Fragrance notes starting with "U" are quite rare compared to other letters, but they include unique botanical and atmospheric scents.
Udambara: A rare floral note from the Ficus racemosa tree, often associated with a legendary flower in Buddhist texts that is said to bloom once every 3,000 years.
Ultramarine: Not a botanical ingredient, but a synthetic "fantasy" note used to evoke the smell of deep ocean water or fresh marine air.
Ume (Japanese Plum): A popular note in Asian-inspired perfumery, offering a tart, sweet, and slightly floral aroma similar to a cross between an apricot and a plum.
Undergrowth: An accord used to replicate the earthy, damp smell of the forest floor, including decaying leaves and soil.
Urea: While it sounds unusual, synthetic urea is sometimes used in trace amounts to provide a warm, slightly animalic, or "skin-like" muskiness to a base.
Uva Ursi (Bearberry): A botanical note that provides a dry, herbal, and slightly woody scent, often used in green or medicinal fragrance profiles
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