Upgrade Your Oral Health - HSA/FSA Eligible
1 min read

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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Black Marks or Stains on Teeth After Wearing a Retainer? Here's What's Happening

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Person touching their lower lip, checking for lingering numbness after a dental injection.

Dental Injection Side Effects: What's Normal and When to Call Your Dentist

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Panoramic dental X-ray on a monitor showing full arches, decayed molars, and marked measurements.

Can Severely Damaged Teeth Be Saved? What Dentists Actually Look For

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Clear night guard on a bedside table beside water while a person sleeps.

Why Your Gums Recede Even When You Brush and Floss Every Day

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Dentist using a mirror to examine a lump under a patient's tongue during a checkup.

Lump on Your Tongue: When It's Harmless and When to Get It Checked

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Lip piercing hoop with visible gum recession and staining on lower teeth at dentist.

Oral Piercings and Gum Health: Recession, Chipping, and What the Research Says

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Person examining a white patch inside their lower lip in a bathroom hand mirror.

White Patch in Your Mouth? Here's When It's Time to See a Dentist

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Person examining teeth and gums closely in a bathroom mirror to check for tooth wear.

Why Some Tooth Damage Doesn't Need a Filling And What to Do Instead

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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