Ingrown Hair Brush: MABUA Ingrown Hair Brush was designed with firm bristles and ergonomically shaped handle to control your ingrown hair. Our Facial brush may be used with any facial wash/cleansers or soap of your choice to exfoliate dead skin cells & allow new growth, clean pores, allow moisturizers to be absorbed, allow easy hair growth, and avoid ingrown hair. Features of MABUA INGROWN HAIR are as followed: Nylon Bristles and Polystyrene handle. For hygienic purposes, it is best to use a new brush every 3 months.