Dark and dull skin can be caused by overexposure to the sun, environmental pollution, a medical condition, dry skin, stress, poor lifestyle choices, and prolonged use of chemical-based cosmetic products. Many people work hard to achieve fair and flawless skin. The market is flooded with skin-lightening creams and lotions. But such products have harmful chemicals that can ultimately damage your skin. Oftentimes the products are expensive, too. You can save yourself some time and money by using natural remedies that will effectively brighten and lighten your skin complexion.