How long should hot rollers heat up before using them? | Sally Beauty

How long should hot rollers heat up before using them?

Most hair setters have either a "ready dot" on the individual rollers themselves or an indicator light that goes on when rollers are ready to use. Hot rollers are heated on posts which are designed to heat up to a maximum temperature, and then to maintain that level. Rollers should not be left on more than 45 minutes.