USNIC ACID is graded A (Safe) by Expert·ING, based on COSING regulatory data.
USNIC ACID
Safety grade: A
Usnic acid is a natural compound found in certain lichens that has germ-fighting properties. It works to keep products fresh and protect skin from unwanted bacteria and fungi.
This ingredient is used in cosmetics to prevent the growth of bacteria and fungi, helping to preserve the product and maintain skin health.
Graded using: COSING.
Last verified: May 26, 2026
Other Antimicrobial ingredients
- ALCOHOL — Grade A**
- C12-15 ALKYL BENZOATE — Grade A
- BENZYL BENZOATE — Grade C
- CETRIMONIUM CHLORIDE — Grade A
- CHLORPHENESIN — Grade B
- CAMELLIA SINENSIS LEAF EXTRACT — Grade A
- HYDROGEN PEROXIDE — Grade C**
- CETYLPYRIDINIUM CHLORIDE — Grade A