Why Your Skin Still Looks Dull Even After Using Brightening Products If your skin still looks dull even after using brightening products, the problem may not be that your skincare isn't strong enough. Dull-looking skin can be influenced by dehydration, stress, poor sleep, skin barrier condition, and how well your skin is recovering. Why Does Skin Still Look Dull? How your skin looks can also reflect what your body has been going through. Factors such as: Irregular sleep Ongoing stress Dehydration Busy daily routines Insufficient recovery can all influence how your skin looks and feels. When stress