Basic Function of Skin

What is Skin?

Skin is the largest organ of the human body, which accounts for 16 percent of the human body weight. Understand the basic functions of the skin helps you determine why and how certain product’s ingredients affect the skin. It also allows you to know why a certain skincare concern occurs.

Layer 1 – Epidermis

The epidermis is the upper or outer layer of the main layer of cells that makes up the skin. This is the part of the skin that can be seen and feel.  To maintain and nourish the epidermis you will use moisturizer.

Importance of Epidermis

  • Keratin layer is the dead skin on stack top of each other on the epidermis. So when you touch your skin, you are feeling the keratin layer.
  • Pores are the passageway into and out of the skin.
  • Hair comes out of the pores, which is found in most pores on the body, except for areas like palms, lips, and around the eyelids.
  • The basal layer is where the new cell is made. When cells are created in the basal layer, they are plump, bouncy, and firm. The cells leave the basal layer by traveling up the epidermis, which then begins to flatten and die.
  • Lipid film aka acid mantle is where the oil and sweat mix together on top of the keratin layer to protect the environment.

***  Note:Younger skin ( Ages 0 to 30) takes 30 days for the skin cell to reach the keratin layer, which is often called cell turn overate. Aging ( Age 30 and up) or environmental damage skin can take up to 60 days for skin cells to reach the keratin layer. As of result, it takes 30 to 60 days to know whether or not your skin care product is truly working. ***

Layer 2 – Dermis

Dermis is the lower or inner of the two main layers of cells that make up the skin. This is the part of skin that lay deep inside under the epidermis. This is the part of the skin that cannot be seen of feel. If you cut yourself and bleed, you had reached your dermis. To maintain and nourish the dermis you will use serum.

Importance of Dermis

  • Collagen is laid within the dermis. It is the part help make your skin firm. So imagine collagen like the spring in the mattress. The older the mattress, the less it will provide that firm spot to sleep.
  • Elastin is tied together with the collagen. It is the part that makes your skin bounce back. Imagine elastin-like a rubber band. No matter how you stretch it the rubber band will snap-back. As the rubber band gets older and had been stretched too much, it will not support as well as they used to and start to sag.
  • The sebaceous gland produces oil, which allows the hair to help the oil travel up to the keratin layer of the skin. Individuals produce different amounts of sebum depending on hormone levels. The oil keeps the skin supple and hydrated. Excess oil is when it becomes a concern.
  • Sweat gland helps cool the body and help remove the toxin.

*** Note: Your body naturally produce glutathione, which is what tell the your collagen and elastin to produce. Acyl help stabilize the glutathione. So using products that have acyl glutathione will help produce more collagen and elastin, which keep the skin from losing its firmness and avoid early sagging. ***

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