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 integumentary system is the physical system that forms the barrier between the external environment and the internal systems of the body. In humans, this system consists of skin, hair, nails ...

The subcutaneous layer is the deepest skin layer. It protects a person’s body and keeps it warm. This layer also provides insulation and protection for vital tissues such as muscles, bones, and ...

The skin is the body's largest organ and performs many vital functions. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Skin is the body's ...

Whether your skin care regimen is simple or highly advanced, it should probably contain hyaluronic acid (or HA) in some way, shape, or form. HA can hold up to 1,000 times its own weight in water ...

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.

Layers of Skin and Their Functions. Story by Heather L. Brannon, MD • 1y. The skin has three basic layers, ... If you count the layers within the layers, the skin has eight or even 10 layers.

Sebaceous glands are essential for maintaining the structure and function of the skin. In a process known as holocrine secretion, cells in the periphery of the gland accumulate large amounts of ...