The Caffeinated Eye Serum - Peppermint by CocoRoo Natural Skin Care is a must-try product, according to Jackie's video review. With its refreshing peppermint scent and caffeine-infused formula, this serum promises to tighten and brighten the eyes. Jackie found the application process easy, thanks to the roll-on design, and noted that the serum felt fresh on her eyes. After just 10 minutes of use, she noticed a visible brightening effect, even after an early morning workout. Jackie highly recommends this serum and plans to continue using it to see further results. Overall, the Caffeinated Eye Serum - Peppermint by CocoRoo Natural Skin Care seems to be a promising product for those looking to rejuvenate their eyes.