Garnier’s "Diamond Sleek Retreat" in Miami is a masterclass in performance-led experiential retail. Featuring a high-tech "humidity box" and live styling bars, the pop-up transforms haircare into a sensorial urban ritual. With new global ambassador Gisele Bündchen at the heart of the narrative, the prismatic, seafoam-green space moves beauty from marketing claims to physical proof, creating a co-creation ecosystem for creators and consumers alike.