Thailand has banned sunscreens containing chemicals that damage coral from its marine national parks, according to a BBC report.
The Thai Department of Conservation said four ingredients commonly found in sun creams (oxybenzone, octinoxate, 4-methylbenzylidene camphor and butylparaben) were shown to destroy coral larvae, obstruct coral reproduction and cause reef bleaching.
Those violating the ban can be fined up to 100,000 baht ($3,000), though officials have not said how they plan to enforce the new rule.
Similar bans have been introduced by the Pacific island of Palau and the US state of Hawaii and other territories dependent on marine tourism are expected to follow suit in future.
Not so long ago, sunscreen was mainly a drug store staple marketed only in the summer months. Now, SPF products are a beauty aisle mainstay.