Your skin is made up of three layers and is the biggest organ in your body.
skin: each floor has a different situation, and they all work together to defend your body from external aggressors, control body temperature, and allow you to feel and touch things. The three layers of skin, as well as their composition and functions, are described here.
1. The epidermis.
The epidermis is our skin’s outermost layer. It shields you from the adverse effects of the environment (UV, smoke, pollution, germs) and regulates permeability (hydration levels). It’s an epithelial tissue made up of three different cell kinds. Keratinocytes account for 90% of the cells. They produce keratin (which is also found in hair) to protect the epidermis and its permeability.
Melanocytes (skin pigmentation cells that defend against UV) and Langerhans cells, which are part of your immune system, are the other two types of cells. The stratum corneum, the transparent layer, the granular layer, the spinous layer, and the deep basal layer are the five layers that make up the epidermis. Epidermal cells are born in the basal layer and migrate, change, and specialize as they progress through the layers.
The hydrolipidic film is a thin layer made up of lipids, fat, and sweat that sits on the surface of the epidermis (the skin we see). This layer strengthens the skin’s defenses against germs while also keeping the epidermis from drying out. Again, active chemicals and nutritional therapies perform their magic on this higher level.
2. The dermis
The dermis is a connective tissue that lies underneath the epidermis. It comprises two types of cells: fibroblasts, which generate the support fibers elastin and collagen, and fibroblasts, which do not. The dermis is separated into two zones: the papillary dermis (which is packed with nerve endings) and the reticular dermis (which is devoid of nerve endings) (a dense mesh of support fibers). The dermis is responsible for the face’s ‘architectural characteristics’ and supporting the epidermis, and protecting blood vessels and nerves.