Mint essential oil is made of peppermint (Mentha piperita L.), widely spread in the USA, Western and Eastern Europe and Morocco, using the steam distillation method. Mint essential oil can also be made from other types of mint — Mentha arvensis L., Mentha pulegium L., Mentha longifolia L., etc. Essential oils usually have similar qualities, but a different ratio of the major active substances — menthol and menton.