I am getting the keratin treatment next saturday and my stylist is using a curling iron after the treatment instead of a straightening it out! Has anyone tried this? I do not want to have very straight hair, I just wants less poofy/frizzy thick curly hair (i have 2c). I am a little nervous to get the treatment because I don't want to ruin my hair! I also workout alot and don't want the results to go away because of perspiration, any tips?