Sweaty facial hair in men can be removed by laser. Laser hair removal completely destroys the hair follicles of sweaty hairs, making them incapable of producing hair, and no more sweaty hairs will grow. Laser hair removal is highly selective and can target the hair follicles without causing too much harm to normal skin. Laser hair removal needs to follow a course of treatment, after 3 to 5 times of treatment, you can permanently remove facial hair. Laser hair removal is based on the principle of selective photothermodynamics, reasonable adjustment of laser wavelength energy, through the skin surface layer to the hair follicle at the root of the hair, so that the hair will lose the ability to regenerate. Be careful not to expose your skin to the sun before the laser hair removal procedure, so as not to burn your skin. Make sure that your skin is free of any skin diseases or infections, and that there is no redness, swelling or scarring before the procedure. In addition, do not use hair removal products such as hair removal creams before undergoing the procedure. People who want to remove sweaty hair on the face are advised to choose a regular medical institution and not to do it on their own to avoid adverse effects.