V34 Whitening Strips™
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Redefining Teeth Whitening.
Discover the science-driven innovation behind a visibly brighter smile.
Professional-Grade Whitening
No appointments. No harsh chemicals. Results in just 30 minutes.
Visibly Whiter in 30 Minutes
Purple color-correction neutralizes yellow tones while targeting surface stains.
Gentle on Sensitive Teeth
Safe for daily use and suitable for even the most sensitive enamel.
Dentist-Formulated
Developed and tested with dental professionals for safe effective whitening.

Before and After Results
See the visible difference Smileo™ delivers — real whitening results from real people, powered by purple color-correcting technology.
How It Works
Follow these simple steps to get started.
1. Peel a Strip
Take 1 strip for your top teeth and 1 strip for your bottom teeth.
2. Apply
Place the purple side directly onto dry teeth. Press gently for 30–60 seconds.
3. Reveal Your Smile
Remove strips and brush away the purple. Enjoy visibly brighter teeth instantly.
Have a question? Our support team is here to help.
Check out the most common questions our customers asked. Still have questions? Contact our customer support.
Our customer support is available Monday to Friday: 9am–5pm CST
Average answer time: 24h
Smileo strips are formulated with 10% Hydrogen Peroxide, which is the most common teeth whitening ingredient in professional treatments. Unlike extrinsic or superficial whitening products that only cause a temporary color-change on the surface of the teeth, Hydrogen Peroxide whitens from the inside out by dissolving gunk that causes discoloration. At a concentration of 10%, you get twice the strength of most whitening strips out there.
Smart Adjust refers to our unique design by Dr. Winters. Each strip comes with perforations that let you customize the strip size to perfectly fit the front of your teeth. Most strips are too big, forcing you to wrap the strip over and cover back of the teeth, which wastes smileo product and is the main cause of intense sensitivity during whitening. With Smart Adjust, you only have to treat the front of the teeth (where it really counts). It also means you can get double the treatments if you only use half of a strip in a single treatment.
Added coconut oil buffers against the high concentration of Hydrogen Peroxide and Smart Adjust customizable sizing eliminates exposure to the back of your teeth—both innovations mean you get incredible results with half the sensitivity.
A smileo time of 30-60 minutes per day is recommended. If you experience intense sensitivity, a shorter treatment time may be suitable.
Each box contains 21 standard treatments for 3 full weeks of daily application, or until desired whiteness is achieved.
You may notice some white spots or patches on your teeth, especially in areas that are slightly demineralized. This is a normal, temporary effect of the treatment process. These marks will naturally fade as your teeth rehydrate, typically within 24-48 hours after treatment.
While results can last for many months, teeth isn't permanent and results vary from person to person and are impacted by individual lifestyle choices.