Cinnamomum Camphora Worst New ingredients No known benefits Cinnamomum Camphora at a glance Derived from the camphor tree Produces a cooling effect upon application Can cause skin sensitivity with repeated use Cinnamomum Camphora description _Cinnamomum camphora_, more commonly known as the camphor tree, is native to Southeast Asia. When applied, its extract, camphor, produces a cooling effect, which can cause skin sensitivity with repeated use. Inhaling camphor at concentrations of 2 ppm (parts per million) or more may cause sensitivity of the mucous membranes. Camphor can also cause skin and eye sensitivity on contact. Related ingredients: Camphor Cinnamomum Cinnamon