Anyone Can Claim to Be Therapeutic Grade. Only Young Living Can Claim Young Living Therapeutic Grade™. The process Young Living uses when planting, cultivating, harvesting, and distilling a batch of oil is crucial to retaining its vital compounds. Without the exact blend of naturally-occurring plant chemicals, an essential oil can lose its beneficial properties and fail to produce the desired effect. Young Living Therapeutic Grade (YLTG) means that every essential oil Young Living distills or sources has the optimal naturally-occurring blend of constituents to maximize the desired effect. Young Living is able to make this assertion because of our strict cultivation process—illustrated by the Four Ps—that guarantees the optimal potency of every Young Living essential oil. Plants An oil's potency can be affected not only by selecting the proper plant to cultivate, but also by where the plant is grown, the quality of soil in which the seed is planted, and even the time of day it's harvested. Young Living has extensive experience selecting the correct species of plant for desired oil potency, planting under optimal conditions, using ideal soil and natural methods to encourage growth, and knowing the precise time to harvest each crop. Only those plants that produce the most active and widest array of therapeutic compounds are selected. Preparation Once the optimal soil, plant, cultivation, and harvesting conditions have been adhered to, the plants must be distilled properly in order to meet Young Living Therapeutic Grade standards. Young Living uses a gentle, proprietary technique for steam-extracting the most potent essential oils, which remains unmatched throughout the essential oils industry. To meet Young Living Therapeutic Grade distillation standards proper temperature must be maintained throughout the distillation process, and pressure, length of time, equipment, and batch size are strictly monitored. Purity Young Living Therapeutic Grade standards prohibit the acceptance of any diluted, cut or adulterated oils. Every product Young Living produces—essential oils, oil blends, nutritional supplements, or personal care—meets strict purity standards. Every batch of essential oils is subjected to rigorous, state-of-the-art analysis at the Young Living chemistry lab. Using some of the most advanced equipment in the world, our scientists subject every batch of essential oils to Gas Chromatograph and Mass Spectrometer testing, and heavy metals analysis. Oils that exhibit even the slightest hint of possible adulteration or tampering are rejected. Potency The culmination of the preceding three stages, Potency means that the naturally occurring compounds contained in each essential oil product are of the highest and most consistent bioactive levels. Without strict adherence to the Young Living Therapeutic Grade standard in the Plant, Preparation, and Purity phases, the final product would not have the necessary potency to create the desired effect.