It definitely lives up to its name to its claim to mattify skin. You can instantly feel the mattifying effect of the clay as you apply it to your face. My skin was left virtually oil free for the entire day which I was impressed with, the only bit of oil that I experienced at the end of the day was small oil beads on my nose. It reminds me of a sponge in the way it works as it absorbs any oil from surfacing but at the same time doesn’t give your skin a tight uncomfortable feel. I haven’t got very oily skin but I can imagine that for someone that does, this would work perfectly for them. My only complaint about this product is the smell, it has an earthly clay smell about it which doesn’t appeal to me, but once applied after a few minutes, you don’t notice the smell at all.