Our lavender essential oil comes directly from farmers’ cooperatives in Haute-Provence and is always P.D.O. certified. P.D.O. stands for Protected Designation of Origin - it’s a label given to products by the European Union when they’re top notch. That preserves the purity of the ingredients, a commitment we cherish at L’OCCITANE. You deserve the highest quality natural beauty products, and quality starts at the root.