I bought the snail mask and the hyaluronic acid mask. I have a combination skintype that is very dehydrated, has dry patches, acne + acne scarring and can be sensitive. These masks are full of essence which I love. I left these masks on for about 25 minutes. After removing my skin felt soooo hydrated and my dry patches were gone. Because these masks are so full of essence they can leave the skin a little sticky afterwards, but I don't mind that. When I finished my routine the stickiness was gone. I also love using these in the morning because I noticed that after using these masks my makeup applied smoother. Will 100% repurchase these masks!