No, the outer layer of skin, called the epidermis, is not made of living cells.

Here's why:

* Keratinization: The outermost layer of the epidermis is composed of dead cells filled with a tough protein called keratin. These cells have lost their nucleus and organelles, becoming essentially hardened and protective.

* Protective Barrier: This layer serves as a barrier against environmental factors like bacteria, viruses, and UV radiation.

* Constant Renewal: The deeper layers of the epidermis contain living cells that constantly divide and migrate upward, replacing the dead cells that are shed from the surface.

In summary, while the epidermis is formed from cells, the outermost layer consists of dead, keratinized cells that act as a protective barrier.