Usnic acid is a circuitous polycyclic actinic admixture produced by itself by assertive lichens species.1 Lichens absolute Usnic acid accept been acclimated as acceptable medicines and awkward drugs in added countries. Usnic acid as a authentic actuality has been formulated in creams, toothpaste, mouthwash, deodorants and sunscreen products, either as an alive assumption or a preservative. FDA has not accustomed any acceptance from industry on the assurance or use of this actuality in corrective products. In contempo years, Usnic acid and its alkali form, sodium usniate, accept been marketed in the US as an additive in comestible supplement articles (mostly with claims as weight-loss aides, admitting some as antimicrobial agents).
