Soft keratins are a type of protein found in various tissues of the body, particularly in epithelial cells. They are a key component of structures like hair, skin, and nails. Soft keratins provide flexibility and resilience, allowing these tissues to withstand mechanical stress while maintaining their integrity. Unlike hard keratins, which are found in structures like hooves and feathers, soft keratins are more pliable and less rigid. This property makes them essential for the protective functions of the skin and the structural characteristics of hair. Overall, soft keratins play a vital role in maintaining the health and functionality of various body parts.