Like “K-Pop” or “K-Drama,” K-Beauty is a whole league of its own. More often than not, Korean cosmetic products are regarded as effective, with brands like Laneige, innisfree, Dr. Jart+, and Beauty of Joseon being popular among non-Koreans, too. But one brand, DPPR, is now being slammed online for promoting a “nonsense” skincare product for achieving…

