Korea’s Cosmetics Act defines functional cosmetics as a closed list of five effects, and a product sold for any of them must first undergo an examination by the Minister of Food and Drug Safety, or have a report submitted to the Minister on its safety and effectiveness, before it may be sold.
The five effects are close to the default vocabulary of Western skincare packaging, so a brand can move a product into a pre-market approval regime by writing one line of front-of-pack copy, without changing the formula or intending to make a regulated claim.