Our Teeth whitening serum contains propolis, chamomile extract and gallnut extract. It can remove smoke stains, tea stains, wine stains, coffee stains. Lighten and whiten our teeth, keep our breath fresh, and work to restore your best smile. Its use method is very simple: brush your teeth before use, rotate the bottom to squeeze out a suitable amount of gel, and then evenly apply the gel on your teeth, do not eat or drink for 30 minutes, and then gargle with water, use it every day to get better results, so that you maintain white teeth.