I first saw the Hidden Crown Hair Bungee Ponytail ($199) on celebrity hairstylist Justine Marjan's Instagram, where she was showing followers how to get a '60s hairstyle. She used the extension on the ...

If you've ever worn hair extensions, you don't need us to tell you how inconvenient and high-maintenance they can be. If it's not clip-ins, which take forever to do yourself (and leave room for human ...