I was using this for over a year with my Clarisonic Mia. My face had cleared up tremendously. I loved the cleanser. It was gentle, didn't dry me out & made my skin soft & smooth. A small amount did the job. I remove my makeup first but on lazy days I could get away with just this because it removes makeup very well. Last month I went to buy another bottle as the big size one I had finally ran out after over a year & as soon as I used it I felt like something was different. I had heard Philosophy had the formula to the Microdelivery & I'm wondering if they changed it for this too? It smelled stronger than usual & completely dried & tightened my face. I also ended up with some whiteheads. It wasn't the Purity that I knew & loved.