Finding the best SPF for face is key to blocking the harmful effects of the sun’s UVA and UVB rays, which wreak havoc on the health of our skin and its cells.
Another factor to consider in your sunscreen selection is its effect on the environment. While the science around exactly how damaging sunscreen is to our oceans is inconclusive, what ingredients should we be looking out for to make the best choice possible? We speak to marine biologist Professor Cinzia Corinaldesi from the Università Politecnica delle Marche and Dr Anjali Mahto, consultant dermatologist at Skin55, for a five-step guide.
“Certain organic filters have been identified in water sources worldwide and there seems to be a suggestion that they are not easily removed by common wastewater techniques,” adds Dr Mahto. “Many of the filters have also been found in various species of fish worldwide — the impact of this is uncertain on the food chain.”Mineral sunscreens, which typically contain zinc oxide and titanium dioxide, are thought to be less harmful to coral reefs in comparison to their chemical counterparts.
It’s worth remembering, though, that some research suggests zinc oxide can also pose a danger to marine life. “Our studies indicate that zinc oxide nanoparticles are very harmful to marine organisms,” says Professor Corinaldesi, but adds that titanium dioxide with surface coatings — as found inLook for non-nanoparticles
Particle size matters, too. While nanoparticles can be absorbed by coral reefs, research suggests that larger non-nanoparticles are better for the environment.
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