Wrinkles are generated primarily due to skin aging (through natural aging and light aging). Wrinkles are a sign and symptom of skin aging. For children and teenagers, the skin is more tender and soft, so generally these age groups won’t have wrinkles. As people age, , especially after middle age, the skin becomes rough and will lack moisture and elasticity. The skin on the face and the deep tissues and bones under the skin gradually atrophy, prolapse and relax, thus producing wrinkles, much to the dismay of fashion lovers. Generally speaking, if maintenance is not conducted properly, women’s skin start aging after 28 years and wrinkles gradually increase. Factors which may produce wrinkles include internal factors such as hormone, race, genetic factors, oxidative stress and systemic diseases and external factors such as temperature, air pollution, smoking and alcohol.