Even oily skin needs hydration, as far as I know, excess sebum can be caused by skin dehydration, the skin tries to compensate by producing more oil. I have a great baking soda cleanser, it's by a Korean brand, Etude House. I bought it through ebay. It feels really cleansing, if that makes sense, :lol: my skin looks matte and feels a bit dry after using it, so I usually apply some hydrating lotion or jojoba oil (which is right now my favorite) afterwards. I should be more constant when doing my skin care routine, when I've been doing it for some days in a row, my skin looks and feels great, and then I get lazy and it goes back to being dry in some parts and oily in others.