South Korea’s serious—if not fanatical—dedication to skincare makes any beauty treatment that comes out of the country full of porcelain-skinned faces easy to trust (hello, BB cream!), and sheet masks are no exception.Masks come individually wrapped and, with no need to rinse your face after use (just massage any extra product into your face, hands, and décolletage), they are a girl-on-the-go’s best friend.We love sheet masks for a quick fix when we’re looking especially lifeless after a long flight, or for when we downed too many glasses of Pinot the night before our sister’s wedding. And now, we’re sharing our top five:Best for Brightening: SK-IIWhy We Love It: Each Brightening Source Derm Revival Mask contains a full bottle’s worth of the company’s famous Brightening Derm Specialist serum, guaranteeing a more balanced, brighter complexion.Best for Moisturizing: La MerWhy We Love It: Creamy, luxurious, and fortified with the legendary La Mer Miracle Broth, the La Mer Hydrating Facial mask provided us an hour-long facial’s worth of moisture in 10 minutes.Best for Firming: Dr. JartWhy We Love It: The All That Lift & Firm mask from the Dr. Jart Prescriptment Mask Collection features two pieces: one for the top half of the face and one for the lower half and jawline. Each stretches to fit individual contours and better infuse skin with its caffeine-based formula that firms skin and relieves swelling.Best for Evening Skin Tone: Perfective CeuticalsWhy We Love It: Hydrolyzed Collagen and a blend of seven extracts, including licorice and mulberry root, in the Perfective Ceuticals Divine Brightening Mask work to inhibit the production of melanin and reduce the appearance of discoloration, leaving skin even and rejuvenated.Best for Sensitive Skin: Dolce & GabbanaWhy We Love It: The ultra-lush Dolce & Gabbana Aurealux mask is saturated with D&G’s Gold Flavo-Silk Tricomplex, a blend of gold silk sericin (from silk worms), olive oil, and vitamin B3. It treated our most sensitive skin without any future irritation.