You can go to the website link to learn of the extreme extraction techniques DoTERRA uses to keep their products of the highest grade and best quality. Because of their strict titrations- there oils are very potent and therapeutic. They also can be taken internally because their are no additives or anythings used on the plants or added after. You can click on the website link to order at retail or e-mail me if you would like to enroll to order at wholesale, which is a 25%discount. This is a great product to add to your spa, aroma touch, massage, and chiropractic offices and you will see the tremendous boost in sales. Let me tell you how it will benefit your business... email me at [email protected] to discuss our further working together to help your clients and enrich their lives.