K-Beauty Glossary
What is Sheet Mask?
마스크팩
Serum-soaked face mask
Sheet masks are single-use face-shaped masks soaked in serum or essence. They're a K-beauty staple used 1-3 times per week for an intensive hydration and treatment boost. The mask material (cotton, hydrogel, bio-cellulose) creates an occlusive seal that helps ingredients penetrate better. Korean sheet mask culture is so widespread that it's common to mask on planes, at home, and even in offices.