Ace the 2026 Colorado Esthetician Written Exam – Glow Up and Shine Bright!

Sweat glands help regulate body temperature by cooling the skin through the process of evaporation. When the body temperature rises, sweat is produced by the sweat glands and is released onto the skin's surface. As this sweat evaporates, it draws heat away from the body, thus cooling the skin and helping to regulate body temperature. This is why the correct answer is A. On the other hand, options C and D, lubricating the skin and providing nutrients, are not functions of sweat glands in regulating body temperature. Option B, cooling the skin, is essentially a restatement of the physiological process described, making it less specific than the correct choice A.