I use this with their oil blocking products. As far as keeping my face from being oily, it's good but it's too good. I have to only use this on my tzone, and use my regular moisturizer on the rest of my face. It does work.
Generally, I love Black Opal products and they have done my skin worlds of good, but this one is just ok....it's not a bad moisturizer, but it does tend to be a little drying to my skin.
This is a good light weight moisturizer for the summer. Rubs in quickly and has almost no smell. If you need something light this is the product for you.