What is the protein in cow hooves? A deep dive into keratin
                                
                                
                                •
                                
                                
                        
                                    
                                    4 min read                                
                            
                                Hooves are composed of over 90% protein, primarily a specialized type known as keratin. The composition of this remarkable biomaterial is central to a cow's health and mobility, and understanding what is the protein in cow hooves reveals its unique properties and surprising industrial applications.