OMC-1™ 30 day x2

OMC-1™ 30 day x2

$118.00
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OMC-1™ 30 day x2

OMC-1™

Oral Microbiome Complex

Pioneering Oral
Microbiome Health

4.7
1,400+ Reviews
Formulated with 7 active ingredients that work together to support a balanced oral microbiome — promoting lasting oral health and whole-body wellbeing.*
Helps Reduce Harmful Oral Bacteria and Supports Microbial Balance
4B CFU of Clinically Studied Probiotic Strains
Supports Whole-Body Wellness Through a Balanced Oral Microbiome
Supply
Usage
Delivery in
5–8 Days
90-Day Satisfaction
Guarantee
Made in a USA
GMP-Certified Facility
Woman smiling outdoors — ÓSTA OMC-1

A Smarter Approach
to Oral Health.

Supports Oral Microbiome Balance

A complete complex with three oral-specific probiotic strains that help support a more balanced oral microbiome — not just surface-level cleaning.

Clinically Studied Ingredients

Every active ingredient selected based on peer-reviewed research — chosen for its studied role in oral health and microbiome support.

Designed For the Oral Environment

A chewable format designed for the oral environment — helping reduce plaque buildup, support beneficial bacteria, and enamel remineralization.

Supports Oral Microbiome Balance

A complete complex with three oral-specific probiotic strains that help support a more balanced oral microbiome — not just surface-level cleaning.

Clinically Studied Ingredients

Every active ingredient selected based on peer-reviewed research — chosen for its studied role in oral health and microbiome support.

Designed For the Oral Environment

A chewable format designed for the oral environment — helping reduce plaque buildup, support beneficial bacteria, and enamel remineralization.

Microbiome-First Oral Care
Supports Microbial Balance
Complete Oral Microbiome System
Clinically Studied Ingredients
Targets Harmful Oral Bacteria
Fresh Breath That Lasts
Designed for Daily Oral Health
Works With Your Oral Ecosystem
Supports Balance, Not Disruption
Microbiome-First Oral Care
Supports Microbial Balance
Complete Oral Microbiome System
Clinically Studied Ingredients
Targets Harmful Oral Bacteria
Fresh Breath That Lasts
Designed for Daily Oral Health
Works With Your Oral Ecosystem
Supports Balance, Not Disruption

Introducing OMC-1

A Complete Complex — Designed to Support a More Balanced Oral Microbiome

OMC-1 is designed to help shift the oral environment toward a more balanced relationship between beneficial and less favourable bacteria — focusing on the ecosystem itself rather than simply covering up surface-level concerns. A balanced oral microbiome plays an important role in long-term oral health.

By introducing beneficial strains such as L. salivarius and L. paracasei, OMC-1 is designed to work with the mouth’s natural microbial environment. These strains are studied for the compounds they produce and for how they interact with other oral bacteria — helping support a more stable and resilient ecosystem over time.

The mouth plays a central role in the body’s wider biological network. By supporting a more balanced oral environment, OMC-1 is designed to help maintain the conditions associated with the oral–systemic connection — starting at the source.

Oral Health Support

Real Oral Health,
Starting at the Source

By supporting oral microbiome balance, OMC-1 is designed to address the underlying environment behind common oral concerns — helping support fresher breath, stronger teeth, and healthier gums over time.

Man smiling with healthy teeth outdoors

Stronger, Brighter Teeth

By helping support a more balanced oral pH and reducing the conditions that allow acid-producing bacteria to thrive, OMC-1 helps create an environment that supports natural enamel maintenance — contributing to improved brightness and long-term tooth integrity.

Fresher Breath, Naturally

Breath freshness is often influenced by volatile sulphur compounds produced by certain oral bacteria. OMC-1 is designed to help reduce the conditions associated with their formation — supporting fresher breath rather than simply masking it.

Healthier Gums

By helping shift the oral environment away from imbalance, OMC-1 supports a healthier gum environment and contributes to a more stable foundation for long-term oral health.

