Penny Royal is a perennial herb that grows up to 50cm (20 in) tall with smooth roundish stalks and aromatic, gray-green oval leaves.
Penny Royal Essential Oil was traditionally used to strengthen the nerves, being valuable in hysteric disorders, nervous exhaustion and externally applied for neuralgia. It has a long traditional use as a carminative, diaphoretic, stimulant and as an emmenagogue.
Penny Royal Essential Oil has a scent very similar to peppermint. Users should expect it to be sweet and herbaceous.