Esthetics Essay

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IN THE BEGINNING: Estheticians who specialize in the health and beauty of the skin, waxing, and makeup are sometimes referred to as technicians, skin therapists, or specialists An esthetician’s primary focus is on preserving, protecting, and nourishing the skin. SKIN FACTS: Skin layers, nerves, cellular functions, hair follicles, and glands all work together harmoniously to regulate and protect the body. Healthy skin is soft, smooth, and somewhat acidic. Our skin is a cell-making factory with miles of blood vessels, millions of sweat glands, and an array of nerves within a network of fibers. Appendages of the skin include hair, nails, sweat glands, and oil glands. The skin of an average adult weighs 8-10 lbs and averages an area of about 22 square feet. It contains one-half to two-thirds of the blood in the body and one-half of the primary immune cells. Each inch of skin contains aprx: millions of cells, 15 feet of blood vessels, 12 feet of nerves, 650 sweat glands, 100 oil glands, 65 hairs, 1,300 nerve endings, 155 pressure receptors, 12 cold and heat receptors. SKIN FUNCTIONS: Primary functions of the skin are protection, sensation, heat regulation, excretion, secretion PROTECTION The outermost layer traps water in the body. Sebum on the epidermis gives protection from external factors. The acid mantle is the protective barrier made up of sebum, lipids, sweat, and water that form a hydrolipidic film to protect the skin from drying out and from exposure to external factors. The acid mantle has an average pH of 5.5. The acid mantle is part of the skin’s natural barrier function, a protective barrier on the epidermis. The barrier function protects us from irritation and intercellular TEWL (transepidermal water loss) - the water loss caused by evaporation on the skin’s surface. Lipids are substances that contribute to the

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