All of Plant Therapy’s essential oils are 100% pure, additive, and filler-free. So what’s the big deal with the organic label? Each organic product is certified through the strict standards of ECOCERT ICO, and accredited through The National Organic Program (NOP). To qualify, we cannot use any Genetically Modified Organisms (GMOs) when we plant, harvest, or process the oil. Furthermore, the soil where the plants grow must not have been free of prohibited substances for at least three years. No harmful pesticides can be used. Additionally, producing organic products helps preserve biodiversity.