AT A GLANCE Isla Fisher stars in the new comedy movie, Spa Weekend. The 50-year-old's hairstylist revealed he uses the Pro Goddess Leave-In Treatment, $40 £25He called it "the perfect foundation for healthy hair." © Getty Isla Fisher glowed at the 2026 Vanity Fair Oscar PartyStyling Isla's hair for the 2026 Vanity Fair Oscar Party, Chad revealed how he achieved her full, glossy looking hairstyle. After using the Pro Goddess Shampoo and Conditioner, he worked the Pro Goddess Leave-In Treatment through Isla's hair, before blow-drying to create volume. © Instagram Isla and Spa Weekend stars Leslie Mann and Adam DemosWhat do verified shoppers say about Pro Goddess Leave-In Treatment?