Whether in toothpaste, chewing gum or candies, the minty taste of the world’s most-sold flavor ingredient, menthol, can be found in countless everyday products. But menthol owes its popularity not only to its fresh taste, but also to its cooling effect on the skin and mucous membranes. This is why it is often used for pharmaceuticals and cosmetics like cooling ointments, inhalations, deodorants and shower gels. The worldwide demand of 25,000 to 30,000 metric tons per year already exc...