We continued with our anatomical and physiological examination of human skin by concentrating on the dermal layer. The inclusion of nerve endings, blood vessels, sweat glands, hair follicles, and fat molecules allowed us to discuss the role of each in the physiology of the skin. The occurrence of melanin, a pigment, in this layer was discussed as to how it effects skin color and developed as protective chemical against UV rays. The need to adjust lotions, creams, ointments and makeup because of the presence of this pigment was also discussed