I am a big fan of the PCA line, it has been the only thing to work on my adult acne (mainly the A&c serum, BPO cleanser and nutrient toner). However, I have been using this product for over a month and I do not see any change on the lines under my eyes. I am so used to having fast results with their products that I expected to see some kind of change after the first month. What I can say about this product is that as small as it is I still have A LOT left,PCA products can be expensive but they do last a long time. I will write another review on my third or fourth month.