The layer of skin that contains dead keratin?

The layer of skin that contains dead keratin is the stratum corneum, which is the outermost layer of the epidermis. This layer consists of dead skin cells that are rich in keratin, a protein that provides protection and helps prevent water loss. The stratum corneum plays a crucial role in the skin's barrier function, shielding underlying tissues from environmental damage and pathogens. As cells in this layer shed and are replaced, they help maintain skin health and integrity.