Dark circles under the lids caused by shadows can be improved with lower eyelid surgery, or potentially volume rejuvenation with fat grafting or filler. If the skin itself is pigmented, then skin care on top of surgery or volume replacement is needed to optimize results. A cream to help with pigmentation is typically added to the regimen post operatively. An in-person consultation is always best to discuss which modalities will help you to reach your goals. Every patient and every case are a little different.