Used the product every other day, after hot bath or after leave a wet towel in hot water deposited on face some minutes, it is necessary to open the pores. You not see the sebum out dramatically, but after about 6 uses my skin was lisinha and blackheads 80% less apparent (blackheads that I had the nose and chin since 16-have 32). U can not stop long um point, but not pass fast too. I step slowly so that it takes 2 seconds in each point. The Oval tip is ideal for corners nose, and the mouth is good to take oiliness general. Do not expect see the blackhead out as the videos in internet, but use regularly in skincare routine and see results. Wash the face and step a moisturizing after use.