Cucumber has been an important natural remedy for the treatment of age spots since time immemorial, primarily due to the unique chemical properties of this vegetable. When your skin is struck too often by ultraviolet radiation, small depositions of melanin are left behind, also known as age spots. These can become more apparent as the skin thins and stretches as we age. However, if you regularly apply cucumber juice to your skin, then it can help to bleach these spots, leaving your skin youthful and revived. You can apply cucumber juice once every few days for best long-term results.