As we have mentioned, your skin is a living, functional organ – and it does a lot to protect you. “Skin provides clues about what is happening below the surface in terms of immune function, nutrition, oxidative stress and metabolic issues to keep some names, but it is the first line of defense against infection, environmental stresses and nutrients and water loss,” board-proposed. Keira Barr, MD, Once Told us, Skin microbiom Constantly interacting with our environment and works to support our health to protect against infection, affect the immune response, to protect from UV radiation, and helps to nourish skin cells. ,