Thanks in part to Ariana Grande's signature ponytail, half-up, half-down styles are making a major comeback after their renaissance in the late '90s. Though we'll always love the way Topanga and ...

It's a trendy hair bump, in a box! You've probably seen the commercials for Bump It! hair inserts and wondered how--and if--these thingamajiggies work. Naturally, I had to road-test 'em. (Even though ...

As the results of Petra's Bumpit Volumizing Hair Inserts experiment showed, there's just something about a well-proportioned mound of height that instantly makes a simple 'do just a little more chic.