Harley Quinn asked on yesterday's sunscreen post: How mattifying is it?
I don't remember ever having problems with shininess when I used this, but today I decided to put some on at about 4 pm when I was already a little oily from just sitting around all day with my skin doing what it does. Not only did it not make my face look any greasier, it got rid of most of the shine that was there. That makes sense, since it has a silicone base, which is what a lot of mattifying primers are made of, though this is a thin liquid rather than a gel.
The silicone is also one of the things that makes it so wonderful to apply. I can just slide it over my whole face in a matter of seconds. It's slippery, and that makes putting on sunscreen so much less of a chore. Impatience is basically one of the top factors in deciding whether I like something or not. This is fucking quick and easy.
I swear I don't work for a sunscreen company or anything. I just really like this shit.
ETA: The mattifying effect didn't last more than a few hours on my oilyish skin without any powder or anything else on top of it. It went back to normal eventually. But that isn't its primary function, of course.