Oil control starts with good skin care. Never skip your moisturizer! While you may think that less is more is the answer, your skin actually overcompensates and produces more moisture (who knew?). This moisturizer from Murad ($40) fights clogged pores, regulates oil production, and mattifies shiny skin until you're left with a smooth finish.
Murad Oil-Control Mattifier SPF 15 l PA++