Method – 2: (Baking Soda and Lemon Juice for Dark Spots) Both lemon and baking soda have natural bleaching and skin lightening property that fades away the spots or scars on the skin and shines it with an even skin tone.
How to Naturally Lighten Sun Spots. Every night saturate a cotton ball with about 1/4 tsp of apple cider vinegar and 1/4 tsp of lemon juice. Starting at forehead and working down apply evenly all over face. If you have sensitive skin, or if it feels too strong dilute with water. For best results do not rinse and leave on overnight.