This is what I do with my hair. I wash and condition, then, put on the moisturizer. Twist and let it air dry. Once dry, I untwist and flat iron. My hair turns out great. It's very smooth and straight. I believe the key to getting a great flat iron is making sure the hair is moisturized and conditioned. Dry hair frizzes and won't get straight. I don't know the temperature I use on my flat iron but it isn't high heat, though. I set it to a lower setting. I can get my hair straight or a get a smooth straight curl with one pass.