Providing essential information on this topic, Skin Deep, Third Edition addresses every aspect of the skin--the body's largest organ--including vital matters related to skin care, skin disease, and treatments. In more than 1,100 entries, this book covers everything from the sun and skin to acne and skin cancer to cosmetics and skin lotions. Almost every entry has been revised and updated to include the latest information on the cause and treatments of certain diseases and conditions. Also included is the latest information on skin medications, vaccines, aging issues, sun exposure, and more. New entries include allergic reactions, autologous fat transplants, biological implants, botox, cosmetic surgery, dermal stimulator, dihydroxyacetone (DHA), elephantiasis, infantile acropustulosis, laser hair removal, Louis-Bar syndrome, Merkel cell cancer, microdermabrasion, nevi entries, pemphigoid, post-inflammatory pigmentation, prohibited cosmetic ingredients, skin fillers, spider bites, and syringomas.