I have recently noticed that during the days that I stay indoors and never set foot outside, I do not put anything on my facial skin. On those days, my skin does not become oily. On the days where I have to go outside, I put on a moisturizer with SPF and around 4-5 hours later, my skin becomes oily. When you do not put anything on your face compared to putting things on your face, do you notice the difference?
P.S. I only wash my face with water everyday.