June 11 (Reuters) - Sirona Biochem Corp SBM.V :
* SIRONA BIOCHEM REPORTS APPROVAL TO TEST HIGHER CONCENTRATIONS OF SKIN LIGHTENING COMPOUND TFC-1067
* SIRONA- HIGHER DOSING EXPECTED TO HAVE INCREASED EFFICACY, POTENTIAL TO WORK MORE QUICKLY THAN CLINICALLY EFFECTIVE DOSE ESTABLISHED FOR TFC-1067