UV filters are widely used for skin protection against cancer. Their impact on corals was poorly investigated but it was shown that octocrylene and several benzophenone filters exert direct detrimental effects on corals, and that other ingredients in sunscreens and cosmetics exacerbate their toxicity. The SPOC project will search for stress biomarkers in corals to introduce a practical reliable tool to quantify coral response to pollutants and evaluate all UV filters allowed in cosmetic products in Europe, while considering the public health importance of sunscreens. Eventually, we will also investigate on the relationship between site contamination and the observed decrease of coral bleaching temperature threshold, and we will qualify wild sites water quality for coral well-being through transplantation experiments and biomarker-based quantification of coral stress.