Human body is a complete device formed by a large number of elements, being the skin one of the most important and vital for our global health and well-being. In addition of acting as first line of defense or our body against bacteria and viruses, healthy skin support liquid balance and contributes to regulate body temperature. It is very sensitive and identifies the softest touch and pain. It is the largest and more visible organ that covers almost 2 m2 and represents nearly a sixth part of our body weight. The skin texture can influence a significant impact in the self-esteem.


The skin is made up of three main layers: epidermis, dermis and subcutus or subcutaneous tissue, each one of them is formed by several sub layers. The appendages of the skin, such as follicles, sebaceous glands and sweat glands also play several roles in its global function.