What It Is Graphene, the world’s most powerful heat conductor, works in tandem with our signature mineral complex generating Moisturizing Heat, creating the softest, shiniest curls while protecting hair from heat damage. What It Does • The 1.25” extended length barrel, 2” longer than a typical curling iron, quickly creates loose waves and soft curls that will last around the clock. • GrapheneMX infused barrel is for Moisturizing Heat, with an Extended barrel to be used on all hair lengths.