IPL can help acne because the light emitted onto the skin kills off the bacteria under the skins surface and targets inflamed sebaceous glands that contribute to breakouts.
The IPL system filters light in two targeted ways to ensure that only light with the appropriate wavelength is allowed to reach the skin to prevent future acne.
Haemoglobin, the red pigment in the blood, absorbs this light and heats up in the fine blood vessels that supply the sebaceous glands. This causes minor injury to the sebaceous glands, which decrease the over production of oil that leads to acne. However acne is also related to changing hormones.