"I'm a slave to my curling iron. I can go a few days without washing my hair, but I touch up my waves daily. And I know all that heat styling adds up — I have the fried ends to prove it. Well, the Bio Ionic GrapheneMX Curling Iron ($169) is here to save my hair with a gentler type of heat. It's infused with Graphene, a newly-discovered natural mineral that conducts high temperatures like a champ (it's so good, NASA is using it) without compromising the health of hair. It's only been a few days, and I'm already noticing a difference." — Dawn Davis, senior editorial director, Native and Beauty