The effect of three-cutting lips is to improve the color, shape and texture of lips. At present, the curative effect of this therapy lacks scientific support, and there are certain risks and side effects. Traditionally, it is believed that cutting the lips three times can stimulate the blood circulation of the lips and increase the redness and fullness of the lips. In addition, some people think that this therapy can also improve the dryness, fading and wrinkles of lips. The validity and reliability of these effects have not been scientifically verified.