copper usnate

Copper usnate is the copper (II) salt of usnic acid, a polycyclic compound naturally derived from various lichen species. It functions primarily as an antimicrobial and preservative agent. In the cosmetic and dermatological industries, it is utilized for its potent activity against Gram-positive bacteria, particularly *Cutibacterium acnes* (formerly *Propionibacterium acnes*), which is a key factor in the development of inflammatory acne. Due to its antimicrobial properties, it is incorporated into topical formulations to slow the growth of microorganisms and counteract microbial development on the skin. While it is widely used as a cosmetic ingredient, its specific antibacterial profile has led to its suggestion as a candidate for topical anti-acne therapeutic agents.

Other names

copper (II) usnatecopper diusnatecupric usnateCopper usnate