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Sunscreen testing is on the path to becoming more ethical, cost efficient, reliable (in terms of SPF measurement) and faster thanks to a recent move by the International Organization for Standardization (ISO), a non-governmental organization that develops and publishes international standards. The group has recommended two new test standards for final approval. Here, two experts behind the standards and ISO's approval, Marc Pissavini, Ph.D., sun research lab director, Coty, and Sébastien Miksa, general manager of Weneos (formerly Helioscreen), share insights about the standards and what they mean for sun protection.