As with every laser device, you need to take your pain tolerance into account. If you have normal pain tolerance, you should be fine. The norm is a warm, tingling sensation. From experience, I was fine until level 4/5 but the 5/5 I had to build up to. If your worst nightmare starts with the buzzing of an epilator, the high energy levels may be painful for you. One common option to reduce the sting is to use numbing creams like the ones used for tattoos and ablative laser resurfacing treatments. (eg. Clinical Resolution Non-oily Numb Master Topical Anesthetic Cream, Numb100 Doctor recommended Fast Penetration Pain Relief Cream).  Just make sure you passed the patch test first before putting it on AND wash off all traces before using the device. (NOTE: This is a generic hack, LumaRx DOES NOT endorse this method nor do they recommend using any creams at all. Please do this at your own risk.) If you’re going this route, patch test first! Pain tolerance and skin sensitivity is different and you need to address them separately. You have to first check that your skin does not have adverse reactions to the energy level you choose before putting any cream on it.