Soaps loosen particles of dirt and grime by dissolving grease residue left on the skin of the skin's natural oils, creams and makeup. The physiology of the skin and cosmetics How do they affect skin function The skin consists of three main layers: the epidermis, dermis and hypodermis. The epidermis is the layer that we see with our eyes or age, remarkable changes occur which are hidden from view. For.. Read More