Function:

Usnic Acid is used in powders and ointments for the treatment of infections of the skin.

Usnic acid as a pure substance has been formulated in creams, toothpaste, mouthwash, deodorants and sunscreen products,

Usnic acid as an active principle, in others as a preservative.

Usnic Acid can enhance human immunity, 

Usnic Acid have a good curative effects for vaginitis and oral cavity ulcer disease.