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How to remove age spots
Use hydroquinone.
Hydroquinone is a very effective bleaching cream which can significantly reduce the appearance of age spots.
It is available in concentrations up to 2% over-the-counter, but higher concentrations will require a prescription from your doctor.
Be aware that hydroquinone has been banned in many european and asian countries, due to its potential carcinogenic properties. However, it is still widely available in the us.