Apple cider vinegar has alpha-hydroxy acid in it, a popular ingredient in a lot of skin-care products. This property helps the skin renew itself and stay firm and fresh. To get rid of age spots, apply the diluted vinegar-and-water mixture with a cotton pad and let it soak into your face. When first applying, leave it on for a minute or two so you can test how your skin reacts to it. If your skin reacts well, you can leave it on for longer.