Questions & Answers

You will see maximum results after 6 consecutive applications if you follow the instructions. We recommend brushing your teeth thoroughly before use.

Each whitening session should last a maximum of 45 minutes and a minimum of 10 minutes. You can start with 15 minutes and add 5 minutes with each session. Once you are happy with your result, a daily 10 minute session is enough to maintain your bright smile.

No. Our teeth whitening gel contains only natural active ingredients and is vegan. It is completely safe for your teeth and gums.

Our teeth whitening kit includes our patented whitening gel formula and a Power LED lamp. The gel uses glycerin as a main component to tackle stains effectively and whiten teeth long term. Natural antibacterial ingredients such as menthol help avoid pain or sensitivity of enamel or gums.

We recommend using one quarter of the syringe on the upper tray and one quarter on the lower tray. You can use more or less gel if needed.

Results depend on the degree of staining and your natural tooth colour. You will see first results after the initial applications. With correct use and good oral hygiene, teeth can become up to 12 shades lighter. Use our activated charcoal before whitening to maximise results.

With correct use of our teeth whitening kit together with our other whitening products, your white smile typically lasts up to two years. If you frequently consume coffee, soft drinks, tannin rich tea, tobacco or similar, your teeth may darken again over time. That is no problem, as you can simply order more teeth whitening gel for your kit.

Depending on use, our teeth whitening kit provides 6 to 9 whitening treatments. When you have used up the gel, you can order a refill box. This helps you keep your bright smile long term.

The easiest way is to whiten at home after brushing your teeth. Avoid dark tea, tobacco and coffee during your whitening period. Use our activated charcoal before whitening to maximise success.

Every pregnancy is different, so please consult your doctor or midwife before whitening your teeth.

We recommend waiting until your braces are removed before whitening at home to avoid uneven results.

Home whitening is recommended from the age of 16 at the earliest. If you are under 18, we recommend getting parental consent before buying DiamondSmile products online.

Yes. Our teeth whitening kit is suitable for all teeth. We recommend applying a small amount of gel directly to the teeth and to the mouthpiece before use. The mouthpiece is made of soft, flexible silicone that adapts comfortably to your mouth and teeth. Our whitening pen and our activated charcoal are also suitable for hard to reach areas.

Artificial teeth, implants and crowns can be lightened back to their original base shade. Otherwise, the whitening gel works only on natural teeth.

Excess saliva during whitening is completely normal and does not affect the result. In fact, saliva helps distribute the gel evenly in the mouth and around the teeth. Our formula uses safe ingredients, so it is not a problem if you accidentally swallow a small amount of gel.

No. The LED light is not waterproof because it contains two batteries. Make sure you separate the mouthpiece from the LED light before rinsing.

Our mouthpiece is made of silicone and is very flexible to fit every mouth shape and size.

Purple is the complementary colour to yellow and therefore blocks yellow pigmentation on your teeth. When you apply the 317C serum to your teeth, yellow tones are neutralised.

Peroxides have a high acidity and can attack teeth, enamel and gums. This usually leads to tooth sensitivity and may cause irritation. For this reason, we do not use peroxides in our products.