Scientific Advisory Board

As a high-quality supplement brand, Natrol is committed to producing the highest quality sleep, mood and stress, and brain health supplements including melatonin and 5-htp that support the health and wellbeing of our consumers. That’s why we’ve convened an expert-led Scientific Advisory Board so that we continue to understand and meet best industry standards and innovate new offerings to meet consumer demand for what they need today and what they’ll want tomorrow.

Meet the Natrol Scientific Advisory Board

The Natrol Scientific Advisory Board consists of noted individuals and industry sleep experts with credentials and experience in the area of sleep. The advisory board provides strategic guidance and third-party credibility to support our research, strategies, quality assurance and communication initiatives.

Dr. Helen Burgess

Helen J. Burgess, PhD

Area of Expertise


Dr. Helen Burgess is a Professor of Psychiatry and Co-Director of the Sleep and Circadian Research Laboratory at the University of Michigan. Dr. Burgess’s work and research focuses on sleep and circadian rhythm influences, specifically in the assessment and treatment of sleep and circadian disturbances in a variety of human clinical conditions including alcoholism, chronic pain conditions, diabetes, depression, HIV and post-traumatic stress disorder.

At the invitation of the American Academy of Sleep Medicine, Dr. Burgess assisted in formulating the latest clinical practice guidelines for the treatment of circadian rhythm sleep-wake disorders. She has also made multiple presentations at the National Institutes of Health on the topic of sleep and circadian rhythms.

Dr. Burgess received her PhD from the University of Melbourne, Australia, and completed a postdoctoral fellowship at the University of South Australia and second fellowship at Rush University Medical Center in Chicago.

Dr. Michael Grandner

Michael Grandner, PhD, MTR, DBSM, FAASM, FAHA, FSBSM

Area of Expertise


Dr. Michael Grandner is the Director of the Sleep and Health Research Program at the University of Arizona, Associate Director for Behavioral and Translational Science at the Center for Sleep, Circadian and Neuroscience Research and the Director of the Behavioral Sleep and Circadian Medicine Clinic at Banner- University Medical Center in Tucson, AZ. Dr. Grandner is also an Associate Professor of Psychiatry, Psychology, Medicine, Nutritional Sciences, and Clinical and Translational Sciences at the University of Arizona.

In his work, Dr. Grandner specializes in transitional sleep research and behavioral sleep medicine, studying the treatment of insufficient sleep and sleep disorders through behavioral and other non-medication interventions including nutritional supplements. Dr. Grandner also focuses on downstream cardiovascular, metabolic, immunologic, cognitive, mental, and behavioral health outcomes associated with sleep as well as upstream social, behavioral, environmental, and biological determinants of sleep and circadian health.

Dr. Grandner received his PhD in Clinical Psychology at the University of California San Diego and San Diego State University. He also completed postdoctoral fellowships in behavioral sleep medicine and sleep and circadian neurobiology at the University of Pennsylvania and Philadelphia VA Hospital. He then completed a Masters degree in Translational Research at the Perelman School of Medicine at the University of Pennsylvania. He is an elected fellow of the American Academy of Sleep Medicine, the American Heart Association, and the Society of Behavioral Sleep Medicine.