I bought my Clarisonic from Walgreens.com last January for $89.00. Big savings as it retails for $149 elsewhere. With all of the hype among us makeup artists at ULTA, I felt I had to have one. I must say, it does absolutely NOTHING! There is no difference in my skin or skin tone than before I purchased it and used it twice a day. I don't think "moisturizers and serums penetrate deeper." If they did, wouldn't I see some change? (Besides I stopped using serums because I think they, too, are hyped up.) My skin is exactly the same. I fell for the hype. I use a mit my mother gave me, and it is like a washcloth shaped like a mit. ($1.00 at Dollar Tree.) I have had better results from it. It exfoliates and leaves my skin looking glowy. Please be careful and don't buy this device. It's the cosmetics companies forcing something else down our throats, enticing us to believe we need something.