Britannica Sources used in this answer

How many main layers does human skin have?

Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

Human skin consists of three main layers of tissue:1

  • Epidermis: The outermost layer, which contains the primary protective structure known as the stratum corneum.1
  • Dermis: A fibrous, thicker layer of connective tissue that supports and strengthens the epidermis. It contains nerves, blood vessels, hair follicles, and various glands.123
  • Subcutis: A subcutaneous layer of fat located beneath the dermis that cushions and insulates the body while supplying nutrients to the layers above.1