Dry skin all over the body has more causes, and it is difficult to solve the problem by simply supplementing vitamins. If dry skin is caused by skin eczema and other diseases, supplemental vitamin C can play a certain role in assisting the treatment; when the body is due to the lack of vitamin A caused by abnormal keratinization of the skin caused by dry, itchy, can be supplemented by vitamin A to play a certain role in alleviating. If it is because with the growth of age, the body’s ability to retain water declines, coupled with the lack of moisture in the air, resulting in dry skin, you can rub and apply some moisturizing effect of skin care products, or you can supplement some vitamin E, can play a certain increase in skin elasticity of the role. There are many reasons for dry skin, simply supplementing vitamins is difficult to solve the problem, it is recommended to go to the hospital for further clarification, and then carry out the appropriate treatment.