I have used this product for several years, and it is the best of the best in anti-aging: for one, it is remarkable in its delivery system. I apply on a clean, damp face and it sinks in immediately. Within moments, I can actually feel this magical firming; it is not too intense to pull and then suddenly release, creating more lines; however, the sense of lifting is most definitely noticeable and it has given my skin a mini face lift. I don't think I could be without this wonderful product. It contains all of the necessary peptides used in treatment,. except, perhaps, copper, but this amazing serum works. It is also fragrance free and does well when topped with the complementary HA Serum. Thanks Ask Derm~