My skin produce excess sebum. I am 23 years old still I have excess oily skin problem. I have to wash face 4 times a day in every 3 hours. And within a week I get new whites on whole face especially on forehead, side face, chin. There are many fixed sites where I get very big white heads nodules. I keep extracting them in every 7 days. And its again pop up. No acne problem or whiteheads turn to blackheads if left for more than 20 days. I have lot of whitehead on my face I can easily feel them with fingers. I have this problem from teenage. But I think by now it must have controlled. So only way it can be controlled by controlling my sebum production. Do Vitamin A helps for that?