Daniel Webb, MSc Oral Biology

ÓSTA is one of the first brands I’ve seen that genuinely reflects where oral health research is heading. OMC-1 approaches the mouth as a microbiome — not just something to clean, whiten, or sterilise.

What sets OMC-1 apart isn’t just the quality of the ingredients — it’s the way the formula is designed to work as a system. Most oral probiotics introduce beneficial bacteria into an environment that isn’t prepared to support them, which limits meaningful colonization.

OMC-1 takes a more complete approach: supporting bacterial balance, introducing beneficial strains, and creating better conditions for those strains to establish themselves.

I’ve been taking OMC-1 for several months now, and even with consistently good oral hygiene, my mouth has never felt this healthy.

It’s one of the only oral health products I’ve come across that treats the mouth as the complex ecosystem it actually is — rather than something to sterilise.

Daniel Webb

MSc Oral Biology & Microbiome Researcher

Clinically Studied Ingredients | No Harsh Antiseptics
Whole-Body Impact

Benefits That Go Beyond Your Mouth

Your oral microbiome is one of your body's most important health foundations.
When that ecosystem thrives, so does everything connected to it.

01

Brain Health & Cognitive Function

Emerging research links the oral-gut-brain axis to brain communication pathways. OMC-1 is associated with maintaining a balanced oral microbiome, which supports the natural microbial signals connected to neurological activity.

02

Systemic Inflammation

Maintaining a balanced oral microbiome is associated with the body's normal inflammatory responses, supporting overall microbial balance and wellbeing.

03

Heart Health

Certain oral bacteria are connected to arterial processes. OMC-1 helps maintain a balanced oral microbiome, which research suggests is associated with normal cardiovascular pathways.

Active woman benefiting from ÓSTA OMC-1 whole-body health
04

Gut Health

The oral cavity is an entry point to the digestive system. OMC-1 helps maintain oral microbial balance, which is linked to normal microbial communities in the gut.

05

Immune Regulation

The oral microbiome plays a key role in training immune responses. OMC-1 helps support microbial diversity, which is connected to the body's normal immune pathways.

06

Metabolic Health

Chronic oral imbalance has been linked to metabolic signaling. OMC-1 helps maintain oral microbial balance, which is associated with normal metabolic pathways.

>
Active woman benefiting from ÓSTA OMC-1 whole-body health

Emerging research links the oral-gut-brain axis to brain communication pathways. OMC-1 is associated with maintaining a balanced oral microbiome, which supports the natural microbial signals connected to neurological activity.

Maintaining a balanced oral microbiome is associated with the body's normal inflammatory responses, supporting overall microbial balance and wellbeing.

Certain oral bacteria are connected to arterial processes. OMC-1 helps maintain a balanced oral microbiome, which research suggests is associated with normal cardiovascular pathways.

The oral cavity is an entry point to the digestive system. OMC-1 helps maintain oral microbial balance, which is linked to normal microbial communities in the gut.

The oral microbiome plays a key role in training immune responses. OMC-1 helps support microbial diversity, which is connected to the body's normal immune pathways.

Chronic oral imbalance has been linked to metabolic signaling. OMC-1 helps maintain oral microbial balance, which is associated with normal metabolic pathways.

The Root Problem

Stop Treating Symptoms.

 

Bad breath, cavities, and gum issues aren't isolated problems — they're visible signs of a deeper issue: oral microbiome imbalance.
Traditional oral care is designed to suppress symptoms — whitening teeth, masking bad breath, or wiping out bacteria.
But your mouth is a living ecosystem. When harmful bacteria begin to dominate, the same problems keep returning — because the underlying imbalance is still there.

As that imbalance is addressed, the downstream effects can begin to shift.

The OMC-1 Difference

NOT Just An Oral Probiotic…

Most oral probiotics are introduced into an environment still dominated by harmful bacteria and structurally favorable to their return. Without addressing those conditions first, meaningful colonization becomes difficult to sustain.

