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Scientific Advisory Board (SAB)

doterra scientific advisory board

Left to right: Jennifer Eddins, Tonya McBride, Nicole Stevens, Dr. David Hill, Dr. Paul Winterton, Teresa Sturges.

The mission of the Scientific Advisory Board is to educate the general public with current and future research on meaningful contributions to education and integration of essential oils into health, scientific, and personal use environments.
David Hill, DC
Chief Medical Advisor
Chairman, Scientific Advisory Board

Extensive experience qualifies Dr. Hill to stand at the head of a new era of education and understanding of natural medicine and essential oils. He remains on the cutting edge of technology by immersing himself in research, and is dedicated to educating and empowering others to take control of their own health.

For nearly a decade, Dr. Hill worked locally as a physician in family practice to provide valuable essential oil insight into the traditional protocols and practices of modern medicine.  

Dr. Hill is well recognized in the field of integrative medicine and essential oils and, as such, he has been invited to interact with a number of large, established hospitals, including Beth Israel and Vanderbilt University Medical Centers. Dr. Hill consults with these hospitals on ways to integrate CPTG Certified Pure Therapeutic Grade® essential oils into modern medical practice.

Dr. Paul Winterton
Scientific Advisory Board Member

Dr. Paul W. Winterton is a Board Certified Orthopedic Surgeon. He earned his medical degree from Harvard Medical School in 1993 and completed his Orthopedic Surgical Residency at the Mayo Clinic in 1998. Following his residency, Dr Winterton completed two fellowships at The Institute For Bone and Joint Disorders in shoulder and knee reconstructive surgery/sports medicine, as well as foot and ankle reconstruction in Phoenix, Arizona.

Following his formal orthopedic training, Dr. Winterton opened Southtowne Orthopedics and the Utah Cartilage and Ligament Repair Center in Salt Lake City in 1999. He has served as orthopedic consultant for the Utah Jazz NBA franchise as well as team physician for the IHL Utah Grizzlies professional hockey team.

Currently, Dr. Winterton serves on the Board of Councilors for The American Academy of Orthopedic Surgeons. For a number of years, he has advocated the integration and practical use of essential oils in his practice. As a member of the Scientific Advisory Board for dōTERRA, he is currently researching the basic science, cell biology, and clinical application of essential oils. He is a strong proponent of the practical use of essential oils and dietary supplements in the home as well as in the traditional western medical clinical setting, particularly with regard to bone and joint well being.

Tonya McBride, R.N., Charge Nurse
Scientific Advisory Board Member

Tonya has been a practicing Registered Nurse since 2001, earning her degree from Tennessee State University, with earlier experience as an EMT in 1996. Her experience is primarily in emergency and critical care nursing. She currently is a Charge Nurse in the Adult Emergency Department at Vanderbilt University Medical Center in Nashville,TN. Tonya has always had an interest in natural health-care alternatives, but quickly became immersed when introduced to essential oils in 2008. She has been a dedicated user, promoter, and educator ever since. Tonya has experienced the healing properties and the healthful benefits of incorporating certified pure therapeutic-grade essential oils into everyday living. Tonya is a strong proponent of self-care, disease prevention, and taking responsibility for your own wellness. One of her goals is to contribute to the integration of traditional and alternative health modalities. She is involved in leading a wellness initiative in the Emergency Department at Vanderbilt Medical Center and is involved in nursing research incorporating the use of essential oils in the hospital setting.

Teresa Sturges, R.N., Charge Nurse
Scientific Advisory Board Member

Teresa has been a registered nurse for over 10 years with the majority of her career in Emergency Nursing. She is currently a Charge Nurse in the Emergency Department at Vanderbilt University Medical Center in Nashville, TN. She is passionate about health and wellness, which has lead to her desire to learn, use, and share dōTERRA essential oils, Lifelong Wellness Supplements, and Skin Care Products with others. She and Tonya McBride were pioneers in the initiation of a Wellness Committee within the Vanderbilt Emergency Department, which incorporates dōTERRA essential oils to enhance staff health and wellness. Teresa is an advocate for integrating dōTERRA essential oils into the hospital setting to be studied for patients' response and outcomes.

Nicole Stevens, MSc
Scientific Advisory Board Member

Nicole Stevens is an essential oil enthusiast with a professional desire to increase the credibility and the scientific understanding behind natural products. She has been researching the various properties of essential oils for much of her career. Nicole earned her undergraduate and master's degrees at Brigham Young University. Her master's thesis was entitled "Bioassays to Determine Anti-Cancer Activity of Essential Oils." For that project, nearly 70 essential oils and oil blends were tested against five different types of cancer in vitro. In 2003, Nicole began working at the UNLV Cancer Research Center and completed a project looking at the possibility of using essential oils in a process called photodynamic therapy. This is a procedure that uses targeted photosensitizing chemicals and specific wavelengths of light to destroy cancer cells. From 2009–2010, Nicole worked at the University of Utah. There, she completed a study analyzing the effectiveness of dōTERRA essential oils against various microbial pathogens including Staphylococcus aureus, Escherichia coli, and Klebsiella pneumonia.

Jennifer Eddins, SM(ASCP)
Scientific Advisory Board Member

Jennifer is certified as a Specialist in Medical Microbiology with over 21 years experience in the medical field, as well as 16 years experience with fungal air sampling. She graduated from Colorado State University with a bachelor degree in Microbiology. Jennifer is the lead microbiologist at a local hospital and actively participates in best practice methods for helping find the most effective ways to care for patients. She is currently researching the effects of On Guard® on MRSA isolates and also comparing them to the efficacy of Melaleuca on MRSA.


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