Pale yellow to yellow waxy paste, solid at room temperature (m.p. 40–46 °C)
Odor Strength
Medium
Producing Countries
Italy (Tuscany), Morocco
Pyramid
Heart
Cold, powdery, bone-dry violet. Orris root smells like face powder pressed into a suede glove — a mineral coolness so tactile it registers more as texture than fragrance. Nothing sweet, nothing warm. Just grey velvet and clean earth.
Colder than any other powdery material. Drier than violet, less sweet than heliotrope, more mineral than mimosa. The initial impression is faintly carroty and earthy — raw rhizome, damp clay — a vegetal quality present in the butter but absent from synthetic ionones. Within minutes the irone character emerges: a cool, grey, powdery-violet dryness with a metallic undertone, like touching cold stone wrapped in silk. Compared to ionones, which tend toward fruity sweetness, irones are smoother, more angular, with a suede-like grain that feels structural rather than decorative. In the far dry-down, a clean waxy base note persists — myristic acid giving the scent its extraordinary tenacity.
Evolution over time
Immediately
Immediately
Earthy, faintly carroty, with a raw damp-clay quality. The rhizome origin is unmistakable — vegetal, slightly bitter, not yet powdery.
After a few hours
After a few hours
The irone character fully unfolds: cool, grey, powdery-violet, with a metallic mineral dryness and suede-like texture. Cold and angular, almost architectural.
After a few days
After a few days
A clean, waxy, quietly powdery persistence. Myristic acid anchors the fading irone traces into a skin-close whisper that lasts 24-48 hours on fabric.
Terroir & Origins
Indicative 2025 wholesale prices.
The Full Story
Orris is not extracted from iris flowers. It comes from the rhizome — the underground stem — of Iris pallida, dug up after three years of growth, peeled, dried, and then aged for a further two to five years in controlled storage. During this post-harvest curing, enzymatic oxidation converts odorless iridal precursors into irones: a family of C14 ketones that define the orris scent. The key odorant is cis-alpha-irone (CAS 79-69-6), responsible for the powdery-violet signature. Iris pallida produces dextrorotatory (+) irone enantiomers; Iris germanica produces levorotatory (-) forms, yielding a subtly different, earthier character.
Hydrodistillation of the aged, pulverized rhizomes produces orris butter (orris concrete) — a pale yellow, waxy paste that solidifies at room temperature due to its 85-90% myristic acid content. The irone fraction in commercial orris butter ranges from 8% to 15%, with higher-irone grades commanding exponentially higher prices. Solvent extraction yields orris resinoid, a heavier material retaining more of the fatty-waxy components. Yield is brutally low: approximately 1,000 kg of fresh rhizomes produce 300 kg of dried, peeled material, which yields roughly 2 kg of orris butter.
The principal growing region remains Tuscany — the hills around Florence, Greve in Chianti, and San Polo — where Iris pallida has been cultivated continuously since at least the fifteenth century. Morocco (mainly Iris germanica) is a secondary source. Because of the multi-year production cycle and microscopic yields, orris butter is among the most expensive natural materials in perfumery. Synthetic alternatives include alpha-isomethyl ionone and methyl ionone gamma, which approximate aspects of the powdery-violet character. But natural orris butter possesses a mineral coldness and a suede-like tactile dryness that no synthetic fully replicates. Premiere Peau's Doppel Dancers explores the iris-skin territory — the place where orris meets bare warmth.
This note in Première Peau. Nuit Elastique · Rose Monotone. Sample all seven extraits in the Discovery Set.
Orris butter is roughly 85% myristic acid — the same saturated fatty acid found in coconut oil and nutmeg butter. This is why it solidifies into a waxy paste at room temperature and must be gently warmed before use. The precious irone molecules responsible for the scent constitute only 8–15% of the material; the rest is, chemically speaking, expensive soap.
Extraction & Chemistry
Extraction method: Iris pallida rhizomes are harvested after 3 years of growth, peeled, dried, and aged in controlled storage for 2–5 additional years. During curing, enzymatic oxidation converts odorless iridals into aromatic irones. The aged rhizomes are pulverized and hydrodistilled to produce orris butter (concrete) — a pale yellow waxy paste, solid at room temperature (m.p. 40–46 °C), composed of 85–90% myristic acid with 8–15% irone content. Solvent extraction yields orris resinoid (heavier, waxier, 2.4–3.3% yield with benzene). Steam distillation yield: approximately 0.2–0.3%. In absolute terms: ~1,000 kg fresh rhizomes → ~300 kg dried material → ~2 kg orris butter. Principal production: Tuscany, Italy. Secondary source: Morocco (Iris germanica).
Restricted (max 8% in fragrance concentrate per IFRA recommendation)
Synonyms
Iris root, Orris
Physical Properties
Odor Strength
Medium
Lasting Power
High
Appearance
Pale yellow to yellow waxy paste, solid at room temperature (m.p. 40–46 °C)
Flash Point
> 200.00 °F. TCC ( > 93.33 °C. )
Specific Gravity
0.934 to 0.946 @ 25.00 °C.
Refractive Index
1.497 to 1.502 @ 20.00 °C.
In Perfumery
Orris root functions as a heart-to-base material with notable fixative and blending properties. Perfumers describe its effect as ‘noblesse’ — a smoothing, refining influence that makes surrounding notes smell more expensive without imposing its own character. At sub-threshold doses, it acts as a lifting agent for heavy bases and a bridge between fresh citrus tops and ambery-mossy foundations. In iris soliflores, orris butter provides the cold, powdery skeleton. In chypre constructions, it links bergamot to oakmoss. In floral-aldehyde structures, it softens metallic edges. The material is indispensable in powdery florals and skin-scent accords. Natural orris butter (8–15% irones) remains irreplaceable for its mineral coldness and tactile dryness.
