Now, in this diagram, I skip the Stratum granolosum and I also skip the Stratum lucidum. I go directly to the Stratum corneum, this brown layer that consists of these dead carotenesites that contain the keratin, that gives the skin strength and makes it waterproof, impermeable to water. Now let's move on to this middle layer of our skin known as our dermis. Now, our epidermis is connected to the dermis via a basement membrane that consists of a network of proteins. And just like we can divide the epidermis into five layers, we can divide the dermis into two layers. This upper layer of the dermis is known as our papillary layer, and this next layer is known as our reticular layer.