2. Look in mirror, compare your teeth with shade guide paper, and record which stage you are in.
3.Apply teeth whitening gel evenly on your teeth (thickness approximately 1mm).
4.Take out the Light after 16 minutes. Rinse your teeth with warm water
5. Compare your teeth with the shade guide again to see how many shades you have improved.
CAUTIONS 1. Not suitable for caps, crowns, veneers or dentures.
2. Not suitable for teeth discoloration caused by lesion or medicine. 3.Not suitable for infected teeth and decayed teeth. 4.Not suitable for defective enamel, exerted dentin and damaged teeth. 5.Not suitable for children under 12 years old and pregnant women.