Lemon juice and other strong citric acids have a very unique effect on freckles, one that is somewhat unlike many other anti-freckle remedies. Lemon juice actually has a bleaching property that can lighten the skin color and eliminate those pigment deposits in the skin caused by sun exposure. This is the same reason that lemon juice is often washed into the hair to lighten its color. The citric acid acts like a bleach on the skin as well, making it harder for those pesky freckles to stand out so much! Lemon juice can be applied 1-2 times per day, for as long as necessary, to lessen the appearance of freckles.