OMC-1 tablet split in two, surrounded by a ring of white powder

Tri-Phasic Ecosystem Modulation™

Tri-Phasic System Designed to Support Colonization, Not Just Delivery

OMC-1 is built using our Tri-Phasic Ecosystem Modulation system — formulated specifically for addressing the three fundamental requirements for sustained ecosystem stability:

Guava extract and xylitol help reduce the dominance of key harmful species associated with oral dysbiosis, creating a more favorable environment for beneficial bacteria to establish.

Three oral-compatible probiotic strains are introduced into this prepared environment, where they can better adhere to oral surfaces, compete for space and nutrients, and contribute to a more balanced microbial ecosystem.

Microcrystalline hydroxyapatite supports enamel remineralization and helps create smoother tooth surfaces, reducing the structural niches where harmful bacteria are more likely to adhere and persist.

Clear. Seed. Stabilize. Clear. Seed. Stabilize. Clear. Seed. Stabilize. Clear. Seed. Stabilize. Clear. Seed. Stabilize. Clear. Seed. Stabilize.

A New Approach To Oral Care…

Rather than killing all bacteria indiscriminately, OMC-1 helps suppress the harmful species while supporting the beneficial ones your mouth actually needs.

OMC-1
Conventional
Oral Care
Supports A Balanced Oral Microbiome
Addresses The Imbalance, Not Just Symptoms
Preserves Beneficial Bacteria
Lasting Balance Over Temporary Relief
Supports Overall Wellness Via Oral Microbiome
No Harsh Ingredients

Good hygiene keeps your mouth clean. OMC-1 keeps it healthy.

What Our Community Is Saying

How OMC-1 is changing how people think about oral health

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Survey feedback

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Clinically Studied | No Harsh Chemicals

YOUR OMC-1 JOURNEY

What To Expect

Based on published oral probiotic research and reported user experience. Individual experience may vary.

Man taking ÓSTA OMC-1 supplement
Week 1–2

Early Signals

  • Morning breath may begin to feel fresher
  • Mouth may feel cleaner for longer after brushing
  • Teeth may begin to feel smoother by the end of the day
Week 3–4

Noticeable Change

  • Breath may feel fresher for longer throughout the day
  • May help reduce the sense of buildup between brushings
  • Gums may begin to feel more comfortable and less reactive
Week 6–8

Building Balance

  • Continued support for a healthier-feeling gum environment
  • Teeth may appear naturally brighter over time
  • Ongoing support for a more balanced oral environment
  • A greater sense of oral freshness and everyday comfort
Week 8+

Ongoing Support

  • The oral environment may begin to feel more stable and resilient with continued use
  • Supports oral health as part of a consistent daily routine
  • Supports long-term oral care and maintenance
  • Oral care becomes easier to maintain as part of your daily routine

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. This timeline reflects published oral probiotic research and reported user experience. Individual experience may vary depending on baseline oral health, oral care habits, and consistency of use.

Science-Backed Ingredients

Everything Your Mouth Needs,
In One Daily Bite

Every ingredient in OMC-1 was selected based on peer-reviewed research. Each plays a defined role within OMC-1's Tri-Phasic system — designed to help reduce unwanted biofilm buildup, support the growth of beneficial bacteria, and reinforce the surfaces they interact with.

ÓSTA OMC-1 natural ingredients — xylitol crystals, guava leaves, and chewable tablets
Phase 1 — Pathogenic Disruption
🍬

Xylitol

Works by interfering with the way acid-producing bacteria metabolise sugars — helping shift the oral environment away from conditions that favour their growth, while remaining compatible with beneficial species. Supports a more balanced oral pH, creating favourable conditions for Phase 2 colonisation.

🌿

Guava Fruit Powder 325 mg

Contains plant-based compounds studied for their interaction with oral bacteria — helping reduce the presence of odour-associated and imbalance-linked species, while remaining supportive of overall microbial balance. Works alongside xylitol to help prepare the oral environment for probiotic colonisation in Phase 2.

Beta-Cyclodextrin

A ring-shaped molecule designed to bind with volatile sulphur compounds associated with oral odour — helping reduce their presence at a molecular level rather than simply masking them.

