Tackle the root cause of bad breath

Identify & eliminate the bacteria that cause bad breath through at-home oral microbiome testing & care.

No more guesswork. No more frustration.

Fix your bad breath now

Join 10,000+ members

Over 50 million people in the United States suffer from chronic bad breath. 90% of bad breath is caused by specific types of bacteria in your mouth that produce volatile sulfur compounds (VSCs).

Bristle identifies these bacteria and develops a custom care plan to help you eliminate them. 

Food? Coffee?

It's bacteria.

Specific bacteria in your mouth, throat and gut release byproducts that cause bad breath.

Our test measures these bacteria to help you understand exactly what's causing it, and how to treat it.

Tongue-coating fungi

Gut-related bacteria

Gum disease-causing bacteria

Opportunistic microbes

Tonsil stones

Specific dietary factors

Learn more

Meet the first root-cause care program for your mouth

Step 1

Order your test & send your sample

We'll deliver it directly to you in 2-3 days. Send your saliva sample to our lab in a prepaid envelope.

Step 2

Get your oral health report card

Identify the root-cause of what's driving your bad breath.

Step 3

Get your care plan

Receive a personalized product, hygiene & diet plan to eliminate your bad-breath bacteria & improve oral health.

Step 4

Track your journey

Measure your progress with another test & continue improving.

“Frustrated with nothing to lose, I took the Bristle test."

Words can not express my satisfaction. I can get close to people. I can speak to people. This means the world to me. Thank you for helping me eliminate my issue, it means the world.”


Verified Bristle Health Member

Join 10,000+ members

Get the Bristle Oral Health Test

Measure the levels of good & bad bacteria in your mouth. Understand your oral health & Identify the root-cause of conditions early on. Get a custom plan to improve. Backed by leading dentists.

See what you can accomplish with every test from Bristle

🚗 Free Shipping ⏱ 3-5 Day US Delivery 💲 HSA/FSA Accepted

Loved by 10,000 happy mouths

4.84 out of 5 stars

See why 10,000 people use Bristle to take control of their oral health

Good health starts with a healthy mouth

The oral microbiome is the complex ecosystem of bacteria, fungi, and more that lives inside your mouth. Some keep our teeth and gums healthy, while others cause damage and cause conditions like bad breath, tooth decay and gum disease.

The latest research has also linked the oral microbiome to conditions like heart disease, Alzheimer’s and diabetes. 

Your oral microbiome is the foundation of your oral health. We help you identify and eliminate the harmful bacteria in your mouth to improve your oral and overall health.

Learn the science

Developed in collaboration with dental leaders

Dr. Mark Burhenne

Functional Dentist & Founder of Askthedentist.com

"The mouth is the gateway to your body and oral bacteria have been associated with a higher risk for systemic conditions including Alzheimer’s, diabetes, cardiovascular disease, and poor pregnancy outcomes. You can’t be healthy without a healthy mouth. And what you don’t measure, you cannot manage.”

Bristle Health White Paper

Explore our cutting-edge, affordable oral microbiome test to assess periodontal disease and dental caries risk.

Read More

The Oral-Gut Axis

The oral cavity is more than just an entry point to the digestive system. Explore the intricate relationship between oral and digestive health further!

Read More

The 6 Types of Bad Breath

Bad breath isn't a one-cause issue but a complex interplay of microbes in your mouth. Dive into the specific bacteria and fungi responsible for halitosis and learn how understanding these culprits can guide you toward fresh breath solutions.

Read more

Frequently asked questions

What does the Bristle test look for?

How many microbes does Bristle detect?

Can I share my results with my dentist?

Can I use HSA/FSA for payment?

When will I receive my test?

Is Bristle CLIA compliant?