Birch, derived from the bark and wood of the birch tree (Betula), is a woody note in perfumery known for its smoky, resinous, and slightly leathery character. Often used to add depth and complexity, birch is frequently found in woody, leathery, and oriental compositions. Its rich, earthy aroma evokes a sense of warmth and ruggedness, bringing a natural, outdoorsy quality to fragrances.

Birch has a warm, woody aroma with smoky and resinous undertones. Its scent is dry and earthy, with subtle leathery and slightly sweet nuances that add complexity. The overall profile is deep, rich, and grounding, reminiscent of a forest floor or a crackling fire. Birch brings a natural, robust warmth to perfumes, adding a bold and sophisticated character to fragrance compositions.