Thomas Kosmala No. 12, also known as Oud Douze, features a blend of saffron, rose, sandalwood, cashmere, amber, patchouli, oud, vanilla, and absolute musk. These ingredients are categorized into top notes (saffron and rose), heart notes (sandalwood, cashmere, amber, and patchouli), and base notes (oud, vanilla, and absolute musk).