Here’s our Ouai Rose Hair and Body Oil Review review. In short: Can’t live without it. At least as a body oil.  What they say: “A head-to-toe hydrator that doubles as a perfume.” Our grade: A Most explicative Sephora comment headline: “Nice for body, not for hair” The Ouai Rose Hair and Body Oil Review: Is there anything that smells as nice as this body oil? OK, so, officially this is a hair oil as well, though it was useless for me — my hair doesn’t love an oil, especially in the summer, so I’m just going to skip that particular functionality.