Oil provides moisture and a plump look to the skin. With dry skin, you may appear to have more wrinkles. Oily skin tends to be thicker where there are more oil glands, which means forehead lines may be less apparent. However, oily skin may end up with deeper lines in the lower half of the face with more loss of tone.
In some people, though, the sebaceous glands can produce too much oil. This creates oily skin. You know you have oily skin if your skin constantly looks shiny, and you go through several blotting sheets a day. Breakouts are also more likely because the sebum mixes with dead skin cells and gets stuck in your pores