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Oakmoss Absolute

Description

A foundational material for classic chypre and fougère compositions, this absolute presents a deeply complex and tenacious scent profile. Its character is primarily dry and earthy, evoking a forest floor with prominent cortex and resinous woody notes. The intricate aroma of Oakmoss Absolute also carries distinct leathery undertones, further layered with nuances of pine, herbaceous hay, and a hint of dry tobacco. Derived from the Evernia prunastri lichen, its chemical makeup, including components like evernic acid and atranorin, gives it a unique, slightly saline seaweed quality that enhances its naturalistic feel. This material is highly valued not only for its scent but also for its superior fixative properties, adding substance and longevity to a formula.

Due to the presence of potential sensitizers like atranol and chloroatranol, the use of traditional Oakmoss Absolute is heavily restricted. Modern perfumery now relies on low-atranol versions that retain the core olfactive signature while meeting regulatory standards. It is most effective when used with precision, typically at dosages from 0.1% to 0.5%, to lend its signature mossy depth. In application, it forms the structural base of the chypre accord when combined with bergamot and labdanum. It also works well alongside vetiver, galbanum, and patchouli, enriching green and woody blends, and providing a grounding counterpoint to bright citrus or rich floral absolutes.

General Information

Alt NameEvernia prunastri lichen oil
CategoryAbsolute
CAS Number68917-10-2

Organoleptic Properties

Odor Family
Earthy/Mossy
Odor Strength
1
2
3
4
5
Odor DescriptionCortex, Dry, Earthy, Leathery, Oakmoss, Resinous, Woody
Usage Level0.2% in the fragrance concentrate
Substantivity600 hours at 100%

Physical Properties

AppearancePale oilve yellow oily liquid (est)
StorageStore in cool, dry place in tightly sealed containers, protected from heat and light.

IFRA

Standardhttps://ifrafragrance.org/standards/IFRA_STD_067.pdf
CategoryFragrance agents
Critical EffectDermal sensitization
Restrictions
Usage limits in the finished product
Cat. 1Category 1:0.02 %
Cat. 2Category 2:0.016 %
Cat. 3Category 3:0.1 %
Cat. 4Category 4:0.1 %
Cat. 5ACategory 5A:0.076 %
Cat. 5BCategory 5B:0.076 %
Cat. 5CCategory 5C:0.076 %
Cat. 5DCategory 5D:0.076 %
Cat. 6Category 6:0.18 %
Cat. 7ACategory 7A:0.1 %
Cat. 7BCategory 7B:0.1 %
Cat. 8Category 8:0.032 %
Cat. 9Category 9:0.1 %
Cat. 10ACategory 10A:0.1 %
Cat. 10BCategory 10B:0.1 %
Cat. 11ACategory 11A:0.1 %
Cat. 11BCategory 11B:0.1 %
Cat. 12Category 12:100%

Safety Information

PictogramsGHS07: Harmful
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