Which layer of the skin contains collagen protein and elastin fibers to help give the skin its elasticity and pliability?

The dermis is the layer of skin that contains collagen protein and elastin fibers, which are essential for providing the skin with elasticity and pliability. Collagen, a structural protein, offers strength and support, while elastin is responsible for the skin's ability to stretch and return to its original shape. Together, these components help maintain the skin's structural integrity and resilience, making the dermis a vital layer for overall skin health.

In contrast, the epidermis is the outermost layer of skin and primarily consists of keratinocytes, which produce keratin, a protein that helps in protecting the skin but lacks the structural proteins found in the dermis. The subcutaneous layer, which lies beneath the dermis, is mainly composed of fat and connective tissue, serving more for insulation and cushioning rather than elasticity. Lastly, the stratum corneum is a layer of the epidermis made up of dead skin cells that provide a protective barrier, but like the epidermis, it does not contain collagen or elastin.