If you work long days and are tired of having to reach for your blotting powder every two hours, then Becca Cosmetics Ever Matte Poreless Priming Perfector (£28) is worth a try. The oil- and silicone-free formula promises to mattify skin and control oil production for up to 12 hours.
Unlike many of the other primers on this list, this formula doesn't contain silicone and has more of a fluid-like texture — almost like a lightweight face lotion. And while it doesn't do as good of a job of concealing pores as the formulas that have silicone, it will definitely keep your skin from looking greasy during the day, even if you have very oily skin. One tip: avoid applying this onto any dry patches of skin as it will make those areas look even drier under makeup.