I don't really have acne, but I have about 1-3 zits at all times and honestly it can definitely bring down my self esteem. I did a lot of research on No No before I bought it due to it's high price, and I am pretty much satisfied. If you use it on an existing pimple it takes 2-3 days for them to go away, which is great, but by no means a miracle. But if you use it before the pimple has actual enflamed, the light/heat will basically stop it in it's tracks, which is awesome! My only real complaint is that it does leave red marks on your face for about 15 mins after you use, so give yourself some time to let it cool off.In the end, if you are really embarrassed about your skin I say give it a try. It might not be a miracle, but it might make you feel a little more confident in being you, and to me that feeling is priceless.