Wow I just ran across your site the other day. This is a great place to find a wealth of info and get questions answered without someone trying to sell you something. Thanks for the site and now my question: Is there a difference between the inexpensive 10% benzoyl peroxide in Clearasil and the expensive 10% benzoyl peroxide in Jan Marini Acne Medication? The Jan Marini web site says that her product is "finer milled". Is there such a thing and does it make a difference? They have the same active ingredient and the same amount of it. Thanks for your time, LoriAnn