What if the weather is too hot and the skin is dry?

How to do dry skin The key to smooth, plump and shiny skin lies in the water content in the skin. For example, why the baby's skin is so delicate, shiny and elastic is because of its high water content. As the saying goes, her skin is tender and tender. Why old people's skin is dry, rough, shriveled, peeling and dull is because the skin has less water content. In cold, windy and dry seasons, it is a moisturizer for external use. In the most important season of skin conditioning, there are several ways to moisturize the skin: 1. The oiling method to prevent the evaporation of skin moisture is to apply vaseline to the skin, which can seal the skin and prevent the evaporation of water in the skin. This principle is used in Ponzi Vaseline skin cream market, but its disadvantage is that it is too greasy and easy to get dirty. 2. Moisture absorption and moisturizing method They use glycerol, sorbitol, propylene glycol and polyethylene glycol to absorb external moisture. They are water-absorbent and suck moisture from the atmosphere into the skin. For example, glycerin is water-absorbent and has a moisturizing effect, but it can't be pure. On the contrary, pure glycerin will absorb moisture in the skin. To make the ratio of 1: 3, add 10%~ 15% glycerol to the total prescription, which is oily and absorbent. 3. Hydration and moisturizing combined with hydration is a hydrophilic and water-soluble substance. It will form a network structure and turn the free water in the network into bound water. They are collagen, at least elastic, hyaluronic acid and so on. 4, repair keratinocytes, repair and moisturize, improve the protective function of the skin and achieve the purpose of moisturizing. Such as vitamins A, C, E, B5, fruit acid, etc. Can improve the function and metabolism of keratinocytes, thereby improving the moisturizing function of the skin. The simplest and most effective way is to drink more water, wash your face and sprinkle some water on your face often.