The hands give away your age more than any other part on your body. Your hands are exposed to the elements on a daily basis. The most damaging is the sun. That is why it is important to apply sunscreen when in the sun for long periods of time.
There are ways to minimize damage and protect you hands in order to have a more youthful appearance. It is important to moisturizing your hands frequently. In the beauty industry, I tend to moisturize more often since my hands are constantly being exposed to irritants. Protect your hands when cleaning and washing dishes. I wear pink rubber gloves with zebra print trim when cleaning and washing dishes.
My favorite moisturizer is Aveda Hand Relief. This hand cream last for three hand washes and leaves your hands noticeably softer and smoother.