Is Smiliies whitening gel harmful to health?

Not at all! The Smiliies whitening pen is composed of an ultra-resistant whitening gel that is not harmful at all. All our products are tested and approved. 

How should the whitening gel ideally be applied?

Ideally, start by brushing your teeth to apply the gel on clean teeth for better resistance. Then, once your teeth are dry, apply a thin layer of gel to each of the teeth you wish to whiten and spread it over the entire surface of the tooth. Avoid applying the gel to your gums. Then, try not to eat or drink for 30 minutes so that the whitening gel can slowly take effect on your tooth enamel.

How often do you recommend using it?

It depends on you and the shade you want to achieve. However, we do not recommend using it more than twice a day. Ideally, it should be used 5 to 6 times a week.

How long will the whitening pen last ? 
The Nourishing & Whitening™ Pen should last for 25 to 30 applications.