“…This compound was proposed to serve as a food supplement for weight loss, although hepatotoxic effects also were reported (Hsu et al ., ; Sonko et al ., ; Yellapu et al ., ). Nevertheless, usnic acid was shown to exhibit many other beneficial properties, such as being antiviral against hepatitis C and influenza viruses (Shtro et al ., , ; Wei et al ., ), antibacterial against Mycobacterium tuberculosis (Ramos & Almeida da Silva, ; Cirillo et al ., ) and Gram‐positive bacteria including Staphylococcus aureus (Francolini et al ., ; Paudel et al ., ; Pompilio et al ., ; Tozatti et al ., ), anti‐protozoal (Sussmann et al ., ), anti‐helmintic (Araújo et al ., ), anti‐mitotic (al‐Bekairi et al ., ; Cardarelli et al ., ), anti‐inflammatory (Vijayakumar et al ., ), analgesic (Okuyama et al ., ), anti‐cancer (Yang et al ., ) and herbicidal (Romagni et al ., ). Moreover, the compound absorbs UV light making it a potential ingredient in sunscreen products (Legouin et al ., ).…”