There is no way that you can be certain your oils are really “pure” and truly “natural” unless you have hundreds of thousands of dollars worth of laboratory equipment AND the training to interpret the results from the testing equipment.  Therefore, we must rely upon our trust in the integrity of the company that produces the oils.

Young Living’s “Seed to Seal” guarantee of quality means that they oversee the entire process of cultivating the land, planting the high quality seeds, nurturing the plants, harvesting, distilling, testing, and packaging their products to ensure that we are getting the very best possible.

Note:  You may not be able to tell by the aroma of the oil.  However, if the oil contains only plant material, there will be differences in the aroma from one distillation to another.  If it is synthetic, the aroma may be exactly the same every time (as in perfumes).