Difference between hair straighteners?

All hair Straighteners will damage your hair if you a constantly using it but CHI is supposed to be a really good brand name also conair but CHI dose not damage the hair as much as other ones wont . to protect your hair use a heat Protector spray and it will also help protect against damage the Tresemme is really good so to be honest they will all but conair is really good line don't wast your money and buy another one when you have a great one already . Good luck :)