This rosemary essential oil is 100% pure and natural, undiluted. It is produced and distilled in Corsica, where it grows in the wild. Our essential oils are all organic, and our farm is certified every year by Bureau Veritas. We focus on producing a high quality product. We harvest our plants manually at the right time. Right after, we distill them, so that they remain fresh and rich in all their properties. The twigs and leaves are distilled in a large traditional copper still to best guarantee the quality of the essential oil. We use steam for distillation. We produce it with mountain spring water from Corsica, pure water coming directly from the source. All these steps allow us to produce a precious organic essential oil rich in all the properties of rosemary.