Phase 2 — Beneficial Colonisation
🦠

Lactobacillus salivarius LS97 Oral Probiotic

A strain naturally found in a balanced oral microbiome. Following Phase 1, LS97 is introduced to compete with odour-associated bacteria for space and resources — helping support a more stable and balanced microbial environment over time.

🦠

Lactobacillus paracasei LC86 Oral Probiotic

Interacts with other bacteria in the oral environment and may help limit their ability to adhere to tooth surfaces — reinforcing the environment shaped in Phase 1. Contributes to maintaining oral microbial balance as part of the broader microbiome system.

🦠

Lactobacillus acidophilus LA85 Oral Probiotic

Produces compounds that contribute to microbial balance — helping maintain the environment established by LS97 and LC86. Adds diversity to the oral microbiome, supporting a more stable and resilient ecosystem over time.

Phase 3 — Structural Fortification
💎

Microcrystalline Hydroxyapatite 5 mg

The same mineral found in tooth enamel. Phase 3 focuses on structural support — helping maintain enamel integrity and supporting smoother tooth surfaces that are less favourable for bacterial buildup between cleanings.

ÓSTA OMC-1 natural ingredients — xylitol crystals, guava leaves, and chewable tablets

Clinically Researched Ingredients,
Quality, and Safety

Laboratory microscope with scientist in background

Clinically Researched Ingredients,
Quality, and Safety

From research and formulation to manufacturing and testing, every bite of OMC-1 is backed by rigorous protocols to ensure it’s effective, safe, and consistently high quality.

OMC-1 is formulated with ingredients supported by clinical research for their role in gum health, enamel support, and microbiome balance.
OMC-1 is manufactured in the United States in GMP-compliant, FDA-registered facilities, ensuring consistent quality, safety, and production standards.
Every batch is manufactured following strict quality control processes to ensure ingredient integrity, purity, and consistency.

Understanding the Problem

The Oral Microbiome
What It Is
And Why It Matters

01

Your Mouth Is The Gateway To Your
Entire Internal Ecosystem

01 — The Gateway

Your oral microbiome is the first point of contact for everything that enters your body.

When this ecosystem is in balance, beneficial bacterial species help keep harmful microbes in check and protect your health.

That makes the oral microbiome one of the most important — and most overlooked — ecosystems in the body.

02

The Microbiome

02 — The Microbiome

You Are Not Just Human — You Are a Host

Your body is home to trillions of microbes that live on and within you — forming a complex ecosystem that plays an important role in maintaining your health.

700+

bacterial species exist in the mouth alone

When this ecosystem is in balance, these microbes help regulate harmful species and support the stability of your oral environment.

02 — The Microbiome

The better the environment you create for this ecosystem, the more stable and resilient it becomes — and the more it supports you in return.

ÓSTA is derived from the Irish word óstach, meaning host — reflecting our belief that true oral health begins with supporting the ecosystem that lives within you.

03

“So All Bacteria
Aren’t Bad?”

03 — The Balance

No — far from it.

Most of these microbes are not just passive passengers in your body, but active partners contributing to your health.

They help regulate harmful species, interact with your immune system, and play a role in maintaining a stable, balanced environment.

03 — The Balance

Your microbiome influences key systems throughout the body

The diversity and balance of this microbial community — your microbiome — influences key systems throughout the body, including immunity, inflammation, and metabolic function.

04

Oral Dysbiosis
- The Real Problem

04 — The Problem

The problem isn’t bacteria — it’s imbalance.

Oral dysbiosis is a state where the natural balance of your oral microbiome breaks down — allowing certain harmful species to overgrow while beneficial bacteria lose control.

In a balanced state, diverse bacteria coexist and regulate each other.

In dysbiosis, a small number of harmful species begin to dominate.

04 — The Problem

Bacteria such as S. mutans and P. gingivalis can then thrive —

producing acids that weaken enamel, releasing toxins that inflame and break down gum tissue, and forming protective biofilms that make them harder to remove.

The result: cavities, bad breath, gum disease, and progressive oral deterioration — all stemming from the same underlying imbalance.

05

The Oral-Systemic
Health Connection

05 — Beyond Your Mouth

Your Mouth Affects Everything.

What happens in there doesn’t just stay there.

