This Serum is wonderfull, I got it as a gwp from Neiman Marcus about two months ago, and it sat in my drawer until las week, when I notice some dry flaking patches that wouldn't go away, not even with my always reliable Creme de la Mer, I even thought about making an appointment with my dermatologist, but I decided to give this Diamond Drops a try first, and believe I am impressed the irritaring patches had dissapeared by the next morning,and it also left the rest of my skin looking so youthful that I still can't believe my eyes,this is a serum that you apply on top of your regular moisturizer, has a soft texture and according to the company reinforces the skin's natural defense system . I highly recommend this serum, the price for a 1.7oz bottle is $300 dollars!!!!! but believe that is well worth it, if you have the money of course.