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BLIS K12 + M18

GMP-Certified Facility

No Artificial Sweeteners

CFU-Verified

4.7/5 based on 5,000+ customers

OS-01® The #1 Oral Probiotics

The complete oral microbiome restoration system designed to address bad breath at the source, not mask it for 20 minutes."

What You'll Feel

Fresh breath that actually lasts

Fixes bad breath at the source

Gentle on mouth- no burn, no dryness

Peace of mind in close conversations

Save 34% on every delivery

Customer Favorite!

Backed by 20 Years of Microbiome Research

You've Tried Everything. Nothing Holds.

Mints fade in 20 minutes. Mouthwash burns, then the smell comes back stronger. Tongue scrapers help for a morning. You floss twice. You drink water. You chew gum until your jaw aches. And by lunch, you're already calculating distance again.

It's not your hygiene. It never was.

Three-pain bullet stack:

The dry mouth that wakes you up at 4 AM
The sour taste that won't leave after coffee
The way you turn your head before you laugh

This may not be for you if:

You're looking for an instant, harsh "quick fix"
You're not ready for daily consistency over 30+ days

What Fresora Delivers

Restores beneficial oral bacteria killed by mouthwash
Suppresses the sulfur-producing bacteria that cause odor
Supports gum health and reduces inflammation
Reduces dry mouth, especially overnight
Neutralizes coffee, garlic, and post-meal breath
Builds long-term oral microbiome stability

Delivery & Return

We make it simple, flexible, and risk-free.

Shipping

Fast delivery within 3–5 business days
Free shipping on subscription orders
Tracking provided for every order

Subscription

Delivered monthly for consistency
Skip, pause, or cancel anytime
No hidden fees or commitments

Returns

30-day money-back guarantee
No questions asked
Full refund if you’re not satisfied

FAQs

When will I see results? Most users notice a difference within 2–3 days. Full microbiome reset by Day 30.

Can I cancel anytime? Yes — 2 clicks in your account. No calls, no forms.

Is it safe long-term? Yes. K12 and M18 are naturally occurring strains. Daily long-term use is how the protocol is designed.

4 targeted ingredients for complete oral microbiome support

Probiotic Core

BLIS K12 + BLIS M18. The only two strains clinically shown to colonize the human mouth long-term. Suppresses odor-producing bacteria and supports gum health from Day 1.

Prebiotic Fuel

Feeds the K12 and M18 strains between doses. Without it, probiotics don't survive long enough to work. This is what most competitors miss.

Sulfur Neutralizer

Inulin Zinc Citrate. Neutralizes the volatile sulfur compounds responsible for the actual smell. Works at the chemical level while the strains rebuild the colony.

Clean Delivery System

Slow-dissolve mint vanilla lozenge. No sugar, no alcohol, no harsh actives. The format keeps the strains in contact with your tongue and gum line for 8–10 minutes — long enough to colonize.

No artificial additives

No artificial sweeteners

No fillers

No synthetic colors

Non-GMO

Vegan-friendly

Non-habit forming

Sugar-free

Gluten-free

"Held longer than mints ever did"

The first 3 days were subtle. By week 2, my breath stayed fresh well past lunch — even after coffee. By month 2, I stopped checking. That's what I was actually paying for

Emily R., 47 | Subscriber since Day 1

"From skeptical to converted"

I'd tried four other oral probiotics. None held. I subscribed to Fresora because I figured if it didn't work, I'd cancel in a click. Three months later I'm still on it — the difference is real.

Marcus T., 38 | Quarterly Protocol

"Husband noticed first"

By week 3 my husband leaned in instead of pulling back. He didn't know I'd started anything. That moment was worth every dollar I'd wasted on mouthwash for the past 10 years.

Rachel M., 42 | Insider Annual

"Calmer breath all day"

What I like is it doesn't feel like a quick fix. It feels like my mouth finally settled. The dry mornings stopped. The sour taste is gone. It just works in the background.

Vanessa T., 45 | Monthly Reset

The Difference of a Truly Restored Microbiome

Clinically Studied Strains

Built around BLIS K12 and M18 — the only two probiotic strains clinically shown to colonize the human mouth long-term.

Designed for Daily Routines

One slow-dissolve lozenge after brushing. 30 seconds of effort. No pills to swallow, no powders to mix, no rinses that burn.

Non-Disruptive Daily Use

Non-habit forming. Won't disrupt your microbiome the way alcohol-based mouthwash does. Safe for indefinite daily use.

Clean Formula

Sugar-free, vegan, non-GMO. No artificial sweeteners, dyes, fillers, or preservatives. Just the active ingredients, in working doses.

