On April 10, 2024, China National Institutes for Food and Drug Control (NIFDC) initiated a public consultation on four technical guidelines concerning cosmetics safety assessment.1 These documents focus on stability testing, preservative challenge testing, packaging compatibility testing, and skin sensitization testing. Following the consultation period, on July 8, 2024, NIFDC released the finalized guidelines along with relevant Q&As, offering more comprehensive guidance on the safety assessment of cosmetics and cosmetic ingredients.2-7