Jillian, a reviewer who claims to have tried every eye cream on the market, highly recommends the Adv Retinol+Ferulic Correction Eye Serum by Dr. Dennis Gross. According to her, this is the only eye cream that actually works. She mentions that she has been using this eye serum for a while now and it has been effective in reducing her dark circles. Even though she is unsure about how it works, she can definitely see the results. Jillian noticed a significant difference in her under-eye area after just four days of using the product. She emphasizes that she has tried numerous eye creams in the past, but none have been as effective as this one. Overall, Jillian's experience with the Adv Retinol+Ferulic Correction Eye Serum has been positive, and she continues to repurchase it for its noticeable results.