After using the Skinceuticals Cell Cycle Catalyst, I can honestly say that the effects are amazing. The recipe is ideal for my regimen because it is lightweight and absorbs rapidly. Since using it, I've found that my skin feels more balanced and smoother. My complexion looks more even-toned overall, and the fine lines that used to annoy me have become less evident. I like that the dropper design is useful and makes sure I don't waste any product. Overall, my skin has really improved with this lotion, and I'm glad I found something that works so well.