Upgrade Your Oral Health - HSA/FSA Eligible
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Only Buy The Feno Smartbrush from Official Channels — Watch Out for Imitation Sites

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chronic sinusitis bad breath | 5 min read

Can Chronic Sinus Issues Cause Bad Breath Even With Good Oral Hygiene?

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acid reflux tongue | 4 min read

Baking Soda and Tongue Coating: Could Silent Reflux Be the Hidden Connection?

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bad breath anxiety | 5 min read

Halitosis vs Halitophobia: Understanding the Difference Between Bad Breath and the Fear of Bad Breath

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alkaline water bad breath | 5 min read

Does Alkaline Water Help Bad Breath? What Science Actually Says

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U-shaped smart toothbrush on a charging base marked with a red FAKE ALERT stamp.
Profile silhouette with an MRI scan revealing sinus and nasal cavities behind bad breath.
White baking soda powder pouring into fizzing water, illustrating a pH-neutralizing reaction for reflux relief.
Anxious person covering mouth alone at a busy cafe, illustrating fear of bad breath.
Glowing water droplet holding a DNA helix, illustrating alkaline water and bad breath science.

Feno latest

Profile silhouette with an MRI scan revealing sinus and nasal cavities behind bad breath.

Can Chronic Sinus Issues Cause Bad Breath Even With Good Oral Hygiene?

5 min read

More in the news...

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Dental Anxiety and Loss of Control: How to Rebuild Trust and Take Charge of Your Care

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Toothpaste applied to a U-shaped toothbrush mouthpiece with nylon bristles on black.

Fluoride Facts: Benefits, Risks, and What Happens If You Skip It

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Person checking sore gums with a finger while holding a toothbrush in a bright bathroom.

Managing Mild Periodontitis Before It Gets Worse

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Person flossing front teeth in front of a lit bathroom mirror.

Why Teeth Sometimes Feel Loose After Flossing and When to Worry

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Person pauses at a table with citrus, ice water, bread, and berries.

Why Certain Foods Trigger Tooth Sensitivity (And What to Do About It)

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Person holding their jaw in discomfort while reviewing bills, worried about affordable dental care.

How to Protect Your Oral Health When Dental Care Feels Unaffordable

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Person touching jaw in discomfort at a candlelit Thanksgiving table with fall decor.

Pre-Thanksgiving Oral Health: How to Prepare Your Teeth, Gums, and Breath for the Holiday Week

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Person touches jaw in discomfort holding milk, cheese bowl nearby, illustrating dairy and tooth health concerns.

Does Cutting Dairy Really Improve Oral Health? What the Research Actually Shows

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Other news

Person in bed at night clutching chest, showing acid reflux discomfort that can cause bad breath.

Acid Reflux and Bad Breath: Why GERD-Related Halitosis Needs More Than Mouthwash

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Founders spotlight

Feno founder smiling while seated in a bright, modern office hallway.

We founded Feno to revolutionize dental care, understanding the vital connection between oral and overall health.

Seeing how closely our oral health ties to our overall well-health, I started Feno to use technology to make dental care smarter and keep you healthier.

Feno u shaped smart toothbrush with digital display showing the time, standing upright.

Let’s stay connected

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The Founder’s Edition Bundle:

Your Complete Oral Care Kit

Feno smart U-shaped toothbrush bundle with foam bottles, charger, and connected phone app.

1 Feno Smartbrush™

Includes the Smarthandle and Snap Charger

1 TrueFit Mouthpiece™

Sized for your comfort and dental arch

3 Tubes Feno Foam

Xylitol foaming toothpaste

1 Month Feno Plus

Oral Health Insights & Connected Dentist

Shop Now for $299