What's the difference between Laser and IPL?
The key difference between Laser and IPL is the type of light. IPL (Intense Pulsed Light) is a incoherent light source, whereas Laser is a monochromatic coherent light source. Both methods target the melanin in the hair follicle and permanent results can be expected from both.
Monochromatic light that is used in Lasers is a stream of very focused wavelengths of light, which make it very powerful. The monochromatic light in lasers is strong enough to vaporize skin cells and can be used to perform laser skin resurfacing for very dramatic outcomes after just one treatment.
Incoherent light that is used in IPL produces many different wavelengths. Just like the laser technology, this light is also absorbed by specific structures in the skin and produces a heating / damaging outcome to specific cells. Because this light is more diffused the heating is typically less intense.
The benefit of these properties of incoherent light in IPL devices is that the treatment can target a broader number of skin structures at once (because a broader spectrum of light wavelengths are delivered to skin at the same time).