Always make sure your flat iron plates are clean, use a soft damp cloth on a cool iron to wipe away any residue. You don't want to be using dirty straighteners on your clean, shiny hair!Turn on your purple ghd set and let them heat up. When they're at maximum temperature, a beep will sound and the LED will begin to flash. It takes around 20 seconds for new ghd rare straighteners to reach maximum temperature, depending on the temperature of the room you're in. Then, to start with, take a portion of hair and run your brush or comb through that section to make sure that all the hair is untangled. Clamp your hair with the straighteners near to the root then run them slowly down towards the end of your hair.