This is a Beyond Beauty product which means it has been sourced, tried and tested and finally declared one of the most new and innovative heroes out there. A 100% silicone replacement brush head for Foreo's ISSA Mini. Soft and flexible silicone bristles makes it easy to reach every part of the mouth and won't scratch tooth enamel or damage gum tissue, making it perfect for both children's softer tooth enamel and sensitive gums or for adults who prefer a smaller brush head. Made from medical-grade silicone, the ISSA mini brush head lasts for one whole year and is ultra-hygienic with 10,000x less bacteria than nylon bristles.