This is one of my favorite serums that I have ever used, and that is saying something based on my past purchases. I am admittedly a skincare snob so I didn't have high expectations for this line of moderately priced products. For years I have used multi-step high end skincare that contain a lot of actives. Yes, I was overall happy with the results but tired of the very high prices. I turned 55 last year and I finally went to a dermatologist for the first time ever, and asked to try out a prescription retinol for some fine lines. Because of the prescription retinol, I had to stop using the other night time active ingredients I was using. I decided to use this as an opportunity to simplify my skincare regiment and wanted to find effective products without all of the irritating actives. Because of the moderate price point, I didn't have high expectations but I was wrong. Very Happy with this line of products.