The definition of aging via the online dictionary is the process of becoming older or aged. Aging is something that most people like to avoid, and aging skin even more so. Aging skin is most notable by it's loss of firmness, dryness, sagging, wrinkles and uneven skin tone. For mature aging skin, it's best to find quality ingredients and products that are designed to fight the signs of aging. There are many ways to address aging skin, with the most important being to prevent more aging by using sunscreen and moisturizer, and then correcting with a serum or specially formulated cream to treat and correct the damage aging has caused on the skin.