Freckles and brown age spots are the result of sun damage to the skin. You should always wear at least SPF 15 sunscreen when spending the day outside, even in the winter. Pale people, especially, should heed this advice as they are more prone to skin damage. However, for many people it's too late. The damage has already been done, and annoying freckles have formed over your face and shoulders, or brown spots are beginning to show up as you age. No worries, though; you can fade these spots over time with lemon juice. Lemons are natural and safe, with the citric acid acting as a gentle exfoliant.
Roll a lemon on a table or counter to release the juices. Cut the lemon in half with a sharp knife and squeeze the juice into a bowl. If you have just a few spots you want to treat, a single large lemon will be enough. If you have a large area of freckles or spots, use two or three lemons.
Pour the juice through a strainer or cheesecloth to remove seeds and pulp. This makes it easier to mix in the sugar. Add enough sugar to make a sticky paste you can scoop up with your fingers. Use one tablespoon of sugar per lemon. Stir gently, but don't dissolve all of the sugar.
Scoop up some of the mixture with the corner of a washcloth. Gently rub the mixture over your brown spots so that the sugar lightly rasps at your skin. The sugar will help peel away dead skin and help the lemon work.
Rinse away any sugar left on your skin and use a clean corner of the washcloth to dab a little unmixed lemon juice on your brown spots. Leave it there overnight. Use the scrub and unmixed lemon juice each night until your spots have faded completely. It may take up to eight weeks to see results. Use sunscreen outdoors to prevent new spots from forming.