https://pmc.ncbi.nlm.nih.gov/articles/PMC5739313/
Review of Usnic Acid and Usnea Barbata Toxicity - PMC
Usnic acid is a prominent secondary lichen metabolite that has been used for various purposes worldwide. Crude extracts of usnic acid or pure usnic acid have...
usnea barbatareviewacidtoxicitypmc
https://www.mdpi.com/2076-3921/11/8/1601
Evaluation of Usnea barbata (L.) Weber ex F.H. Wigg Extract in Canola Oil Loaded in Bioadhesive...
Usnea lichens are known for their beneficial pharmacological effects with potential applications in oral medicine. This study aims to investigate the extract...