The skin has three layers that house sweat and oil glands, hair follicles, blood vessels, and the cells that give skin its color. These cells are called melanocytes.
Mayo Clinic does not endorse companies or products. Advertising revenue supports our not-for-profit mission.
Check out these best-sellers and special offers on books and newsletters from Mayo Clinic Press.
Your gift can go 3X as far to shape the future of healthcare.