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...

Glass of warm salt water dissolving next to a bowl of coarse salt on marble.

Salt Water Gargle for Bad Breath: When It Actually Works (And When It Doesn't)

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Person sitting alone on a foggy park bench, head bowed, showing bad breath's toll on confidence.

How Chronic Bad Breath Affects Confidence and Relationships

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Open medical textbooks with anatomy diagrams and reading glasses illustrating halitosis diagnosis research.

Why Chronic Halitosis Is So Hard to Diagnose: A Clinical Gap in Care

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Silhouette profile with glowing throat and nasal passages illustrating post-nasal drip and bad breath.

Post-Nasal Drip and Bad Breath: The Overlooked Connection

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Panoramic dental X-ray showing full upper and lower teeth and jawbone.

What to Expect When Returning to the Dentist After Years Away

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Microscopic view of blue biofilm and bacteria coating a pink tongue surface.

Coated Tongue That Won't Go Away: When It's Not Yeast

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Hand reaching into a glass bowl overflowing with white breath mints against a black background.

Bad Breath Coping Mechanisms: Why Masking Doesn't Work & What Actually Solves Halitosis

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U-shaped smart toothbrush and cordless water flosser on a bright bathroom counter.

Water Flossing and Gum Recession: What the Evidence 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

2 min read

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