What is the deepest layer of the skin?

The deepest layer of the skin is known as the hypodermis. This layer, also referred to as the subcutaneous layer, is composed mainly of adipose (fat) tissue and connective tissue. It serves essential functions, such as insulating the body, storing fat for energy, and providing a cushion to protect underlying structures like muscles and bones. The hypodermis anchors the skin to the underlying tissues but is not considered a true layer of the skin itself, which comprises the epidermis and dermis.

The dermis lies above the hypodermis and contains a variety of structures, including blood vessels, hair follicles, and nerves, but it is not the deepest layer. The skin epithelium, or epidermis, is the outermost layer of the skin, making it the most superficial rather than the deepest layer. Understanding this hierarchy of skin layers is crucial for skin-related treatments and therapies in electrology and laser practices.