Absolute Aromas & every oil in the organic range have been certified by the Soil Association. Each oil can be traced back to the farm where the plant was grown through each stage of production & finally to the beautiful finished product. The organic range has been sourced from many reputable farms around the world. Absolute Aromas have visited many of the farms themselves in order to ensure that the high levels of quality & purity that have made Absolute Aromas stand out in the marketplace remain at the forefront of their company ethos. This Lemon is grown organically in Sicily. It is expressed (the peel is pressed) to give this wonderful zesty oil of outstanding quality. This tangy oil has a clearing effect & so is particularly useful when recovering from general winter ills. It is very effective used in an oil burner. Try adding 2 drops of Lemon 2 drops of Lavender & 1 drop of Geranium to the water in an oil burner when feeling under the weather.