Buy yourself a Clarisonic and these replacement brushes. You'll be glad you did. I was skeptical of the whole system but was really impressed when an aesthitician used a Clarisonic on me during a facial. I bought a brush there and felt like it extended my facial. I still feel that way and now don't feel clean unless I'm using my Clarisonic.
Love these brushes and the clarisonic system!! My skin has become soo much clearer since using these and it doesn't make it dry or irritated either. I'd highly recommend these!