What role does keratin play in the skin?

Keratin is a vital protein that plays a significant role in maintaining the structural integrity of the skin. It is a key component of the epidermis, especially in the outer layer known as the stratum corneum. The main function of keratin is to provide strength and water resistance to the skin. This is crucial because it forms a protective barrier that helps prevent water loss, keeping the skin hydrated, and also protects underlying tissues from environmental damage, pathogens, and physical abrasions.

This water-resistant property is particularly important in maintaining overall skin health and function, allowing the skin to perform its roles effectively while minimizing dehydration and damage from external factors. The structural strength provided by keratin also contributes to the overall resilience of the skin, enabling it to withstand various stresses encountered in daily activities.