Eva Skin Care presents: 
and THE NATIVE BOTANICAL CO. ®
Welcome to Eva Skin Care
About Skin
Healthy glowing skin is often a sign of a healthy vigorous body. Conversely unhealthy skin is often the sign of a sick body. Skin is a unique organ. It is the largest organ in the body, covering approximately 3,000 square inches and weighing 7 pounds in an average size individual. It belongs to the integumentary system. The integumentary system consists of the hair, skin, nails. sebaceous (oil) gland, and sudoriferous (sweat) glands. Skin protects your body from ultraviolet rays from the sun. It also helps retain essential body fluids. In a larger sense, the skin is also part of the excretory system of the body. Skin is composed of three anatomically distinct layers - the epidermis (the surface we see and feel), the dermis, and the subcutaneous fat layer.
The Epidermis
The epidermis is composed of four layers, but has a thickness about equal to the paper in a magazine, varying from 0.04 mm on the eyelids to 1.6 mm on the palms or soles of the feet. It is composed of the stratum corneum, a bloodless, cornified, stratified squamous with a high metabloic rate, which means that it has a rapid turnover. Beneath these dead skin cells is a layer of living cells, the keratinocytes. The visible top layer of skin is constantly being replenished by three lower layers of the epidermis.
The epidermis is composed mostly of keratinocytes. These cells develop different characteristics with the direction of the internal environment. They produce a surface membrane sometimes referred to as the squamous or horny layer. This is a process whereby germinative or live keratinocytes move upward from the basal layer of the epidermis to become completely hardened or cornified. This cornified layer at the top of the skin protects us from the environment and serves as a protective shield. The epidermal top layer cells (stratum corneum) are constantly being shed from the body surface and renewed from the germinative zone. Cells harden in approximately 14 days. It takes another 14 days for them to reach the surface, moving layer by layer, so the whole process takes about 28 days. The rate of this process varies slightly from one part of the body to the other and can also vary due to age.
