Silk is composed of "fibroin and "sericin," 2 types of proteins. Sericin is said to have the same moisture-retaining properties as human collagen. "Fibroin" is said to have a reviving effect on damaged skin through promoting growth of skin cells.
Mucous membranes inside our mouths deteriorate as we age, along with the muscles in our mouths. Generally we hardly ever massage the insides of our mouths. We feel that we are cleaning the insides of our mouths by brushing our teeth and gargling water. This product also has bacteria eliminating properties. Let's use this brush to strengthen our mucosal cells, massage the muscles inside our mouths, and erase smile lines. We recommend this product to clean inside the mouths of bedridden people also.