I walked into Olive Young, often dubbed the “Sephora of Korea,” and asked which products they’d recommend for skin whitening. After visiting multiple branches across Seoul from Gangnam to Myeongdong, ...

This article is a part of CNN Underscored’s Guide to Age-Defying Beauty, a weeklong focus on the essential products, tips and tricks to enhance your glow at any age. We’ll be featuring editor-tested ...