COSMAX said on the 11th that it has adopted ISO 23675, a next-generation in vitro testing method for sun protection factor (SPF), for the first time in Korea's cosmetics industry.
ISO 23675 is an in vitro method established in Dec. 2024 to measure the SPF index of sun care products. In a laboratory setting, it measures the absorption and transmission characteristics of ultraviolet light using PMMA (polymethyl methacrylate) plates, a specialized piece of equipment.
Under the existing in vivo method, more than 10 test subjects were required, and it typically took four to five weeks to confirm results. In contrast, ISO 23675 has a one-day testing period, allowing developers to shorten product development timelines.
In addition, by using a robotic arm so the formulation is applied uniformly, the method minimizes evaluator-related errors and maintains consistency and standardization of the test.
COSMAX plans to expand support for client companies seeking to enter Europe by introducing the new method. The European market has officially adopted ISO 23675 as the standard for SPF labeling.