Detailed answer

Eye creams are specifically designed to target the delicate skin around the eyes, addressing concerns such as dark circles, puffiness, and fine lines. The skin on the knees is thicker and more resilient compared to the eye area, requiring different formulations and ingredients for effective results. While some ingredients found in eye creams may have general benefits for the skin, it is advisable to use products specifically formulated for the body or targeted for the knees to address skin smoothness in that area.