GREENS, HERBS AND FOUGERES / earthy · green · woody
Valerian
Category
GREENS, HERBS AND FOUGERES
Subcategory
earthy · green · woody
Origin
Volatility
Base Note
Botanical
Valeriana officinalis
Appearance
pale brown liquid
Odor Strength
Medium
Producing Countries
Belgium, China, France, Germany, India, Poland
Pyramid
Base
Sweaty, rooty, animalic — then unexpectedly warm. Valerian root smells like damp forest floor mixed with old cheese rinds and camphor, with a balsamic undertow that emerges only at distance.
Opening: isovaleric acid hits first — sweaty, cheesy, close to the smell of worn leather shoes left in a damp room. Then bornyl acetate pushes through with a camphoraceous-piney sharpness. At distance, the balsamic-woody body dominates: warm, rooty, with a mushroom-earth quality. Darker and more explicitly animalic than patchouli. Less clean than vetiver. Closer to costus in its funky register, but with more camphor and less lactonic creaminess. The musk-like tenacity in the drydown is genuine — not synthetic musk smooth, but rough, biological, slightly fermented.
Camphor recedes, warm balsamic-woody body emerges, mushroom-earth quality, musky depth
After a few days
After a few days
Persistent dark earthy-musky base, fermented warmth, rooty residue — tenacious on fabric
Terroir & Transformation
Indicative 2025 wholesale prices.
The Full Story
Valerian (Valeriana officinalis) is a perennial herb native to Europe and western Asia. The essential oil comes from the dried rhizomes and roots — drying intensifies the characteristic odor, which fresh roots barely hint at. The oil is olive-green to brownish-yellow, viscous, and immediately polarizing.
The composition varies sharply by origin. GC-MS analyses report bornyl acetate (CAS 76-49-3) at 2.9–33.7% depending on provenance, isovaleric acid (CAS 503-74-2, the sweaty-cheesy molecule, MW 102.13, bp 176–178 °C) at 0–13.1% by hydrodistillation but up to 18.7–41.8% by supercritical CO2 extraction, valerenic acid (CAS 3569-10-6, C15H22O2, the sedative-active sesquiterpenoid) at 8–12%, and valeranone (CAS 8008-88-6, C15H26O, also called jatamansone) at 0.5–10.9%. Camphene, alpha-fenchene (up to 28%), and valerianol round out the profile. Eighty-six compounds have been identified in total.
The isovaleric acid is responsible for the sweaty-foot, ripe-cheese quality. This is the same molecule that gives aged Parmesan and unwashed skin their characteristic tang — it derives from the amino acid leucine. At high concentration it is repulsive; at trace levels it reads as musky-animalic warmth. Bornyl acetate provides a camphoraceous, pine-needle counterpoint. The interaction between these two registers — barnyard and forest floor — is what makes valerian unique among root oils.
The plant contains the alkaloid actinidine, a pyridine monoterpene that triggers euphoric rolling behavior in cats — a response also elicited by catnip (nepetalactone). A 2022 BMC Biology study found that actinidine likely operates through a distinct mechanism from nepetalactone, not through the same olfactory receptors as previously assumed. Most cats do not respond to actinidine at all; those that do exhibit prolonged and behaviorally different reactions.
This note in Première Peau. Simili Mirage · Gravitas Capitale. Sample all seven extraits in the Discovery Set.
Hippocrates (c. 460–377 BCE) described valerian's properties, and Galen later prescribed it specifically for insomnia. The ancient Greeks called the plant 'phu' — almost certainly a comment on its smell. In medieval Sweden, valerian was placed in the wedding clothes of bridegrooms to ward off the envy of elves. The word 'valerian' itself likely derives from the Latin valere (to be strong or healthy), though some scholars link it to the Roman province of Valeria in Pannonia, where the plant grew abundantly.
Extraction & Chemistry
Extraction method: Steam distillation of dried Valeriana officinalis rhizomes and roots. Yield: 0.5–2.0% (highly variable by origin, drying method, and distillation parameters). The roots must be dried before distillation — fresh roots produce a weak, indistinct oil. Drying triggers enzymatic breakdown of valepotriates into free isovaleric acid, which is responsible for the intensified odor of dried valerian. The resulting oil is olive-green to brownish-yellow with high viscosity. Supercritical CO2 extraction yields a chemically different product with dramatically higher isovaleric acid content (up to 41.8% vs. ~13% by hydrodistillation) and different organoleptic character. Major production in Belgium, Germany, Poland, and China.
Restricted — IFRA recommends max 1.0% in fragrance concentrate (due to trace eugenol content, <0.20%). Not prohibited.
Synonyms
VALERIAN ROOT · VALERIANACEAE
Physical Properties
Odor Strength
Medium
Appearance
pale brown liquid
Specific Gravity
0.942 to 0.984 @ 20 °C
Refractive Index
1.476 to 1.503 @ 20 °C
In Perfumery
Valerian root oil functions as a base-note animalic modifier, used at very low doses (typically well under 1%) to inject biological warmth into compositions. The isovaleric acid content makes dosing critical: overdose produces an unwearable dirty-sweaty effect; the right trace amount reads as naturalistic musk-skin depth. Primary fragrance families: chypre (reinforcing the oakmoss-animalic axis), leather accords (adding fermented warmth alongside birch tar and castoreum replacers), and animalic-amber blends. The oil provides a functional alternative to civet and castoreum in formulas seeking natural animalic character without animal-derived materials. No synthetic molecule specifically replicates valerian's profile, though blends of isovaleric acid with bornyl acetate and earthy musks approximate it. Valerenic acid (CAS 3569-10-6), the primary sesquiterpenoid, acts as a GABA-A receptor positive allosteric modulator — the same pharmacological mechanism behind valerian's centuries-old use as a sedative.
