Our denture cleaning effervescent tablets contain lemon extract, mint extract, and EDTA disodium. They can effectively remove stains from the surface of dentures, keeping them fresh and clean. They also effectively kill bacteria, ensuring the health of your dentures. The usage is very simple: 1 Place the cleaning tablet into warm water at about 40 degrees Celsius, without stirring.2 Place the dentures/retainer in and soak for 15 minutes.3 Before wearing dentures and retainers, wash them with water or a soft-bristled brush. This brings a fresh taste and removes odors. Effectively removes stains and keeps dentures clean. Enhances the cleaning effect and is gentle and non-irritating