f.
what else you should know
pennyroyal
essential oil
Pennyroyal essential oil, which has a more intense minty aroma than most other mint-based oils, is an ingredient in many perfumes and colognes. It is also used in natural pet products to help repel fleas.
Pennyroyal was a popular culinary herb in ancient Rome and the plant’s essential oil has a long history of use in countering a variety of ailments. Today, the use of pennyroyal essential oil is limited due to the toxicity of one of its key constituents—pulegone. Ironically, however, the oil is used in the food and pharmaceutical industries to flavor beverages, confections and medicines.
The oil is also used in the fragrance industry and is a common ingredient in many popular colognes and perfumes. For example, Armani® Code Sport contains pennyroyal essential oil.