Scientific Skin Care News 4

“Roopada”

Scientific Beauty News Letter

5.    Easy Knowledge of Skin for you!
 

Human skin is the outermost covering of the body. It is the largest organ of the intagumentary system.  The total area is about 20 square feet. It is a multi-layered organ. It guards the internal organs including muscles,  bones, visceral organs etc. The skin protects us from microbes and the elements help regulating the body temperature and permits the sensations of touch, heat and cold.

Although the human skin appears almost hairless, it is mostly covered by fine hair, but it is not protected by fur. most of the skin is between 2–3 mm (0.10 inch) thick. The average square inch of skin contains on an average about 650 sweat glands, 20 blood vessels, 60,000 melanocytes, and more than 1,000 nerve endings.

Skin has three layers:

The epidermis, which is the outermost layer of skin. It provides a waterproof barrier and creates our skin tone.

The dermis, which lies beneath the epidermis, contains tough connective tissue, hair follicles, and sweat glands.

The deeper subcutaneous tissue (hypodermis) is made of fat and connective tissue.

Skin has mesodermal cells. It has its own pigmentation which comes from melanin which is secreted by the melanocytes.

Melanin absorbs the potentially dangerous UV rays from the sun light.

Skin also contains DNA repair enzymes that helps reverse the UV damage.

When we talk about the human skin, it varies a nit in men and women. Besides having facial hair, there are few differences in woman’s and man’s skin. Stimulation by Androgens causes an increase in skin thickness, and therefore the man’s skin is about 25% thicker then women.

Along with the higher thickness, the man’s skins texture is tougher. Also there is difference in sebum content. After puberty, the sebum production is greater in men’s then in women. Because of this, the man’s skin is oilier and the problem of acne is more prominent in men and it takes longer time to get treated.

Also the male and female skin differs in the dermis. Man’s skin has more of collagen density then a women. You must know that the ageing of the skin at dermal level is directly associated with the collagen content of the dermis, therefore women age faster than men. You can expect about 10 years difference in man’s and women's skin of same age.

That is why you can understand that men use less of skin care for protection, they are more in sun with bare skin but still the damage can be more prominently seen in women.

Credit : Rahul Phate’s