I love the way these masks feel on the skin! I bought the whitening type and they're full of ampoule goodness! The masks themselves are made of thin, super durable fabric that doesn't tear no matter how hard you stretch it and they stick so well to every contour of your face without any air bubbles or fabric wrinkles. I didn't notice a huge whitening effect, but I do notice that every time I do one of these sheet masks, my skin is so bright, supple and soothed, and the effects carry on to the next morning. Definitely stocking up on these!