As some of the other posters stated if it aint broke don't fix it. Back when I was permed and transitioning I used indian hemp grease to flat iron and the new growth would revert no problem. I would use grease now to flat iron but more natural oils like Oyin burnt sugar I do have Fantasia IC heat protectant just to see how it works. I do believe her hair is so healthy because she does deep condition before her presses so that maybe has something to do with the fact that her hair is so healthy despite the use of grease