Dull skin is often a cause of of stress constricting the blood circulation causing the skin to look fatigued and loses charm. Wrinkles, eye bags and circles occur due to lack of sleep, stress, over exposure to the sun or no sun exposure at all. Dehydration from excessive consumption of alcohol, cigarettes, tea and coffee also dull down the skin. Reduction of dull skin can be done by paying more attention to the diet. Intake of regular vitamins in the form of fruits like apples, pomegranates, oranges, green leafy vegetables like spinach and salads, carrots help in skin repair.