Well, yes, drinking water can reduce the wrinkles under your eyes. Generally speaking, you should drink between 8 and 10 glasses of water each day. And drinking water can do a good job to your eyes. For example, by drinking water, it makes your eyes and mouth moist. In that way, it can just relieve your wrinkles under your eyes. On the other hand, it washes dirt and dust right from your eyes. And in this way, it can decrease the risk you get the dry eyes. Also, water is not only good for your eyes, but also for your other parts of your body, such as the brain, the cells, and the organs. For example, Drinking water is like oiling your body's joints. Anyway, just drink more water.