#SarahMichelleGellar never stops evolving: it's why Olay tapped her to be the face of its newly reformulated Regenerist Micro-Sculpting Cream and why legions of fans have been cheering her on for decades, including the present one—which she lovingly calls her "second act." At the link in our bio, read our full interview with Gellar—but first, join her for a walk down memory lane as she revisits some standout beauty looks over the course of her illustrious career, above. | Allure