I think a lot of Deva stylists put enough product on the hair that even straight hair could curl. Sorry, I just dont like that "load the client up on products" approach. I used to go to a salon that had many Deva trained stylist, and when I walked out I could not wait to go home and wash all the products out of my hair, I could not believe how much they used. My hair felt like cotton candy, like it was glued in place. No thanks. Sorry if I am off topic.