At-Home Teeth Whitening Kit
Visibly Whiter
Teeth in Just 5 Days
- Bestseller
Gel made in Germany
Bring teeth whitening home and leave stains behind. This kit whitens your teeth gently and painlessly – no dentist appointment needed.
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Up to 9 shades whiter
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Trusted by Pharmacies
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For sensitive teeth
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Test Winner 2024–2026
Ships today
Free shipping to DE
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Pay up to 30 days later with
90-day money-back guarantee
Try the kit completely risk-free. If you don't see a visible change, you get your money back.
Is the kit suitable for my teeth?
Suitable for:
Natural teeth of any shape and starting shade – even noticeably yellowish teeth. The gentle formula is designed for sensitive teeth and is kind to the gums. Especially suitable for discolouration caused by coffee, tea, wine or smoking.
Effect:
Up to 9 shades whiter – for a smile you'll love to show. 93% of respondents noticed a visible difference after the very first use.
Gentle application:
Our clinically tested gel, made in Germany, whitens gently and is kind to enamel and gums. 99% reported noticing no tooth sensitivity.
Conveniently at home:
Teeth whitening without a dentist appointment. With the cordless lamp, you can read, watch your favourite series or relax in the meantime.
How do I use it?
1. Prepare your teeth
Brush your teeth as usual with your toothpaste.
2. Apply the gel
Apply two strips of gel to each side of the tray.
3. Start the treatment
Insert the tray and switch on the LED lamp.
4. 45 minutes – done!
After 45 minutes, the lamp switches off automatically. Briefly rinse your mouth with water and enjoy your result!
What if it doesn't work for me?
90-day money-back guarantee
Try the OnlySmile kit completely risk-free. If you don't notice a visible change, you get your money back – no ifs, no buts.
We know you can't tell in advance exactly how strongly your own teeth will respond to whitening. That's why you can try the kit at home at your own pace and see the result for yourself.
Don't see a visible difference? Just let us know within 90 days and we'll refund the full purchase price.
TEST WINNER
Teeth whitening test
BILD.DE • 05/2024
VERY GOOD
Teeth bleaching comparison
STERN • 01/2025
EXCELLENT
Dermatologically tested
DERMATEST® • 02/2024
VERY GOOD
Teeth whitening system
VERGLEICH.ORG • 05/2026
See the difference.
93
%
of respondents saw a visible difference after the very first use.*
I was really sceptical. But after just a few sessions, my teeth looked noticeably whiter. Even my boyfriend asked if I'd had them bleached.
–Luise M.
See how easy it is
Not overnight. But over time.
Your morning coffee, a glass of red wine in the evening: what you love to eat and drink can leave stains on your teeth. Over time, they become more visible, even if you brush regularly and thoroughly.
With OnlySmile, you add targeted whitening to your oral care.
The 3 Keys to Whiter Teeth
Each part has a clear job: the gel whitens, the LED activates the formula and the timer ensures the right exposure time.
01
The gel
The active ingredients in the gel change the structure of the colour molecules, so stains on your teeth become lighter.
02
The LED lamp
The blue LED light helps the whitening gel break down staining pigments faster.
03
The exposure time
While the gel stays in sufficient contact with your teeth, the active ingredients gradually react with the colour molecules.
Gentle on Teeth. Tough on Stains.
Discover our deYellow technology. The secret to visibly whiter teeth and whitening that feels surprisingly gentle.
OnlySmile Whitening Gel
14 Years of Expertise.
One Exclusive Formula.
Our dental experts carefully selected every ingredient and balanced them perfectly. The result is our deYellow formula, which whitens quickly and gently.
Made in Germany
From selecting the active ingredients to the finished formula: German quality standards for your at-home teeth whitening.
For sensitive teeth
The formula remains gentle on enamel and gums.
10 applications
For your whitening course and for touching up the result later.
