Reef Friendly Sunscreen...or Not?

Protecting our reefs is of utmost importance, both for the sport of scuba as well as the health of the planet. The coral reefs are under increasing threat for both global warming and the tourists that want to appreciate them.  As it turns out Chemicals in many sunscreens trigger viral infections that result in coral bleaching. Chemical UV barriers are the culprit. But how can a little sunscreen cause so much damage?  Lets do the math. About 78 million tourists visit areas with coral reefs annually. About 25% of the sunscreen they slather on is left behind.  This amounts to about 4-6 thousand tons of sunscreen in the water!  That is alot of sunscreen and you can see that effect can be significant.

What can you do? Since there are no regulations to define what "reef friendly" sunscreen is, be cautious when you see a sunscreen labeled as such. Instead look for sunscreens with plant-based ingredients.  They break down faster.  Also, go with physical UV barriers vice chemical.  Wear that rash guard, and/or use titanium dioxide or zinc oxide. Many rash guards offer great UV protection and leave nothing behind in the water. Also chemical UV barriers are believed to mess with your hormones in many cases. Using titanium dioxide or zinc oxide are better for you in that regard.

So be a friend to the reefs and look for sunscreens that meet these guidelines.  Save the reefs for posterity and help save the planet for your kids.