Before purchasing I did my research and read reviews. went to a Mac store and tested on my face. a day later went beck and purchased it. this was the best $30 I have ever spent. it does what it says! controls shine, oiliness etc. Thought the day I only use this baby once and I am good. this product does not change your foundation color, and it keeps me looking matte for the day. I highly recommend this product for anyone who has an oily tzone. this is a must have. I cannot go without it and I will definitely repurchase again! FYI...I also recommend getting Mac oil free moisturizer! the power of both together equals... heaven!