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.
Brown spots usually appear on people who are fifty years old and above and people who have white complexion. 12 natural ways to remove brown spots on face
Simple, 2-Ingredient Trick to Remove Brown Spots from Your Skin