I have been using a Chi iron for 4 years. Last year I began to notice that I had more split ends. I tried several cuticle conditioning treatments, less product, etc... but nothing was preventing new splits. My daughter told me to try GHD. Never thinking that maybe it was the type of iron, I was skeptical but I bought it and I can report that I have not had new split ends. It works so well I am now using very little product on my hair.