Knowing perfume by Estee Lauder, 2.5 oz Eau De Parfum Spray Unboxed. Launched by the design house of Estee Lauder in 1988, KNOWING PERFUME is classified as a refined, woody, mossy fragrance. This feminine scent possesses a blend of rose, mimosa, jasmine, oakmoss, amber and sandalwood. It is recommended for evening wear.