What is the name of the second layer of skin, often referred to as the "true skin"?

The term "true skin" specifically refers to the dermis, which is the second layer of the skin situated beneath the outermost layer, the epidermis. The dermis is composed of connective tissue and contains a variety of structures, including blood vessels, nerve endings, hair follicles, and sweat glands. This layer is crucial for providing strength and elasticity to the skin, thanks to the presence of collagen and elastin fibers.

The epidermis serves as the protective outer layer, mainly consisting of keratinized cells that help prevent water loss and shield against pathogens. While the hypodermis (also known as the subcutaneous layer) lies beneath the dermis and consists largely of fat and connective tissue, it does not contain the structures and functions that characterize the dermis. Thus, referring to the dermis as the "true skin" underlines its essential role in supporting and nurturing the more superficial layers.