1, which can be used as silk protein powder. 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. It is easier to penetrate into the outer layer of human epidermis and accelerate skin metabolism.

2. It can be sold to industrial factories specializing in processing silk powder, because silk can be used as an additive for cosmetics or health food, and can also be made into silk paper containing silk powder or packaging materials for food preservation and antibacterial silk materials.

Extended data:

The main component of silk is pure natural animal protein fiber, and its structure is the closest to human skin, with 87% identity. It contains various amino acids necessary for human body, and has the effects of preventing wind, removing dampness, calming nerves, nourishing and balancing human skin. Silk is smooth, breathable, soft, moisture-absorbing, non-itchy and antistatic, and it is a superior material for making close-fitting clothes. Silk quilt with silk as lining has unique qualities and advantages such as close-fitting warmth, fluffy softness, ventilation and health care.

Because silk is slender and soft, it is the fiber with the lightest specific gravity, which has little pressure on human blood vessels and contributes to human microcirculation. It can make people's nerves in a relatively stable state and improve the quality of sleep.

Baidu encyclopedia-silk

People's Network-Private enterprises in Wujiang, Suzhou dig deep into the efficacy of silk and innovate and develop silk mask