ÓSTA OMC-1 — Oral Health Is Whole Body Health

Pioneering Oral
Microbiome Health

4.7
1,400+ Reviews

Microbiome-First Oral Care.
Stay One Bite Ahead.

A new approach to oral health — designed to work with your body's natural ecosystem, not against it.

Shop OMC-1
✓ Supports Microbial Balance ✓ Targets Harmful Bacteria ✓ Complete Oral Microbiome Complex

Pioneering Oral
Microbiome Health

4.7
1,400+ Reviews

Microbiome-First Oral Care.
Stay One Bite Ahead.

Shop OMC-1
✓ Supports Microbial Balance ✓ Targets Harmful Bacteria ✓ Complete Oral Microbiome Complex
ÓSTA OMC-1 — Oral Microbiome Complex
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 ●
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.

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

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.

HOW IT WORKS

One Bite. Three Phases.

OMC-1 is built around our Tri-Phasic Ecosystem Modulation system — formulated to support the three core conditions that help maintain a more stable oral environment over time:

01

Clear

Xylitol, guava extract, and beta-cyclodextrin are designed to help reduce the conditions that allow odour- and plaque-associated bacteria to thrive — creating a more favourable environment for beneficial strains to establish.

02

Seed

Three oral-specific probiotic strains are included to help populate the oral environment, supporting a gradual shift toward a more balanced oral microbiome.

03

Stabilize

Hydroxyapatite helps support enamel surface integrity and smoother tooth surfaces — making the oral environment less favourable for unwanted bacterial buildup over time.

Man smiling while opening ÓSTA OMC-1 bottle at kitchen table

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

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.

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

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.

Subscribe now for 25% off

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.
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.