More than just blue light
Powerful Light for Whiter Teeth
Our patented LED lamp was developed specifically for the OnlySmile gel. Its blue light activates the gel and speeds up the whitening.
Thanks to its cordless design, you can move around freely. After 45 minutes, the lamp switches off automatically.
25
LEDs
45 min.
Timer
10
Year warranty
Every Tooth in the Spotlight
25 LEDs spread the light over a wide area and activate the gel on your side teeth, too. For an evenly brighter smile.
Other LED lamp
OnlySmile LED lamp
Proof Beyond Promises
noticed a visible difference after the very first use
reported no sensitivity after use
were satisfied with their whitening result
*Based on a survey of users about their experience with the OnlySmile kit. Individual results may vary.
Apply.
Switch On. Let's Go!
01
Prepare
Brush your teeth and spread the gel on both sides of the mouth tray.
02
Insert and switch on
Insert the mouth tray and switch on the lamp.
03
Leave on for 45 minutes
The lamp switches off automatically. Enjoy your result!
LED lamp
Gel for 10 applications
USB-C charging cable
Shade guide
Instructions for use
Everything for a Brighter Smile.
LED lamp with mouth tray
Cordless and rechargeable.
Whitening gel
For 10 applications, made in Germany.
USB-C charging cable
For charging your lamp.
Shade guide
Compare your tooth shade before and after use.
Instructions for use
Every step clearly explained.
Quality Backed by Experience.
Teeth whitening is our speciality. Your brighter smile is our goal.
14 years of
experience
Our know-how goes into every kit.
1,000+
pharmacies
Pharmacies rely on OnlySmile.
150+
trade fairs
Present at trade fairs worldwide.
Developed
in Germany
With German quality and innovation.
Why OnlySmile Is the Better Choice.
Typical values; individual products vary.
Try OnlySmile Risk-Free.
We believe in our kit. Your satisfaction matters to us – from the first try and long after.
90
Days
Try risk-free
Take your time testing the kit. If you see no whitening, you can return it within 90 days of receipt and get your money back.
10
Years
Warranty on the lamp
So you can keep smiling worry-free in the long run, we give you a 10-year warranty on your LED lamp. Because we stand behind the quality of our products.
Loved by
Over 1 Million
Mega :-) Bin super zufrieden damit.Kann es weiterempfehlen und werde es mir auch weiterhin kaufen
Produit reçu et conforme. Merci onlysmile
Für den Preis gut.
Sehr einfach zu bedienen
Belle présentation, il n'y a plus qu'à !
Produit de qualité ! Hâte de voir mes dents blanchir au fur et à mesure. Je vous le recommande !!
Togliere da subito l'ingrandimento da caffè e sbianca gradilualmente ad ogni utilizzo
Super efficace
Prodotto ottimo! Funziona veramente
Endlich sehe ich mal einen Unterschied, das Ergebnis ist gut, ich bin zufrieden 👍man braucht aber Geduld nämlich mehrere Sitzungen.
Mi è arrivato lunedì, ho fatto subito 2 trattamenti il lunedì, martedì mercoledì e giovedi ho fatto 1 trattamento al giorno. Questo è il risultato per ora.
Io percepisco uno schiarimento, ovviamente non si tratta di un prodotto che va a sbiancare come dai dentisti, ma utile se si vuole migliorare il sorriso ad un costo inferiore. Lo consiglio
Très efficace, résultats visibles rapidement.
Je recommande fortement ce produit et j’en suis pleinement satisfait !
Prodotto ottimo e risultati veloci. Molto soddisfatto!
Je viens de recevoir ma commande et je suis très satisfaite car ce identique comme sur la photos. Je doit commencer à utiliser des aujourd’hui 🥰🥰🥰🥰👌🥰
Recebi hoje mas ainda preciso testar para ter uma opinião melhor sobre. Mas rudobque vi ne parece ser um ótimo produto
Étonnant, après une seule utilisation. Hâte de continuer
Aún no lo he probado mucho, pero viene todo correcto, y parece que bastante mejor que las tiras.
