First, you need to remove the oil on your skin, so cleanse your skin with a mild face wash. Next, you should apply a toner. Look for toners that have tea tree, rose, or green tea extracts, as these work best for oily skin. The last step is moisturization. Oftentimes people with oily skin think that moisturization is not that important for oily skin. But you lose some hydration during cleansing and toning your skin. So, retain your skin moisture using a gel-based moisturizer as it is the best kind of moisturizer for oily skin.