Despite their rise in popularity, there still seems to be an air of mystery around where essential oils come from and how they differ from other oils. So here it is, a simple biological answer to the question: where do essential oils come from?
Essential oils come from plants and are actually produced by the plant for several reasons. Essential oils can help competing vegetation from growing within the area, serve as a defense against insects or other animals and protect plants from bacteria and fungus.
Depending on the plant, essential oils are stored in different places such as on the surface of the plant (lavender) or inside the plant material (lemon). The location of the essential oil within the plant will determine the way the oil is extracted and made into the final product we buy in stores.
A plant is able to adapt and thrive in its environment because essential oils are constantly changing their chemical composition to fit changing conditions. The plants growing in your region will likely contain the chemical composition that is best suited to your climate and therefore can help with associated skin conditions or even the common cold.
Finally, essential oils, as they are sold in stores, are the most concentrated oil you can find. Pretty much every essential oil, except for a select few, need to be diluted down in order to be safely applied to the skin.