What Is Keratin Protein And Do You Need It Nexxus
Simply put… Simply put… Keratin protein is a type of protein that makes up your hair, skin and nails, and is even found in your internal organs. The reason it has become a buzzword is that it plays a large role in hair protection and repair. Your hair is made up of over 90% protein. Fifty different types of proteins, in fact, but keratin is the major one—and it is responsible for keeping your hair shaft protected from everyday stress by smoothing down the layers of cells that overlap to form your hair strands—a....