Actinic cheilitis is a condition where the outer layer of the lips becomes damaged. It is often caused by chronic sun damage and has a range of dermatological treatment options, including laser ...

Neurons talk to one another using electricity. If you could hear these impulses, they might sound like constant, rapid-fire ...

Vitamin C fuels skin regeneration by unlocking genes that drive cell growth—making aging skin act young again.

New research has, for the first time, discovered hemoglobin in the uppermost layer of human skin, and found that it helps protect against damage. The findings provide important insights into skin ...

The stratum corneum is the top layer of your epidermis (skin). It protects your body from the environment and is constructed in a brick-and-mortar fashion to keep out bacterial and toxins.

As we age, our skin naturally becomes thinner and more fragile due to a decline in cell production. Now, researchers have ...

Epithelial tissue is composed of embryonic layers. They form from ectoderm, mesoderm, and endoderm. Since they are made up of these materials, epithelial tissues line areas of the body like body ...

The skin acts as the body's first line of defense against external threats. However, as we age, the epidermis—the outermost ...

Your skin is a complex organ. Explore its layers and how each functions, from the epidermis to the subcutis. Learn key tips for healthy skin and the roles of collagen, elastin, and keratin.

The outer layer of your skin, or skin barrier, is your body’s first defense against external harms, but it’s not immune to damage. That’s why it’s important to take precautions when you ...

The outermost layer of skin, known as the epidermis, is the thinnest layer. It's composed of layers of flattened cells, called epithelial cells, which collectively act as armor , protecting the ...

Keratin 3 (a type of protein) is produced in a tissue on the surface of the eye called the corneal epithelium. This tissue forms the outermost layer of the cornea, which is the clear front ...