University of Arizona, College of Medicine, Ph.D. in Medical Pharmacology.

Specializing in Neuropharmacology.  


University of Arizona, Master’s in Organic Chemistry; 

Minor in Medicinal Chemistry and Toxicology.

Bachelor's in Biochemistry.


Dr. Tim Marshall is a neuropharmacologist and nutritional biochemist with a passion for natural healing.  He completed his doctoral training in Neuropharmacology from the University of Arizona, College of Medicine, and has a Bachelor's in Biochemistry and a Master's degree in Organic Chemistry.  Following graduate school, he entered the realm of drug discovery research as an analytical chemist for Pfizer Global Research and Development in La Jolla, CA and Aventis-Selectide Pharmaceuticals in Oro Valley, AZ.  After a few years in Big Pharma, he returned to academia to teach (2002-2004) and later complete his doctorate in Medical Pharmacology (2008) – specializing in Neuropharmacology, and minoring in Medicinal Chemistry and Toxicology.  


For the past 10 years, Dr. Marshall has taught lecture and lab courses in general chemistry, organic chemistry, biochemistry, and pharmacology, while serving as the Lead Biofuels Chemist for a Department of Defense funded (NASA sponsored) clean-energy research team. Following a three-year stint in clean energy research, he returned to his lifelong passion in nutritional therapeutics and natural medicine – as a holistic neurospecialist – utilizing the tenets of functional medicine to address a wide-range of neurological conditions and disorders. Since 2012, he has been working closely with neurologist, Dr. Carol Henricks (NorthStar Neurology and Hyperbarics) to tailor nutrient protocols that work in tandem and enhance the healing benefits of hyperbaric oxygen therapy (HBOT).  


In addition to teaching, research, and medical consulting – he is a highly sought after expert in the fields of nutritional biochemistry, formulation chemistry and optimization, and environmental toxicology – with recent contracts with Susquehanna International Group (SIG), and the award-winning herbal tea company, Garden to Cup Organics (Canada). Dr. Marshall’s passion for root-cause healing solutions began as a child fueled by his quest to identify the root causes of his own health issues, and passion to understand health challenges at their most basic level has driven him throughout his life. It is the culmination of this passion, education and arduous research that lead to the creation of his next-generation supplements – HempMag, MagLith+, and BrainFood7.






Copyright © 2020 Timothy M. Marshall Ph.D. • 7596 N La Cholla Blvd • Tucson, AZ 85741 • 520-370-6044 •



The statements made on this website have not been evaluated by the Food and Drug Administration. The information published on this site is not intended to diagnose, treat, cure, or prevent any disease. 


The entire contents of this website are based upon the opinions of Dr. Marshall, unless otherwise noted. Individual articles are based upon the opinions of the respective author, who retains copyright as marked. The information on this website is not intended to replace a one-on-one relationship with a qualified health care professional and is not intended as medical advice. It is intended as a sharing of knowledge and information from the research and experience of Dr. Marshall and his community. Dr. Marshall encourages you to make your own health care decisions based upon your research and in partnership with a qualified health care professional.