Lemon - Essential Oil. This oil is produced in the beautiful rolling hills of Sicily. This sensational citrus oil is wild harvested from the roaming Italian hills, the Lemon peel is then expressed for its oil bursting citrus aroma & flavour. This oil is rich in vitamin A, B & C, hence its popularity not only in cosmetics but also food. This Limonene rich (approx. 70%) oil has been considered a super food oil for centuries and was very much utilised as a food flavouring & medicine to aid the process of infectious diseases.