Rub a paper towel

Rub a paper towel on the hair straightener. If this causes smoke or burnt patches, the straightener is too hot. it is not certain that a hair straightener will cause damage to your hair, in any case it will make your hair brittle. The main damaging products are the chemicals and the heat applied to the hair. If you want to get your hair straighten, you should approach a good salon that has experience and expertise performing this process.