Cosmetic Ingredient

Sodium Usnate

INCI: SODIUM USNATE
CAS 39012-86-7 / 34769-44-3 (D/L isomers) EC 254-248-1 / 252-204-6
2,6-Diacetyl-7,9-dihydroxy-8,9b-dimethyldibenzofuran-1,3(2H,9bH)-dione, sodium salt
Generally Safe
This ingredient has a good safety profile based on available data.
Purpose

Function

Antimicrobial, antiseborrhoeic (sodium salt of usnic acid, a lichen-derived dibenzofuran)
Profile

Properties

Silicone
Silicone free
Malassezia
Safe
Fungal Acne
Safe
Details

Description

2,6-Diacetyl-7,9-dihydroxy-8,9b-dimethyldibenzofuran-1,3(2H,9bH)-dione, sodium salt

Reference

Identifiers

CAS Number
39012-86-7 / 34769-44-3 (D/L isomers)
EC Number
254-248-1 / 252-204-6
INCI
SODIUM USNATE
Category
Cosmetic Ingredient
Updated
Apr 2, 2026