... white and white powder Quality and Specification 15%, 25%, 50%, 80%, 90%, 95%, 98% Testing ways: HPLC SourceUrsolic acid, also known as urson, prunol and ... 15, RU25, RU50, RU80, RU90, RU95,98%DiscriptionLight white and white powderQuality and Specification15%, 25%, 50%, 80%, 90%, 95%, 98 ... ingredient with very low overall toxicity (both chronic and acute) .b.It has been termed dermatologically ...