Tired of looking at the aggravating little brown spots on your hands? Try applying some buttermilk or some lemon juice to get rid of age spots. The lactic acid in buttermilk and the citric acid in the lemons helps to exfoliate the skin on your hands — and it helps to remove those pesky brown spots without drying out your skin. How do you do it? Simply use a cotton ball to apply the buttermilk or the fresh squeezed lemons direct on the spots. Leave it on for a few minutes once or twice daily.