What should I do if my skin is dry due to the hot weather?

What to do if you have dry skin? The key to tender, plump, and bright skin lies in the moisture content of your skin. For example, why the skin of infants and young children is so delicate, bright and elastic is because the skin contains high water content. As the saying goes, their skin is tender and hydrated. The reason why the skin of the elderly is dry, rough, shriveled, flaky and dull is because the skin contains less water. Topical moisturizer is suitable for cold, windy and dry seasons. In the most important season for skin conditioning, there are several ways to moisturize: 1. The oil moisturizing method to prevent skin moisture from evaporating, that is, applying petroleum jelly such as petroleum jelly to the skin, which can seal the skin and remove moisture from the skin. Will not evaporate. The commercially available Pond's Vaseline skin cream uses this principle, but its disadvantage is that it is too greasy and easily stained. 2. Hygroscopic and moisturizing methods that absorb external moisture use glycerin, sorbitol, propylene glycol, polyethylene glycol, etc. They are hygroscopic and draw moisture from the atmosphere into the skin. For example, glycerin is water-absorbent and has a moisturizing function, but you cannot use pure glycerin. Pure glycerin will absorb the water from the skin. The ratio should be 1:3. Generally, 10% to 15% glycerin is added to the prescription. It is oily and absorbs water. 3. Hydration and moisturizing combined with hydration, it is a hydrophilic and water-soluble substance. It forms a network structure, turning free water into bound water within the network. They are collagen, elasticity, hyaluronic acid, etc. 4. Repair and moisturize keratinocytes and improve the protective function of the skin to achieve the purpose of moisturizing. Such as various vitamins A, C, E and B5, fruit acids, etc., they all have the ability to improve the function of keratinocytes, increase the 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 more, and sprinkle some water on your face frequently.