This brush is essential for your daily skin care. It can remove dirt and sebum hidden in skin pores. Ultrasonic cleaning is a sonic micro-vibration massage process created by sound waves that are transmitted at frequencies of over 300/s. It shows a powerful effect 7 times that of traditional face-washing and makes follow-up skincare products properly penetrate your skin. With continued use of the machine, it can refine pores, smooth wrinkles, improve the complexion, and make skin smooth and bright.