Good hair days are taking over Flatiron! OLAPLEX is celebrating the launch of Shape Set, its first-ever hairspray, with a larger-than-life NYC pop-up on September 12 and 13. Stop by Flatiron Plaza for a photo-worthy activation, complimentary Shape Set samples, OLAPLEX merch, and more, with an extra perk for early birds: the first 50 attendees each day can score a full-size 245ml Shape Set Hairspray, while supplies last.