This product worked well overall. It glides on my skin, leaving a smooth finish. It also had that feeling that’s typical of mattifying primers (hard to explain), so I anticipated it would do the job. My skin was not oily, which it typically does get oily, especially with foundation. However, it’s hard to tell how well the product works for mattifying oil since my skin tends to be drier during the winter. My skin doesn’t get very oily under makeup during the winter. I think this product likely helps because it had that mattifying feel when I initially put it on.