I've had bouts of adult acne for what seems like the longest and stressing about it did not help. Before this product, I was trying out Rodial, Michael Todd, Estee Lauder..and some others. Nothing seemed to help with my scarring OR breakouts for that matter. I finally switched up my birth control and decided not to stress about the breakouts and focus on brightening the existing scars, some were bad! So I decided to go back to SK-II as I used some products in 2012 after my second child (it helped!) Along with the Essence I used this product and now after 2 months along with BC change and other various skin care products my skin is loving me again!! I say this is a great investment for glowing skin. I can tell that it has helped my skin transform! with anything you have to be patient! I was not!! But if you decide to spend hard earned $$ on something you better wait for it to do something. And now after 3 months of BC switch..everything is coming along. I was using it day and night for the first month until I got something else I love to use during the day. So I can stretch this baby out!!