A friend recommended this product to me, saying that moisturiser wasn't going to be enough for my daily skincare regimen- the Laneige Water Sleeping Mask would boost your skin moisture barrier. I have combination skin so it's always tricky looking for a product that won't worsen my skin's oiliness. Safe to say I wish I had bought this sooner! When paired with only the Cream Skin Refiner you can have the shortest skincare regimen daily and save time- and I wake up with refreshed skin that doesn't feel too oily as it usually does before. A little goes a long way, will definitely last you a long time, and it's worth the bang for your buck.