Your oral microbiome is not isolated — it is constantly interacting with the rest of your body through natural biological pathways.

Bacteria and their byproducts can move beyond the mouth through the bloodstream — particularly when the gum barrier is compromised — and through the digestive system, where oral bacteria are continuously swallowed in saliva and interact with the gut microbiome.

05 — Beyond Your Mouth

These pathways create connections between oral health and broader systems throughout the body, including cardiovascular, respiratory, and metabolic function.

Emerging research from leading institutions such as the Mayo Clinic and the National Institutes of Health continues to explore how oral bacteria and chronic imbalance can influence broader biological systems — reinforcing that the mouth is part of a much larger ecosystem.

05 — Beyond Your Mouth

Oral health is not isolated — it is a cornerstone of systemic health

This is why oral health is no longer seen in isolation — but as a key component of your overall microbiome and systemic health.

06

The Hygiene Paradox
Why Antibacterial Oral Care Fails

06 — The Paradox

Antibacterial mouthwashes kill bacteria — but they do so non-selectively, affecting both harmful and beneficial species within the oral microbiome.

While this can improve symptoms in the short term, it doesn't help the underlying imbalance that drives oral dysbiosis, and can actually make things worse.

06 — The Paradox

In this stripped, bacteria-free void, pathogenic species recolonize first.

In this disrupted environment, harmful bacteria often return faster and more aggressively — re-establishing imbalance and creating a cycle of recurring symptoms and repeated disruption.

07

Stewardship Over Destruction
A New Approach to Oral Care

07 — The Solution

Oral care shouldn’t be about eliminating bacteria — it should be about managing the ecosystem they exist within.

A stewardship approach focuses on supporting microbial balance, allowing beneficial bacteria to thrive while keeping harmful species in check.

07 — The Solution

OMC-1 is built on this principle

Supporting a stable oral environment where beneficial bacteria can establish and naturally limit the overgrowth of harmful species.

Swipe to explore

Subscribe & Save

Big Smiles, Bigger Savings, Monthly

OMC-1 works best as a daily habit. Subscribe and get it delivered monthly. Better price, zero hassle, one less thing to think about.

Woman smiling and holding ÓSTA OMC-1 bottle

Why Subscribe?

With a subscription, you pay 25% less every month than you would buying once off every month. No minimum commitment.

Cancel anytime in two clicks from your account. No emails, no phone calls, no hoops.

Once subscribed, we promise to never increase your price. The price you subscribe at is the price you keep forever — even if we have to raise our prices for new customers.

Daily Ritual

How To Use OMC-1?

Man pouring ÓSTA OMC-1 tablet into palm at marble bathroom vanity

Directions for Use

01

Place In Mouth And Begin Dissolving

Place one tablet in your mouth and let it begin to partially dissolve, moving it around so it makes contact with the full oral cavity — gums, cheeks, tongue, and teeth.

02

Chew And Let It Work

Once partially dissolved, chew the remaining tablet. Allow the active ingredients to continue interacting with your mouth, tongue, and teeth. Do not swallow whole.

03

Best After Brushing, Before Bed

Take OMC-1 after your evening brush — letting the active ingredients work overnight while you sleep.

Dosage Guide

How Much Should You Take?

OMC-1 works with your current oral health. Use the guide below to find your starting dose.

If your oral health is generally good but you occasionally notice bad breath or minor sensitivity, or simply want to stay ahead of changes — one chew before bed supports your daily routine.

If you're noticing more frequent buildup, lingering breath issues, or changes in your oral environment — start with two bites daily to support microbiome balance. You can step back to one as things stabilize.

ÓSTA OMC-1 bottle on marble bathroom counter with toothbrush and bowl

Our Promise

The 90-Day Satisfaction Guarantee

If OMC-1 doesn't work for you, we don't want your money. But we do want you to give it enough time to actually see changes.

The oral microbiome is a dynamic ecosystem that evolves over time. Daily habits can influence the balance of bacteria in the mouth, which is why consistency matters.