Fresora Works on the Full Oral Microbiome

Most oral probiotics only add bacteria. Fresora goes further — combining two clinically studied strains (BLIS K12 + M18), a prebiotic that keeps them alive (inulin), and zinc citrate to neutralize sulfur compounds at the source. Four ingredients. One working system.

the fresora difference:
results that build over time

Feel the difference in as little as 3 days*

Day 3

First Noticeable Shifts

Mouth feels less dry on waking
Sour or metallic taste begins to fade
Tongue feels noticeably cleaner

Week 2

Breath That Holds

Breath stays neutral hours after coffee
Less need for mints between meals
Most users say "I noticed first — then someone else did"

Week 4

Confidence Returns

The 4 AM dry mouth stops waking you up
You stop checking your breath in your hand
Close conversations stop being calculated

Week 12

Microbiome Reset Complete

The good bacteria have re-established
Fresh breath holds without effort
You stop thinking about it. That's the goal.

How to use:

Take 2 lozenges daily after brushing. Let it dissolve slowly for 8–10 minutes. Do not chew. Consistent use is key — the protocol works because you stay on it.

not all oral probiotics are created equal

Most products only add one strain. Fresora combines clinical strains, prebiotics, and zinc into one complete system — built for the mouth, not borrowed from a gut formula.

BLIS K12 + M18 (both strains)

Prebiotic to feed strains

Sulfur neutralizer

Slow-dissolve format

Targets root cause

Safe for daily long-term use

Other Oral Probiotics

Capsules

Partial

Inconsistent

recommended by oral health practitioners

"Most products kill bacteria. Fresora rebuilds the colony. That's the right approach."

BLIS K12 + M18 + inulin addresses the root cause — microbial imbalance, not just the smell.

Dr. Sarah Whitman, DDS

20+ years in dental practice

Highlights:

Microbiome Restoration

Multi-Strain Protocol

Specialty:

Oral Microbiome & Halitosis

"K12 and M18 are the only strains clinically shown to colonize the mouth. Most products skip one. Fresora uses both."

Single-strain probiotics do half the job. The two-strain protocol is what the research actually supports.

Dr. Maya Reed, DMD

Board-certified periodontist

Highlights:

train-Backed Science

Gum Health

Specialty:

Periodontics & Oral Microbiome

"My chronic halitosis patients have tried everything. Fresora is the first thing that consistently holds."

The 90-day protocol matches how the oral microbiome actually rebalances — slowly, completely, lastingly.

Dr. Helena Brooks, DDS
Credentials:

15+ years treating chronic halitosis

Highlights:

Chronic Halitosis

90-Day Protocol

Specialty:

Functional Dentistry

Feel the Difference in 30 Days — Or Your Money Back

Try Fresora risk-free. If you don't notice fresher breath, less dry mouth, and more confidence in close conversations within 30 days, email us for a full refund. No questions, no return required. Keep the jar.

Start My Protocol

your protocol, delivered.

1 Month — First Step

Try the protocol for 30 days. Most users notice a difference by Day 7.

60 Lozenges

30-day supply

FREE Shipping

Free, fast, delivered.

3 Months Full Reset Protocol

90 days. Full reset. The cycle the science actually requires.

180 Lozenges

90-day reset · The full colonization cycle

+FREE Breath Fix Routine

Locks in your reset

+ FREE Shipping

Free, fast, delivered.

Country/region

30-Day Results Guarantee · Pause or Cancel Anytime

BLIS K12 + M18

OS-01® The #1 Oral Probiotics

What You'll Feel

4 targeted ingredients for complete oral microbiome support

The Difference of a Truly Restored Microbiome

Clinically Studied Strains

Designed for Daily Routines

Non-Disruptive Daily Use

Clean Formula

Fresora Works on the Full Oral Microbiome

the fresora difference: results that build over time

not all oral probiotics are created equal

recommended by oral health practitioners

"Most products kill bacteria. Fresora rebuilds the colony. That's the right approach."

Dr. Sarah Whitman, DDS

Highlights:

Specialty:

"K12 and M18 are the only strains clinically shown to colonize the mouth. Most products skip one. Fresora uses both."

Dr. Maya Reed, DMD

Highlights:

Specialty:

"My chronic halitosis patients have tried everything. Fresora is the first thing that consistently holds."

Dr. Helena Brooks, DDSCredentials:

Highlights:

Specialty:

your protocol, delivered.

1 Month — First Step

3 Months Full Reset Protocol

the fresora difference:
results that build over time

Dr. Helena Brooks, DDS
Credentials: