Camphor is the essential oil from the camphor tree, an evergreen Asian plant which belongs to the laurel family and can reach a height of up to 40 metres.
The active ingredient camphor is used, for example, in Ayurveda and in traditional Chinese medicine as a remedy for muscle ailments and rheumatism. Several biological properties are attributed to camphor, including activities that reduce coughs and relieve pain. In addition, camphor activates and sensitises the TRPM8 receptor, which triggers a pleasant sensation of cold. This effect is further enhanced in combination with menthol.