The CBD in this formula comes from hemp grown on American farms.† Green Roads’ CBD oil is made using the company’s rigorous quality control methods. Like every Green Roads CBD product, it’s formulated by a licensed compound pharmacist with over 25 years of experience. Green Roads’ raw materials are extracted using cutting edge methods. The final products are sent to a third-party lab for testing to ensure what’s on the label matches precisely to what’s in the bottle. 100mg CBD Oil is perfect for CBD beginners or people who know they prefer a mild serving of CBD.† Each 1ml serving of this oil delivers 7mg of supportive CBD. 250mg CBD Oil delivers the perfect mid-range serving of CBD. You get approximately 17mg of CBD with each 1ml dropper of this oil. The easy-to-use dropper makes administering and measuring out servings a breeze.† Place the serving under your tongue and hold it there for 30 seconds before swallowing.