The structure of natural silk is very similar to human skin, so it has the reputation of "second skin" of human body. Silk beauty has a long history in China. As early as the Ming Dynasty in China, silk was used by court ladies for daily beauty and health preservation because of its important medicinal value. According to Compendium of Materia Medica, silk protein powder can eliminate skin dark spots and treat suppurative dermatitis.
Modern medical experiments further prove that the protein content of silk is much higher than that of pearl, in which the nitrogen content is 37 times that of pearl, and the main amino acid content is as high as 10 times. These amino acids can be directly absorbed and adsorbed by human hair and skin. That is, it is easier to penetrate into the outer layer of human epidermis and accelerate the metabolism of skin.
Extended data:
Silkworm products are warm in winter and cool in summer;
Silk products are one of many people's favorite silk products because they are soft and comfortable, warm in winter and cool in summer. Wang explained: "The hollow structure of silk enables silk to absorb water in time. Therefore, when a person's body temperature is high and sweats, the sweat absorbs the heat of the human body through the evaporation of silk, and people will feel cool;
When the temperature is low in winter, the silk quilt will have a good insulation effect like' double glass'. According to the staff, with the transformation of the production mode of silk products from the traditional manual workshop to the specialized and large-scale production combining machinery and labor, the hand-made "long fiber" silk quilt on the market does have a good effect of being warm in winter and cool in summer, but this statement is not necessarily accurate for the "machine-made silk quilt".
In addition, pure natural silk, because of its chemical structure of 18 kinds of natural amino acids, also has the function of calming human nerves and improving sleep quality.
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People's Network-Why are silk products warm in winter and cool in summer?