Twist the pen clockwise for around 10 rounds to get gels out of the pen when using it for the 1st time.
Brush gel onto clean, dry teeth, avoid the gums. Reduce lips movement as much as possible and let the whitening gel sits for at least 30 minutes.
After the 30 mins is up then you rinse your mouth with fresh clean water foe 30 seconds. People may swallow a small amount of gel applied on teeth together with saliva, which is safe.
For the best results use twice per day (In the mornings before you start your day and at nights before you go to sleep)