Fuente: WIPO "essential oil or extracts" Patent 514423 The transdermal therapeutic system comprises a backing layer, at least one layer or zone containing nicotine, which can also present adhesive properties, and a protective layer which can be repeatedly peeled off and reapplied. Said system is characterized in that it contains at least one essential oil obtained from a type of mint or a monoterpene ketone, which is found in such essential oils.