I've used the Olay Regenerist Serum for about 3 weeks now and I like it a lot. I feel a difference in my skin, a softness, and the pores seem finer...though of course it could be wishful thinking,partly,too!
I've used several of the Roc products...aboout a year ago. Can't remember their specific names but they were for around the eyes...I liked them a lot(were great under concealer, too)but then got introduced to another skin product line, Dermalogica, and just didn't repurchase. But if I saw Roc in the store today, I would definitely buy it: my friend, who is a nurse at a dermatologist's, says he prescribes AND sells Roc products at his office--highly recommends them.