Wafting through the vents and down the catwalk at the most recent Saint Laurent show in Paris was a scent so heavy and intoxicating that guests immediately identified it as Opium. Laden with patchouli and spice, it belongs to a decade that gave us some of the most iconic fragrances — Chanel No 19, Dior Diorella and Estée Lauder Cinnabar — and one that is saturating the fragrance world right now. “There has been a noticeable shift in what people are drawn to. We’re seeing more interest in fragrances that feel textured, warm and nostalgic,” says the Liberty beauty buyer Nicole Zimbata.