Colorado Cosmetology Written Practice Exam

Each option refers to a different type of gland in the body. Eccrine glands are responsible for producing sweat, which helps regulate body temperature. Endocrine glands are responsible for producing hormones. Sebaceous glands are responsible for producing sebum, an oily substance that lubricates the skin and hair. Sweat glands produce sweat, which has a similar function to sebum but is mostly made up of water and electrolytes. Therefore, the correct answer is C, as sebaceous glands directly produce the substance that lubricates the skin and preserves the softness of the hair.