Clear, radiant skin is an essential sign of good health. However, when exposed to excess sunlight or stress, skin can lose its even texture, becoming blotchy and discolored. What Causes Uneven Skin Tone Your skin protects you from the sun using Melanin, a compound naturally produced by the skin to block UV Radiation. Melanin is an essential component of your skin that keeps you safe and healthy. However, if your skin is exposed to .