Costus oil opens with a startling animalic warmth — the smell of fur, wet hair, and human scalp. Beneath that surprising start, you find a soft woody-rooty core threaded with violet and orris facets. The fatty quality lingers and slowly turns powdery. This is your secret weapon for vintage chypres, orientals, and any composition that needs a pulse of human warmth. A trace dose lifts a floral heart into something animal and alive. Pair it with rose absolute and orris butter for a richly warm natural accord. Jean Carles famously used a whopping 0.6% pure in Miss Dior. Our oil comes from costus farmed in its native Himalayan habitat — same soil, same altitude, same climatic stress that shapes the wild plant. The result preserves every facet of the wild character. Use it in trace amounts; even a tiny addition reshapes the composition entirely. Costus features in several of our demo formulas (see below), such as YSL Homme, Dana Tabu, Femme by Rochas, and Patou Pour Homme. Costus Root Tincture, a related preparation made from the same root, also threads through our Mitsouko, and L'Origan reconstitutions. NOTE: Costus oil has an IFRA prohibited specification so this should not be used in fragrances that are required to comply with IFRA standards. Costus Oil is on CITES Appendix I. That means, for now, we can't sell it from New Zealand. We are working on a solution.