Coral-friendly Sunblock

Did you know that there are areas in which you are not allowed to use regular sunblock? In Mexico for example, there are several marine parks (Cozumel, Chankanaab, Xcaret, Xel Ha, and Garrafon) where you can't swim while wearing regular sunblock, so you'll need an alternative. 

So why are you not allowed to wear normal sunblock? Sunblock, just like other body products, contains a lot of chemicals. Some of these chemicals such as oxybenzone (sometimes listed as benzofenon-3 or bp-3) (which can also have a bad impact on human health www.ewg.org/sunscreen/report/the-trouble-with-sunscreen-chemicals). Because of its toxicity to the algae living in symbiosis with the corals, oxybenzone disrupts the normal cycle of corals and can therefore cause changes in their reproduction and growth. A laboratory study showed that even in minimal concentrations of sunblock, already resulted in viral infections which could lead to coral bleaching (Pubmed: Sunscreens Cause Coral Bleaching). And not only wearing the sunblock in the water results in pollution, also washing off sunblock in the shower and using sunblock spray on the beach can be very detrimental. 

Many coral reefs are currently at risk of bleaching, one of the most well-known being the Great Barrier reef. Since coral reefs provide one of the major sources of biodiversity in the ocean, it is very important to keep them intact. Therefore there are some options to reduce your impact and to be able to swim anywhere. The best is, of course, to not use any product. However, it is important to protect yourself against the sun. Here you can see a list of harmful ingredients that can be in sunblock. So you can look for one that doesn't contain these ingredients. It is hard to find coral friendly sunblock on the internet, but one sunblock I know of is Sovee. Abroad you can find many sunblocks stating they are eco-friendly, however, I recommend to not always trust these labels but really check the ingredients. And in places where you can't swim without coral-friendly sunblock you can be sure that you can buy it somewhere. 

Well, if you know of any coral-friendly sunblocks, please let me know! You can leave the links below :) 

Cheers, 
Hannah 

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Coral reef

... It is indeed an option to wear no sun block at all, and instead a shirt with sleeves. Thanks for sharing alternatives, Hannah! :) Very important to raise awareness. See also: https://www.coralgardening.org/endangered/. I met a person a while ago, who told me about her sisters project, aiming at protecting and restoring coral reef in Thailand. Inspiring project! The shared link is from their project... :)

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