What type of light does IPL (Intense Pulsed Light) primarily use for treatments?

Intense Pulsed Light (IPL) primarily uses broad spectrum light for its treatments. This type of light encompasses a wide range of wavelengths, typically between 500 to 1200 nanometers, which allows it to treat a variety of skin issues effectively. The broad spectrum nature of IPL enables it to target multiple chromophores in the skin, such as melanin and hemoglobin, making it versatile for applications like hair removal, skin rejuvenation, and the treatment of vascular lesions.

The other forms of light mentioned, such as visible light, coherent light, and infrared light, can overlap with the spectrum utilized by IPL but do not capture its full functionality. Visible light is limited to a narrower range, coherent light refers to light waves that are in phase and of the same frequency (like laser light), and infrared light falls into a specific segment of the light spectrum used for different purposes. Thus, broad spectrum light is the definitive answer, as it highlights the diverse applications and the effective range of wavelengths used in IPL treatments.