That’s why our guarantee starts at 90 days, not 30. Use OMC-1 daily for 90 days as part of your routine. If you’re not satisfied with your experience, you can request a full refund.

90 Days. Full Refund.

Use OMC-1 daily for 90 days. If you’re not satisfied for any reason, contact us and we’ll issue a full refund.

Terms & conditions apply.

Try It Risk-Free

Have Questions?

Frequently Asked Questions

Oral microbiome changes can occur before noticeable symptoms appear.

Supporting balance early can help maintain a healthy oral environment over time.

OMC-1 is designed for both proactive care and ongoing maintenance.

Gut probiotics are formulated for the digestive tract, while oral probiotics are designed to interact with the mouth's environment.

OMC-1 includes strains selected for their ability to function effectively within the oral cavity.

Brushing and flossing help remove plaque and debris, but they don't directly influence the overall balance of bacteria over time.

OMC-1 is designed to complement your routine by supporting a more balanced oral environment.

Absolutely keep brushing and flossing — OMC-1 works alongside your existing hygiene routine, not instead of it. Brushing and flossing remove plaque and food debris that pathogenic bacteria feed on, making the environment less hospitable for harmful species and giving the beneficial bacteria in OMC-1 a better environment to establish.

Just take OMC-1 after brushing at night, not before. This allows the active probiotic strains and biofilm modulators to work overnight when saliva flow is reduced.

Mouthwash is a different story.

Many antiseptic mouthwashes are designed to reduce bacteria broadly, rather than selectively. Because of this, they may also impact the beneficial bacteria your oral environment relies on.

If you're using OMC-1, we generally recommend avoiding regular use of antiseptic mouthwash, or reducing how often you use it. This helps create a more stable environment for the product to work as intended.

Two reasons — one practical, one scientific.

The practical reason: OMC-1 is expensive to make. Quality oral-specific strains and active ingredients aren't cheap. When you subscribe, you're committing to buying from us regularly, which means we don't need to take as much margin on each order to keep the lights on. We pass that saving directly to you.

The scientific reason: consistency plays an important role in maintaining results with products like OMC-1. Regular daily use helps support a stable oral environment over time. We made the subscription significantly cheaper because we genuinely believe it's the right way to take it.

Yes. Anytime. Two clicks from your account dashboard. No emails, no phone calls, no hoops.

Oral microbiome research is an evolving field, and approaches can vary between practitioners.

OMC-1 reflects a newer perspective focused on supporting microbial balance alongside traditional care.

OMC-1 combines multiple approaches, including supporting beneficial bacteria and maintaining the oral environment.

This multi-faceted design is intended to work alongside daily hygiene habits.

Chewable tablets allow the active ingredients to be released directly in the oral cavity, where they need to work. Swallowing a capsule would bypass the mouth entirely, delivering probiotics to the gut rather than establishing them in the oral microbiome. The chewable format ensures maximum contact time with oral tissues.

Yes — OMC-1 is designed to complement an existing health stack. The only caution: avoid taking it within 2 hours of a high-dose antimicrobial supplement, as this could reduce probiotic viability.

Chew one OMC-1 tablet slowly after brushing at night and let it dissolve across your teeth, gums, and tongue. Taking it at night allows the beneficial bacteria to begin colonising undisturbed while you sleep.

Individual experiences can vary.

Some people report noticing changes within the first few weeks, while others may require more consistent use over time.

No. At the moment, we only ship domestically in the US.

Like many daily health habits, consistency helps maintain the intended effects over time. Think of it the same way you think about diet or exercise: the benefits come from showing up regularly, not from a single course.

That's also why we offer a subscription — so it's easy to maintain without thinking about it. You can pause or cancel any time.

If after 90 days you see no improvement in any area — breath, gum health, or how your mouth feels — we'll refund you in full. No questions asked.

We recommend consulting a dentist or paediatrician before giving it to children under 12.

The formula includes ingredients commonly used in oral care products designed to support enamel. If you have sensitivity concerns, it's best to check with your dentist.

OMC-1 contains xylitol, which is commonly used as a low-glycemic sweetener. If you have a medical condition such as diabetes, consult your healthcare provider before use.