Review title is Temperature is in Celsius [SEP] Right now, I am loving this combo straightener and curling tool. It heats up to 430 degrees, but it is in Celsius, so look at the conversion for your hair. It heats up very fast. I straightened a piece of hair and then curled it. It did a good job. I am tempted to do my entire head. What I really like is the extra long grip that keeps you from burning your fingers