In 2007, Danlong launched the first domestic facial cleansing instrument DL-B506, and then became the first brand of facial cleansing instrument exported in China for 7 consecutive years. There are two speed adjustments in the Danlong Facial Cleansing Device, the green light is used for daily cleansing and the red light is used for exfoliation. Its bristles are between 0.05-0.07mm in diameter, which is thinner than human hair, soft and close to the face, and not easy to rub excessively. However, the Danlong process is not good, the bristles will have a pungent smell, and the durability is not high, and the price of 499 yuan is not cost-effective.