We all know that dry and flaky skin is caused by lack of water. The human body will feel thirsty when it is lack of water. Dehydrated skin will cause flaking and increased wrinkles. So how to replenish moisture for dehydrated skin? Some people spray water directly on the skin. There are also many spray hydrating devices on the market, including negative ion spray hydrating devices, nano spray hydrating devices, etc. There are many types. Is it really useful to use a spray hydrating device to hydrate the face? The moisture of the skin is mainly obtained through diet and drinking water, which is absorbed by the human body through the digestive system and delivered to the skin. It is first stored in the dermis and locked by the hyaluronic acid synthesized by the dermis itself. 100% of the moisture in the dermis comes from the water you drink, and any moisture supplemented by any external method cannot reach the dermis. Most of the moisture in the epidermis comes from the subcutaneous tissue and dermis that gradually loses to the outer layer. Another part is the sweat secreted by the sweat glands. The sweat from the sweat glands is not all secreted in the form of droplets visible to the naked eye. In fact, it is mainly secreted at a smaller flow rate that is invisible. This part of sweat plays a major role in moisturizing the stratum corneum. They are the real source of moisture in the stratum corneum. Most of the moisture replenished by skin care products evaporates, and only a very small amount is absorbed by the skin. Therefore, the most important way to hydrate the skin is to drink water, and the most important thing in skin care is moisturizing, not hydrating. These so-called nano-spray hydrating devices cannot truly hydrate the skin, they only temporarily moisturize the skin, and the moisture will then evaporate and will not be absorbed and utilized by the skin. These nano-spray hydrating devices do not have any moisturizing ability and cannot prevent water evaporation. Their overall effect on the skin is very limited, and they are more of a hype concept. When in use, some nano sprayers allow you to add some toner and essence, but they cannot promote the absorption of these ingredients. The effect is almost the same as applying it directly on the face with your hands. In addition, we often think that hydration and moisturizing are the same thing, but in fact, hydration and moisturizing are two different concepts. The main function of the skin care products we use is moisturizing, which prevents the evaporation of moisture inside the skin. Hydration and moisturizing are different. Hydration means replenishing moisture for the skin. The moisture of the skin is replenished very little through skin care products. Although the skin care products used contain a lot of moisture, most of it evaporates and very little is actually absorbed by the skin. |
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