Our Teeth Whitening Serum contains Mentha Arvensis Extract, Citric Acid, Xylitol. It can effectively remove tooth stains, whiten teeth, make you say goodbye to black and yellow teeth, have a more confident smile, can effectively inhibit the increase of dental plaque, provide comprehensive oral care, so that you can maintain oral health. Its use method is very simple: when brushing your teeth in the morning and evening, drop 1-2 drops of essence on the toothpaste, brush your teeth normally, after brushing your teeth, apply the right amount of essence on your teeth with a cotton swab. The product contains the pleasant taste of mint to keep your breath fresh and your mouth comfortable all day long.