Silk protein is a fibrous protein formed by converting silk from the cocoon of the silkworm. Its molecular structure is similar to that of the collagen fibers that make up our skin. It naturally helps to increase skin elasticity, speeds up skin cell functioning, prevents wrinkles, and tightens and smooths the skin.
There are two specific proteins in silk with skincare benefits: sericin and fibroin. Sericin forms a layer of protection over the skin and helps promote hydration. Fibroin helps repair skin cells and balance moisture levels.