IPL stands for Intense Pulsed Light. So, an IPL device uses bursts of light to get rid of unwanted hair, as well as slowing the re-growth process. And, if you’re hoping to stop hair growth all together, it’s recommended that you’ll need 8-10 treatments in total over a longer period of time. Please bear in mind that if you’ve got darker skin or lighter hair, you should avoid using an IPL because it may cause irritation.