Skin Care Basics
Before delving into the particulars of skincare, better to learn the skin itself. The human skin has three layers: the epidermis, the dermis, and the hypodermis. The hypodermis is the deepest layer and contains a layer of lipids. It also comprises larger blood vessels and nerves.
The dermis comprises the smaller blood vessels, nerves, hair follicles, and microscopic sebaceous glands. The glands produce sebum, a protecting substance that it secretes into the hair shaft. The sebum moves up to the top of the skin through the hair channel. It covers the outer side of the epidermis, thereby providing a protective barrier for the skin from damaging factors. A small film of sebum will protect the skin effectively. An abundance of sebum begins with overly oily skin and can provoke factors for acne.
The epidermis contains multiple sub-layers. It's not required to get into the intricate details here; suffice it to know that cells are created at the deeper level and regularly migrate to the top where they separate off the body. This ascending cell movement helps protect the skin from harmful intruders by acting like ocean currents, moving foreign debris up and out of the skin. When speaking about essential skincare, we are mainly concentrated on the epidermis.