Brand from Japan: Sunstar. Intensive teeth whitening once a week.Intensive removal of stubborn stains and tooth stains that are difficult to remove with regular toothbrushing!For whiter, smoother and glossier teeth.Contains the highest concentration of stain removal ingredients (cleaning agent) in the history of Aura Two toothpaste.Reward care once a week.Mild feel that makes it easy to brush thoroughly.Stain control ingredients suppress the adhesion of stains and keep your teeth naturally white.Whiten teeth, remove tar, and prevent tartar buildup.Premium mint flavor full of refreshingness.How to use:Apply an appropriate amount (pearl-sized) on a toothbrush, brush as you would normally brush your teeth, then rinse with water.Can also be used to polish areas where you are particularly concerned about colored stains.This product is a highly effective toothpaste that removes discolored stains from teeth. We recommend using it about once a week.