For removing stains from tea, coffee, wine, nicotine etc. Use: Rub gently on the stains to be removed giving light pressure. Move your stain remover from the gum side towards the (other) end of your teeth. Rinse your mouth with water. Advice: Using your stain eraser once a week is sufficient. Do not try to remove persistent stains at once; forcing is not good. Safe for enamel. Also suitable for dentures.