This high-tech WetBrush Time Release Detangler ($25) uses time release technology to help your hair remain smooth and tangle-free for up to three days. I'll admit it sounds a little gimmicky, but I was blown away by how noticeably smooth my hair remained days after spraying this on. My typically tangled postsleep hair combed through without so much as a tug or snag come morning, and for that reason alone, I am a believer and fan.