Brush, dry it with a tissue.
Twist Pen base to spread the gel on the brush.
Smile with the dimensions of the lips from the teeth (in front of the mirror) and spread thin layer on the front section of the teeth.
After being placed do not eat anything for half an hour.
Used twice a day, it penetrates the enamel of natural teeth and void on industrial installations or fillings.
Gives instant results within two weeks.