Step 1: Make sure that your hands are clean and dry.
Step 2: Click the plastic head, containing a stain eraser sponge, on the device.
Step 3: Gently shake the iWhite Express teeth whitening serum.
Step 4: Activate the stain eraser sponge by putting several drops of the iWhite Express teeth whitening serum onto the sponge.
Step 5: Gently rub the teeth with the flat side of the sponge and with vertical up and down movements. If the sponge gets damaged, use a new plastic head.
Step 6: Make sure the sponge stays moist during use. If needed, re-apply several drops of the iWhite Express teeth whitening serum.
Step 7: Rinse your mouth with water or a mouthwash.
Step 8: Remove the used stain eraser sponge from the plastic head and dispose. Wash the plastic head if you re-use it for the new stain eraser sponges.
Maintenance: After each use, clean the device with water. Do not use solvent-based cleaners.