Laser hair removal generally has no side effect.
Laser hair removal is based on selective optothermal dynamics principle, listing steps below.
S1, Reasonable adjustment laser wavelength, energy, pulse width
S2, Laser can through the skin surface to the root of the hair follicle
S3, Light energy is absorbed and translated into damage hair follicle tissue heat energy
S4, Hair loses regeneration ability
S5, No damage to the surrounding tissue, with slight pain.
Thus it can be seen that laser hair removal will not affect perspire.
Hint: perspire depend mainly on eccrine gland, and eccrine gland does not open in hair follicle.
Medical scientists can also tell those seeking beauty. Hair follicle and sweat gland is independently of the two organizations.
Hair grows from hair follicle, meanwhile sweat gland is beside the hair follicles, so both aren't the same thing.
Permanent hair removal damages the hair follicles, makes hair no longer grow, it does not damage the sweat gland, so have no side effect to perspire.