My only wrinkles so far are my laugh lines.  However, I wanted a sleeping mask to help prevent.  What I can say is that a little goes a long way so A+ for that, Mizon.  It is also VERY hydrating.  I wake up and can still feel it on my skin.  Most sleep masks or night products are long gone when I get up, usually.  This one is still there.  It's not greasy or oily even if it has a bit of an oily feel.  It has not stained my pillows either which is a plus.  I am looking forward to seeing what the long-term effects will be (here's to hoping I can diminish the laugh lines!).