Orange is rich in two things – first of all Vitamin C and secondly, bleaching agents. These are absolutely natural bleaching agents. So they are not harmful for your skin. To use this in the simplest way, add two tablespoons of orange juice to a pinch of turmeric. Apply it on your face and neck before going to bed, or wash it off after 20 to 30 minutes daily. You can also apply it on your hands and legs.