Yes, you can use the teeth whitening pen alone. your purchase includes 5 teeth whitening pens which you can use it for a month.

however we recommend using them with the LED whitening boost

While our teeth whitening products are designed for no or minimal sensitivity, in your case we would suggest keeping using them, and if the sensitivity worsens or you feel pain, stop immediately.

We also advise you to contact customer care, as we are launching peroxide-free whitening products that will have less sensitivity compared to the one powered by hydrogen peroxide.

If first time using, twist the gel at the bottom you will hear a click sound.

Keep twisting until gel appears on the brush tip. then apply a small amount of gel to your upper and lower teeth.

Ideally, you wear the LED whitening boost on your teeth after you apply the teeth whitening pen to your teeth.

If it's not charged, charge it for 2 hours and then you can use it for 3-5 times.

To turn on the LED whitening boost, press and hold it on your thumb for 3-5 seconds. 

Yes, the teeth whitening gel expires 2 years after the manufacture date.

See the expiry date at the bottom of the pen.