To get rid of the beard cleanly and stop it from growing, you need to use laser hair removal to destroy the hair follicles and achieve the effect of inhibiting the growth of the beard. Due to the photothermal effect of the laser, the pulse width and wavelength energy of the laser is adjusted to act on the hair follicles in the beard area. The melanocytes in the hair follicle will absorb the laser light and convert it into heat energy, resulting in the destruction of the hair follicle tissue, which will become inactive and will not grow hair again, thus solving the problem from the root. Laser hair removal can be divided into color light hair removal, photon hair removal and ice point painless hair removal, etc., the principle of hair removal is the same. Generally, multiple treatments are needed to achieve permanent hair removal. After the treatment, you need to pay attention to sun protection and avoid using alkaline toiletries. It is recommended that patients with long beards consult a doctor in time and follow the doctor’s advice to choose the appropriate hair removal method.