Hawaii’s sunscreen ban


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Coral reefs provide food and shelter to numerous marine animals. (flickr/USFWS)

Eden DeWald | July 11th, 2018

Hawaii is making a move to protect its coral reefs. A bill banning the distribution or sale of synthetic sunscreens in Hawaii was signed by Governor David Ige earlier this month. The ban will go into affect in January of 2021, and will prevent the sale of sunscreens that contain oxybenzone and octinoxate.

There are two main types of sunscreen found in any drugstore—chemical and physical. Physical sunscreen, or mineral sunscreen, often has active ingredients such as titanium and zinc oxide, which reflect or scatter UV rays by forming a protective layer on the skin. Synthetic sunscreens, which often contain oxybenzone and octinoxate, soak into the skin. They protect the wearer by changing the electromagnetic affect of UV rays. Physical sunscreens are not at all affected by the ban and will still be available for retail sale and distribution.

According to a 2015 study, oxybenzone has been found to cause the bleaching of coral reefs, as well as endocrine damage. There have been fewer studies done concerning octinoxate, but similar damaging effects have been associated with this chemical. Approximately 14,000 gallons are estimated to end up in the waters off the coast of Hawaii each year, consequently banning sunscreens with oxybenzone and octinoxate has the potential to remove thousands gallons of coral reef damaging chemicals from the environment each year.

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