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Treemoss

Rêu Cây

Pseudevernia furfuracea

Usneaceae · Địa y trên cây · Lichen on trees · Solvent-extracted (absolute)

Treemoss (Pseudevernia furfuracea) — botanical illustration
Pseudevernia furfuracea

Safety

IFRA restricted · Skin sensitization HIGH

Treemoss is a lichen growing on tree trunks (oak, conifer). Different from oakmoss (Evernia prunastri) in the same family.

Very high skin sensitization risk due to atranol and chloroatranol.

Recommended dermal maximum 0.1 percent. Combined limit with oakmoss applies.

Avoid on sensitive skin, damaged skin, children under 2.


Usage guidelines

Maximum dermal level
0.1 percent
Storage
Dark, sealed, room temperature

Chemistry

Volatile constituents
Methyl β-orcinolcarboxylate3.6 %
Physodone4.7 %
20-o-Methylphysodone1.1 %
Atranol0.3 %
Chloroatranol0.2 %

Botanical source

Pseudevernia furfuracea is a temperate European lichen growing on trees.

Family Usneaceae.


Notes

A classical chypre base note in perfumery. Now strictly limited in use.