Skin Sensitization: Local Lymph Node Assay: BrdU-Flow Cytometry Method（LLNA: BrdU-FCM）

On January 12, 2026, the China National Medical Products Administration (NMPA) announced the incorporation of four test methods into the Safety and Technical Standards for Cosmetics 2015 (STSC). This method is applicable to the detection of skin sensitization of chemical ingredients used in cosmetics.