Filaggrin is a really important protein found in our skin! The degradation of this protein makes it possible for our outer skin layers to maintain an adequate water supply in dry or arid environments. When our skin is occluded or humidity is high, there is a minimal breakdown of this protein. When we are in more arid climates, the filaggrin breakdown increases to produce more natural moisturizing factor. More NMF is a good thing!
Click here to see a longer post on this topic – chemistry of our skin!