed my gums don't bleed when I floss anymore — that's been going on for years and I just assumed it was normal. One lozenge a night has quietly fixed two things I thought I'd have to live with forever.

M
Marcus W., 27
Georgia · Verified Purchase
★★★★★

"30 days in and I finally feel confident at work"

I work in sales and I'm in front of clients constantly. Bad breath was genuinely affecting my confidence — I'd avoid getting too close, keep meetings short, turn my head slightly when talking. One month on TervaLabs and that anxiety is completely gone. I'm not thinking about my breath anymore. I'm just showing up and doing my job. The mint flavor makes the lozenge feel like part of a routine, not a chore. Ordered the 3-bottle bundle and won't be stopping.

A
Alicia N., 33
Florida · Verified Purchase