SRBCF - Sirona Bio's TFC-1067 shows positive effect in skin lightening May, 15 2019 08:01 AM Sirona Biochem Corp Ord Sirona Biochem (OTCPK:SRBCF) announces results of a clinical trial performed in China using its skin lightening agent TFC-1067.More news on: Sirona Biochem Corp., Healthcare stocks news, Read more ...