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 minimal sensitivity and most users can handle it, in your case we would suggest keeping using them for 3-4 days, 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 30-120 minutes and then you can use it for 2-5 times. before you need to recharge again.

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.

Yes, the LED whitening boost is rechargeable; the first time using it, charge it for at least 30-60 minutes; a full charge can take up to 2 hours. When it's charging, a red color shows up in the power button, and when it's fully charged, it will show a green color in the power button. safely remove the charger then, and you can start using it.