Experts recommend changing facial brush heads every three months for best results…ensure you’re getting the smoothest, healthiest skin possible with this 5-piece Facial Brush Replacement Brush Head Set. Designed to fit your ultrasonic facial cleansing brush, these five brush heads are specifically engineered to address all skin types: Sensitive, delicate, deep pore, acne, and normal. Improve dullness for radiant glowing skin while clearing pores and sweeping away everyday dirt, oil, and makeup. Get the cleanest skin possible while these brushes do all the work. Each brush comes with a convenient cap to keep it protected in between uses.