Masks have come a long way since the cucumber peel-off ones popular at ’90s sleepovers. South Korea, birthplace of the beauty-game-changing sheet mask, continues to be an innovator and influencer. Rubber masks, like the antioxidant- and fatty-acid-rich Lindsay Cool (Tea-Tree) Modeling Rubber Mask ($8.30), go on like a paste and then solidify. “They are particularly well loved in Korean spas for the intense hydration and nourishment they deliver,” says Alicia Yoon, founder of K-beauty (Korean skincare) online store Peach & Lily, adding that the bandage-like layer the mask forms helps push ingredients into the skin. The hyaluronic-acid-heavy Mizon Intensive Skin Barrier Eye Gel Mask ($6.85) looks like a disguise a superhero would wear—to save the world from dehydration. Stick-on Patchology FlashPatch Lip Gels ($60) promise to soften and plump fine lines—and they’re fun to play with! TonyMoly Red Cheeks Girl’s Patch ($4.26) contains cucumber extract to soothe flushed cheeks, ideal if your skin is prone to redness. If your skin is on the oily side, try Benefit POREfessional Instant Wipeout Mask ($42). It contains mushroom extract to clarify pores; after 10 minutes, flip the mask over to exfoliate. Sarah Chapman Spot Stickers ($40 for 16) contain salicylic acid to treat blemishes and grape-seed and soy oils to reduce scarring. No time? Blithe Patting Splash Mask ($67) will give you spa-day levels of radiance in 30 seconds thanks to natural exfoliator lactic acid. For details, see Shopping Guide.