I just went today for my first appointment with the light therapy, I have very stubborn cystic acne mainly on my cheeks that I've been battling for about 15 years, this is my last hope. At my appointment today they prepped my face by cleaning it thoroughly with Dermalogica products, than I was put under a blue light for 20 minutes, the blue light is supposed to kill the bacteria, Thursday I return for a 20 minute red light treatment that is supposed to help with the actual acne and redness, in all I will have 8 treatments in 4 weeks. The price of each is $50, I guess it's an introductory offer, I'll keep you posted on my results..by the way I've been using Rodan and Fields line Calm followed by Mederma (another web site said Mederma works on cystic acne) and would have to say that I've seen a significant improvement in my skin, I've been using both for two months, I just hope this light therapy (it's called Omnilux) makes my skin next to perfect!!