I was surprised with this product and that it did not work for me. I really like Clinique products and have had positive experiences with all of the products I have tried. I bought this to use when I can fell a zit coming and was hoping it would prevent it from coming or help the healing time. I could not tell a difference at all when using this product. It actually made my face burn and dry out terribly. It made the zit looks worse since it would start peeling from being dry. I only used this a few times and then took it back to the store, it was not what I was looking for and I could not see any results. Effectiveness This product did not help to clear up any acne that I had, but made my face red and irritated. Ease of Application It is easy to apply as it comes in a gel form and can easily be placed on problem areas. Side Effects My face burned and became irritated. It made my face very dry and begin to peel. I have never had this bad of side effects from any facial products. My face did not agree with this formula.