Need a hair refresh ahead of the glitz and glam of the holiday season? Amazon shoppers call this Kyle Richards-loved hair gloss a "total glow-up in a bottle," swearing it delivers instant shine and that "expensive-glass hair look." Earlier this year, Richards first raved about the Ouai Hair Gloss during an Amazon livestream. While dishing on her winter beauty routine, the Real Housewives of Beverly Hills star said, "If you want shiny hair, this is a great, great product.