100% Natural Golden Raw Silk are Natural Polymer, Biocompatible, Antibacterial, 100% Biodegradable, No Microplastics, Ecologically-friendly Feature: Strong antioxidant effect of carotenoids helps to protect skin from UV rays and prevent melanin pigmentation. Sericin, which is rich in protein, helps to moisturizing, regenerating, elasticity, whitening, exfoliation, anti-wrinkle, healing wounds, anti-inflammatory, anti-bacterial. It also has a much higher Sericin content than ordinary silk. (Medisilk: not less than 650 mg; General silk: 300 mg average). Sericin coatings are naturally formed on the skin to nourish and protect the skin healthy.