ingredient
Orris Butter
A highly prized concrete obtained from the dried, aged rhizomes of Iris pallida and Iris germanica. Orris butter has a pale yellow, waxy form and an intensely powdery, violet-like, rooty aroma underpinned by irones — its characteristic odourants. It is among the most expensive natural ingredients in perfumery, requiring three to five years of rhizome maturation before processing.