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...

Person in gray sweater gripping a dental chair armrest, illustrating dental anxiety at the dentist.

Dental Anxiety and Avoidance: Why "Too Far Gone" Is Rarely True

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Hands holding a phone showing the Feno app's oral health report beside a U-shaped smart toothbrush.

Gum Disease and Whole-Body Health: What the Systemic Link Really Means

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Pregnant person holding a floss pick and glass of water at a bright bathroom sink.

Why Your Gums Are Inflamed Even When You Brush and Floss Regularly

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Dental hygienist in blue gloves polishing a reclined patient's teeth during a professional cleaning.

Why Tartar Keeps Coming Back, And What Actually Slows It Down

3 min read
Close-up of a dark pigmented spot on the lower gum near front teeth.

Dark Vein or Spot in the Mouth: Causes, Red Flags, and When to See a Dentist

5 min read
Close-up of a person applying a clear whitening strip to visibly stained teeth.

Why Teeth Don't Always Respond to Whitening

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Person sipping ice water through a metal straw, a common trigger for tooth sensitivity.

Why a Broken Tooth Doesn't Always Hurt Right Away (And Why You Still Need to Act)

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Person at a laptop holding their jaw in discomfort from crowned tooth pain.

Why a Crowned Tooth Might Still Hurt: Causes and What to Do

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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