Sericin

Sericin is a natural protein found in silk fibers produced by silkworms to bond and protect the silk strands. It acts as a glue, holding the silk fibers together, and makes up about 25-30% of raw silk. Sericin is known for its moisturizing, antioxidant, and skin-healing properties, which are beneficial in skincare products. When silk is processed for textiles, sericin is often removed to enhance the fabric’s luster and softness. In cosmetics, purified sericin is valued for its ability to hydrate and soothe the skin, making it a natural ingredient in many skincare formulations.