I had been using these products for two weeks and my skin broke out really badly and was overly sensitive to the point when I had to use the most basic products in order to repair my damaged skin. I would not recommend this, especially to people who have sensitive skin. I even tried to use it one week ago and I immediately broke out, so I definitely know it's from these products. I have used acids and the similar ingredients as these products have, but I have never broken out from those.