First I\’d like to mention that I have an Oily T Zone and everywhere else is normal. I decided to test this product out two different ways. The first day I wore this foundation with Smashbox primer underneath and used Urban Decay All Nighter Spray. After 6 hours my face started to get extremely oily in the T zone area. The second time, I used my setting spray after primer and also sprayed my beauty blender with setting spray to apply the foundation. Sprayed the all nighter spray one last time! My skin did not require blotting or any touch up for 10 hours!! I highly recommend trying setting spray before and after foundation if you have combination / oily skin tone.