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Coral bleaching and sun protection


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What is coral bleaching?

Coral bleaching is a process whereby corals lose their distinctive color because the symbiotic micro-algae living within them die due to changes in ocean water. Because the algae provide many corals with 90% of their energy through photosynthesis, bleaching ultimately leads to the death of some coral species. The phenomenon occurs primarily due to temperature changes, disease-causing bacteria, pollution and ocean acidification due to the emission of greenhouse gases into the atmosphere.

Do La Roche-Posay major sun filters cause coral bleaching?

Both of La Roche-Posay’s primary filters, Mexoryl SX and Mexoryl XL, have been extensively tested with regard to marine environments. In ecotoxicology testing, 5 weeks’ exposure to these filters at concentrations higher than those found in sea water neither induced coral bleaching nor had any negative effect on the coral’s symbiotic micro-algae.

Our 3 steps approach to protect yourself against cancer

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