What it is: A ceramic-barrel brush that retains its heat to allow for a faster, more voluminous blow-dry.What it does: It's ideal for an easier blow-dry on extra-long hair or maximum volume in mid-length hair. How to use: Blast hair until it's 80% dry. Working with medium sections, place the brush into the root area and direct the heat from your dryer at the barrel. Keep the tension as you move the brush through your hair, directing heat at the barrel as you go. To create soft waves, dry each section and then wrap it around the brush. Direct heat from your dryer on to the barrel of the brush and then leave to cool for 30 seconds. Blast with the cool shot on your dryer before gently unwinding the section.