Keratin is a tough, fibrous protein that plays a crucial role in providing support and protection to various parts of the body. Here are five functions of keratin:
- Protecting epithelial cells: Keratin forms a protective barrier for epithelial cells, which are the cells that line the surfaces of your body, including your skin, mouth, and digestive tract. It helps to prevent damage from the environment and keep these cells healthy.
- Strengthening internal organs: Keratin is present in the tissues of several internal organs, contributing to their structural integrity and strength. For example, it is found in the epithelial lining of the digestive system, helping to protect it from harsh conditions.
- Forming the outer layer of the skin: Keratin is the primary component of the epidermis, the outer layer of your skin. It provides a protective barrier against abrasion, moisture loss, and harmful UV radiation.
- Strengthening and repairing hair: Keratin is a key component of hair, giving it its strength, flexibility, and resilience. Keratin also plays a role in hair growth and repair.
- Maintaining the elasticity and firmness of the skin: Keratin helps maintain the skin's elasticity and firmness, preventing it from becoming loose or saggy.
