Oily skin has a delicate water/lipid balance, so choose the right day and night creams for your skin type. They're specially formulated to provide a purifying and balancing action that regulates sebum production. Most importantly, they absorb excess oil to create a matt look. During the day, opt for a hydrating cream or a light serum that will easily penetrate the skin, moisturising it but not adding excess oil or smothering the pores. In the evening, go for a slightly richer formula that will nourish and soften the skin, while allowing it to breathe.