The epidermis is one of the layers of the skin and is the outer layer of the skin. It performs a protective function, protecting the skin from external factors such as ultraviolet rays, bacteria and viruses. The epidermis is also involved in the regulation of body temperature and the exchange of substances between the skin and the environment.
The epidermis is made up of several layers of cells that divide and grow to ensure skin renewal and regeneration. In the upper layer of the epidermis there are keratinocytes, which produce keratin, the protein that forms the basis of the skin. Keratin provides skin protection from external influences and also helps retain water in the skin.
In addition, the epidermis contains various glands such as sebaceous glands, sweat glands and hair follicles, which are responsible for secreting various substances necessary to maintain healthy skin.
It is important to note that the health of the epidermis depends on many factors, including diet, lifestyle, genetics and other factors. Disruption of the normal functioning of the epidermis can lead to various skin diseases, such as eczema, psoriasis, dermatitis and others. Therefore, maintaining the health of the epidermis is an important task for every person.