I've been using photon Genius and genie for many years now it has saved my life for several reasons . There is research and photon genie and genius are both approved by the European Union which is far stricter than FDA. I own a photon Business and have had people with many ailments who test much more positive with real real lab results. I got someone out of wheelchair chair after 4 treatments. Anyway I'm closing my business and selling a used photon genie for $2500 new it $3140 after tax & ship. I'm also selling my used Photon Genius for $21,900 which is $4000 less than new one. Plz watch my you tube and testimonials