As the islands of Hawaii are surrounded by marine life on all sides, the people of Hawaii want to preserve their oceans as much as they can. They understand just how delicate the coral reefs and the marine life around them are, which is why they want to protect them at all costs. To do this, they have banned many of the generic sunscreens you can buy from the drug store - especially those that contain oxybenzone and octinoxate.
These chemicals are extremely damaging to the coral, so they brought a new law to life in 2021 that banned these chemical sunscreens. Instead, they encourage the use of natural, eco-friendly sunscreen.