A good rule of thumb to follow when looking for a moisturizer for oily skin is to shop for things that are noncomedogenic (not pore-clogging or likely to cause acne, in plain speak) and oil-free.
For this reason, Ofodile says it’s great on its own for combination skin. But she notes that, due to its oil-free nature, it can also be used with another moisturizer made to treat oily skin.