I've been using these products for the last 4 years, and within the first month of starting the full product regimen, I had a noticeable improvement in acne scarring on my chin. My daughter came home from college at Christmas break and was like "whoa, your face looks really good". I microroll and then use the EGF, followed by the PSC, finished with the HA Hydrating Serum. I use the peel infrequently, maybe once every two weeks, but I'm adding it back into the rotation more frequently. I have the old version of the eye serum; I know they have re-launched this, the old version is just "eh". The best product, hands down, is the CBD elixir, it is great when my skin is stressed or inflamed, it calms everything down. I've only given my rating 4 stars because the calming CBD elixir and the PSC are no longer available on the website. I've emailed a few times to ask and was told that reformulation, something better will be launched, blah blah blah. The difference when I buckle down and use the whole line consistently is so noticeable, and it's such a bummer that the products are not supported.