The silkworm is the first stage of a butterfly’s development. At the end of this stage, the worm weaves a cocoon using the material excreted from the glands in its mouth. This secretion consists of soft and shiny filament that has two components: ‘fibroin’, which forms the fiber element, and ‘sericin’, which adds resilience to the cocoon. Fibroin is a protein that nourishes the skin with its strong moisturizer nature. With its peeling property, it cleanses the skin of dead cells and smooths it out. It also cleanses the pores and removes blackheads, allowing the skin to breathe.
With its water- and dye-absorbent and heat-resistant properties, fibroin is the most important support material of silk.
Sericin is a valuable amino acid obtained from silk cocoons. With its affinity to keratin, sericin maintains the cocoon’s moisture balance by protecting it from the outside environment. This amino acid uses its superior moisturizing effect to form a thin film layer on the skin. This creates a softer touch because it is moisturizing, protective, firming and wrinkle-preventing. Sericin also scatters light. This helps eliminate the harmful effects of the sun, giving the skin a shinier appearance.