GREENS, HERBS AND FOUGERES / green · floral · sweet
Tansy
Category
GREENS, HERBS AND FOUGERES
Subcategory
green · floral · sweet
Origin
Volatility
Heart Note
Botanical
Tanacetum vulgare
Appearance
yellow clear liquid
Odor Strength
High
Producing Countries
France, Hungary, Morocco, Poland
Pyramid
Heart
Bitter, camphoraceous, and faintly toxic-smelling. Tansy oil is herbal sharpness at its most aggressive — closer to wormwood or mugwort than to chamomile, despite being a botanical relative.
Bitter camphor on first contact — sharp, herbaceous, almost solvent-like in its intensity. Less sweet than chamomile, less anise-like than tarragon, more aggressive than clary sage. The mid-phase reveals a dry, dusty bitterness similar to of dried artemisia or wormwood. The base is quietly warm and herbal, with a resinous undertone that recalls dried wildflowers pressed in a book.
Evolution over time
Immediately
Immediately
Sharp camphor-herbal blast — bitter, medicinal, almost wormwood-like intensity
After a few hours
After a few hours
Camphor softens, a dry herbal-green bitterness persists, faintly resinous
After a few days
After a few days
Quiet, dry, herbaceous residue — dusty and warm, like dried artemisia
Terroir & Transformation
Indicative 2025 wholesale prices.
The Full Story
Tansy oil smells like bitterness distilled. It opens with a sharp, camphoraceous blast — closer to wormwood or mugwort than to its gentler relative, chamomile. The bitterness is aggressive, almost medicinal, with a quality that sits between dried herbs and cleaning solvent.
The plant (Tanacetum vulgare) grows wild across Europe and temperate Asia, a yellow-flowered perennial that has been used for centuries in embalming, insect repellent, and folk medicine. The essential oil is steam-distilled from flowering tops, yielding a yellowish-orange liquid whose composition varies dramatically by chemotype. Some populations produce camphor-dominant oils (up to 31%), others are heavy in thujone (up to 34.5%), and still others center on trans-chrysanthenyl acetate (up to 76%). This inconsistency makes tansy oil unreliable without batch testing.
In perfumery, tansy is a trace-dose ingredient. A fraction of a percent adds a bitter-green sharpness to fougère and chypre structures — the herbal edge that keeps an accord from reading as merely clean or soapy. It should not be confused with blue tansy (Tanacetum annuum), a Moroccan species rich in chamazulene that produces a deep blue oil with a much sweeter, fruitier profile. Common tansy is the difficult sibling: harsh, medicinal, and potentially dangerous.
Tansy was historically used in embalming — packed around corpses to repel insects and slow decomposition. In medieval England, tansy cakes were eaten at Easter, supposedly to commemorate the bitter herbs of Passover. The practice was eventually abandoned, likely because tansy oil is acutely toxic: ingestion of as little as 10 drops has caused death in adults.
Extraction & Chemistry
Extraction method: Steam distillation of the flowering tops and aerial parts of Tanacetum vulgare. The resulting oil is yellowish-orange. Chemical composition varies enormously by chemotype: camphor-dominant (up to 31%), thujone-dominant (up to 34.5%), or chrysanthenyl acetate-dominant (up to 76%). The extreme variability means perfumers must test each batch. Yield is approximately 0.1-0.3% from fresh plant material.
Restricted (contains thujone — regulated by IFRA and EU)
Synonyms
BITTER BUTTONS · GOLDEN BUTTONS · COW BITTER
Physical Properties
Odor Strength
High
Lasting Power
12 hours at 100.00%
Appearance
yellow clear liquid
Specific Gravity
0.92500 to 0.93500 @ 15.00 °C.
Refractive Index
1.45700 to 1.46200 @ 20.00 °C.
In Perfumery
Tansy (Tanacetum vulgare) oil is a specialist ingredient, used sparingly for its bitter-camphoraceous bite in herbal and aromatic compositions. It functions as a modifier in fougère and chypre structures, adding a sharp, almost medicinal green that separates an accord from softer herbal notes like lavender or clary sage. Its chemical profile centers on thujone (both alpha and beta isomers) and camphor, with trans-chrysanthenyl acetate as a secondary component. The thujone content varies dramatically by chemotype — from under 3% to over 34% — making batch-to-batch consistency a challenge. Blue tansy (Tanacetum annuum), a separate species from Morocco, is rich in chamazulene and has a completely different, sweeter profile. In leather accords, common tansy can add a bitter-green harshness alongside birch tar or castoreum. Always used at very low doses due to thujone neurotoxicity.
