Thick, oily, with metallic and hydrocarbon undertones. Heavier than a mineral note, less acrid than burnt rubber. Sits between the smoky warmth of birch tar and the cold sharpness of metal. On skin, it can read as a dark, slightly sweet petroleum residue.
Evolution over time
Immediately
Immediately
Sharp metallic-oily impression, cold and industrial
After a few hours
After a few hours
Softens to a warm petroleum residue, slightly sweet
After a few days
After a few days
Faint smoky-mineral trace, almost vanished
The Full Story
Grease as a fragrance note refers to the olfactory impression of petroleum-based lubricants, mechanical workshops, and industrial surfaces. It is not a single molecule but a conceptual accord built from materials that carries metallic, oily, and hydrocarbon-rich environments.
The grease effect in perfumery is typically achieved using combinations of methyl salicylate (wintergreen-mechanical), certain aldehydes, metallic musks, and petroleum-derived aroma chemicals. Iso E Super at high concentrations can contribute a velvety mechanical quality. Some perfumers use cade oil or birch tar to add a smoky-oily quality.
The note belongs to the contemporary school of conceptual perfumery, where industrial and urban smells are treated as legitimate fragrance ingredients. It appears in avant-garde compositions that explore texture and environment rather than traditional beauty.
The characteristic smell of mechanical grease comes largely from naphthenic and paraffinic hydrocarbons, which are clean from crude oil. The human nose can detect these hydrocarbons at concentrations as low as a few parts per million.
Extraction & Chemistry
Extraction method: Not a single extractable material. Grease accords are composed from synthetic and natural ingredients that together replicate the impression of petroleum lubricants and mechanical residue.
Molecular Formula
N/A — not a single compound
CAS Number
N/A — olfactory accord (fatty-oily note)
Botanical Name
N/A — olfactory accord
IFRA Status
No known restrictions
Synonyms
fat, tallow, suint
Physical Properties
Odor Strength
Medium
Appearance
Colorless to pale yellow clear liquid
In Perfumery
Grease is an effect note used in conceptual and urban-inspired compositions. It functions as a textural element rather than a traditional olfactory building block. Perfumers build grease accords using metallic musks, cade oil, birch tar, and certain petroleum-derived synthetics. The note appears in industrial and leather fragrance families, often paired with concrete, asphalt, and metal notes to carries urban environments.
