Resins are natural, sticky substances obtained from the sap of various trees, including pine, frankincense, myrrh, and benzoin. In perfumery, resin notes are used to add depth, warmth, and a sense of earthiness or spirituality to compositions. They are typically featured as base notes in woody, oriental, and chypre fragrances, contributing to the longevity and richness of perfumes.

Resins have a rich, warm, and balsamic aroma with earthy, sweet, and slightly smoky undertones. Their scent is often complex and multifaceted, with hints of wood, spice, and incense. Depending on the type of resin, the profile can range from sweet and honeyed to smoky and resinous. The overall character is deep, grounding, and sometimes slightly mystical, adding a luxurious and complex dimension to perfumes. Resins provide warmth, complexity, and lasting power to fragrance compositions.