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The National Medical Products Administration (NMPA) has organized the drafting of seven testing methods, including the Testing Method for Overly Hard Particles in Toothpaste. These methods have been reviewed and approved by the Chairperson Meeting of the Cosmetics Standardization Technical Committee of the NMPA and have been incorporated into the relevant chapters of the Safety and Technical Standards for Cosmetics (2015 Edition). The following are newly added methods: Testing Method for Overly Hard Particles in Toothpaste Testing Method for Diethylene Glycol and Ethylene Glycol in Toothpaste Testing Method for Soluble Fluoride and Free Fluoride in Toothpaste Testing Method for Total Fluoride in Toothpaste In Vitro Skin Sensitization ARE-Nrf2 Luciferase Test Method (LuSens) The following are revised methods, replacing the original methods in the Safety and Technical Standards for Cosmetics (2015 Edition): Testing Method for 43 Elements Including Lithium in Cosmetics Testing Method for 43 Elements Including Lithium in Toothpaste These methods will come into effect on March 1, 2026. Before their official implementation, cosmetic registrants and filers are encouraged to adopt these methods in relevant testing.