Since its arrival in the 1990s, laser hair removal has become one of the most popular cosmetic procedures in the world. It targets specific areas of a person's body with laser pulses, the energy of which is absorbed by the melanin molecules in hairs. This essentially overheats and damages the cells in the hair's follicle, preventing it from regrowing. The laser light has to be of an optimal wavelength to prevent its absorption by other molecules in the surrounding skin, which could cause burns.
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Key Facts In This Video
Lasers used for hair removal deliver precise pulses in a matter of milliseconds. 01:18
Laser hair removal relies on the dark melanin in hairs to absorb laser light. 03:15
During a laser hair removal session, laser energy damages the cells inside hair follicles to prevent future hair growth. 04:49