Un producto de gran calidad. Servicio muy bueno. Atendiemiento nota mil, sobre la higienizacion impecable.
Yo comprado este producto y es muy económico y es para toda mi familia
Toller Aufheller, empfehle ich weiter.
Me a encarado todo
Se notan los efectos rápidamente,!!! Muy contenta con la compra.
La sesión ha sido magnifica, me lleve el producto por el resultado. Las chicas que nos atendieron maravillosas también.
Con una sola sesión he mejorado el blanco de mis dientes, estoy encantada!
Muy buen resultado en una sola sesión
После одной процедуры заметно отбелились зубки. Я осталась довольна. Рекомендую!
Questions? We've Got Answers.
How often should I use the OnlySmile HomeSet?
On the first day, we recommend two sessions so the gel can work longer on stubborn stains that have built up over time. After that, one session a day is enough for the remaining four days.
How quickly your teeth become whiter depends on your starting shade and the staining. If you'd like stronger whitening after five days, you can extend the routine by another five days.
Even after the routine, you can easily refresh your smile. For this, we recommend one session about every two weeks – for example while watching your favourite series.
How long does one session take?
One session takes 45 minutes. Meanwhile, you can read, watch your favourite series or simply relax. The LED lamp then switches off automatically – so you don't need to keep an eye on the time.
Alternatively, you can do several shorter sessions of 20–30 minutes and repeat them more often as needed.
How many sessions does one tube of gel last?
One tube of gel is enough for 10 sessions – enough for your complete 5-day course and several touch-ups afterwards. That way, you can easily maintain your brighter smile after the course, too.
If you need a refill, you can reorder the gel separately at any time and keep using your LED lamp.
When will I see the first results?
First results are often visible after the very first session: in our user survey, 93% already noticed a difference.
For more noticeable whitening, we recommend the 5-day routine. How quickly you reach your desired shade depends on your starting shade and the staining. Stubborn stains may need a little more time.
How long does the result last?
The whitening usually stays visible for 6 to 12 weeks. How long your result lasts depends, among other things, on your habits – such as how often you drink coffee, tea or wine.
To keep your smile bright for longer, we recommend a touch-up session about every two weeks. That way, teeth whitening fits easily into your care routine.
You can also use our OnlySmile Teeth Whitening Powder to reduce everyday staining and keep your result for longer.
Is the kit suitable for sensitive teeth?
Yes, our gel was developed specifically for sensitive teeth. The formula is designed for gentle whitening and is kind to your enamel.
Our users' experience confirms this: in our survey, 99% said they noticed no tooth sensitivity.
Can I use the kit if I have crowns, veneers or implants?
Yes, you can also use the kit if you have crowns, veneers, bridges or implants. The gel whitens your natural teeth. Dental restorations and composite fillings are not whitened.
If your natural teeth are darker than your restorations, whitening can help reduce the colour difference and make your smile look more even.
Can I use the kit during pregnancy or while breastfeeding?
During pregnancy and breastfeeding, we recommend waiting before whitening your teeth. If you would still like to use the kit, please talk to your doctor first.
What if I'm not satisfied?
If you're not satisfied with your OnlySmile kit, that's no problem!
Our 90-day satisfaction guarantee applies to everyone who has tried the OnlySmile kit and used it according to the instructions but still didn't achieve satisfactory results. You can return the complete kit within 90 days of receipt.
Even if you've already unpacked and used the kit, you can still claim the guarantee – because using it is the only way to find out whether OnlySmile works for you and your teeth.
Free EU shipping
On orders of €25 or more
Personal support
Our team is here for you online
90-day money-back guarantee
Plus a 10-year warranty on the LED lamp
Secure payment
With all common payment methods
Teeth Whitening Kit
90-day money-back guarantee
