Cinnamomum Camphora Worst New ingredients No known benefits Cinnamomum Camphora description _Cinnamomum camphora_, more commonly known as the camphor tree, is native to Southeast Asia. When applied to the skin, 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