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There's a serious ethical problem with some sunscreen testing methods – and you're probably not aware of it

By Sarah Loughran, Director Radiation Research and Advice (ARPANSA), and Adjunct Associate Professor (UOW), University of Wollongong
Sylvia Urban, Professor in Chemistry, School of Science (Applied Chemistry & Environmental Science), RMIT University

Sunscreen is one of the most important ways to protect yourself from skin cancer – but to be reliable, it has to be tested on brave volunteers.

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