Which treatment uses wavelengths of light to penetrate and destroy the hair bulb?

Laser hair removal uses specific wavelengths of light to target pigments in the hair follicle. This process works by emitting light that is absorbed by the melanin in the hair, which converts the light energy into heat. This heat then travels down the hair shaft to the hair bulb, effectively damaging it and inhibiting future hair growth. The precise targeting and effectiveness of laser technology make it a popular choice for long-term hair removal.

Electrolysis, on the other hand, employs an electric current to destroy the hair follicle, which is a different method altogether. Cryotherapy is focused on extreme cold to treat various skin conditions and does not relate to the destruction of hair bulbs. Galvanic treatments involve the use of direct current for various skin and hair applications but do not specifically target hair follicles using light wavelengths.