Honestly, you don't need something like a CHI, but if you decide on one---or any one---for that matter, remember to keep the setting low. Heat is a main factor in AA's having brittle, broken-off hair. Once the hair is relaxed, the wave pattern is broken down and the hair is in a weaker state. Much less heat will get you good results. I have a Jilbere Ceramic Flat Iron (from Sally's) and a Hot Tools Ceramic Barrel (I LOVE this iron, got it from a Pro Supply place). Out of 25 settings, I use #3.