Amouage Library Collection Opus Xiii - Silver Oud Unisex Eau De Parfum 100ml Top Notes: Elemi, Cypriol, Bergamot Middle Notes: Vanilla, Geranium, Amber Base Notes: Oud, Cedarwood, Birch Lasting:Silver Oud provides very long-lasting silage of 8-10 hours. Its has a deep and woody note that builds up slowly, warming up the room and leaving a lingering impression.