Since 1998, 4Life Research® has brought you the best quality products available to support your immune system and overall health. We are committed to ongoing innovation and scientific discovery, with products to help you lead a healthy life.*
4Life product formulations are developed through research and a commitment to the utmost quality and efficacy. The Certified 4Life Transfer Factor® guarantee ensures the identity, purity, strength, and composition of every 4Life Transfer Factor product that you consume.
The company’s in-house Research and Development team includes doctors and scientists who keep 4Life on the cutting edge of scientific advancement. Additionally, our Health Sciences Advisory Board (HSAB) assists in the development of new products and helps further research into 4Life Transfer Factor Science.
4Life Transfer Factor Science encompasses the research, technology, and innovation of products that educate your immune cells, supporting your immune system’s ability to recognize, respond to, and remember potential threats. 4Life Transfer Factor products are patented, certified, and highly researched. 4Life Transfer Factor is sourced in three proprietary ways to provide a wide range of personal immune system support:
UltraFactor XF® is a proprietary concentrate of ultra-filtered 4Life Transfer Factor proteins and other peptides from cow colostrum.
OvoFactor® is a patent-protected concentration of 4Life Transfer Factor proteins and other peptides from chicken egg yolk.
NanoFactor® is a proprietary concentration of nano-filtered cow colostrum.
4Life offers numerous delivery methods, including capsules, chewable tablets, juice beverages, powders, and topical products.
Our flagship line of products for immune system support
A product line to help you transform your body and your life
Focused support for different body systems
A strong foundation for your body’s varied health needs
The only complete skincare and body system with 4Life Transfer Factor® to hydrate, nourish, and protect your skin
Products to help you achieve your ideal shape
Many of 4Life products undergo hundreds of analytical tests before being released for distribution. Extensive testing ensures that each specification is evaluated and reported to maintain quality throughout a product’s lifecycle. To certify each 4Life Transfer Factor product, 4Life spent over one million dollars on state-of-the-art laboratory equipment to create one of the most advanced analytical labs in the direct selling industry.
4Life Research establishes product efficacy through collaborations with academic institutions, scientific publications, and exploratory research.
4Life has also partnered with the University of Missouri to conduct a fully-randomized, placebo-controlled, 30-day efficacy study on the effectiveness of Renuvo®.
The 4Life Research and Development team is committed to creating products that offer superior support for overall wellness through continued scientific exploration, while maintaining the highest standards of quality and testing.
Research is in our name and is reinforced through our commitment to innovation, substantiation, and education. The results of this research have appeared in numerous publications and journals, including: Nutrition & Metabolism; Applied Physiology, Nutrition, and Metabolism; Journal of the International Society of Sports Nutrition; and Medicine & Science in Sports & Exercise.
Numerous studies have shown the effectiveness of 4Life Transfer Factor in supporting health.
Our in-house research and development team is comprised of immune science experts and PhD recipients working hard to keep 4Life on the cutting edge. We’ve also enlisted the expertise of dozens of physicians and nutrition experts worldwide, all members of the Health Sciences Advisory Board.
David Vollmer, PhDChief Scientific Officer
Dr. Vollmer has enjoyed 20 years of experience in quality control and analytical laboratory management. His expertise includes technical and administrative leadership, stability testing, validation studies for new products, standard operating procedures (SOPs), production records, and product specifications. He received his PhD in Analytical Chemistry from the University of Nebraska and his Bachelor of Science degree in Chemistry from Missouri Western State University. Throughout his career, Dr. Vollmer has authored more than 20 published articles. He is the co-inventor on 12 patents involving the discovery of pharmaceutical drugs used for treating cancer and inflammation.
Brent Vaughan, PhD, RDVice President of Research and Development
Dr. Vaughan is a registered dietitian with nearly 17 years of experience in formulations and research within the dietary supplement industry. He holds a Master’s degree in Food Science and Nutrition from the University of Utah and a doctorate in Public Health and Epidemiology from Walden University in Minneapolis, Minnesota. Dr. Vaughan has been a Formulator and Researcher at 4Life for the past ten years. During this time, he has been instrumental in the development process for many top-selling 4Life products and has worked with distributors throughout the world.
Shane Lefler, MSSenior Director of Product Development
Shane has been at 4Life for more than five years and has played an integral role in designing and reformulating the company’s products. With a Master’s degree in Nutritional Science from the University of Utah, he has been instrumental in furthering our understanding of 4Life Transfer Factor, including its role in strengthening the immune system. Shane provides continual support to other 4Life departments through his work in research and development. Prior to 4Life, Shane worked as a data analyst at a genetics company that evaluated the hereditary risk factors for breast and colon cancer.
Robert W. Robertson, Jr., MD
Dr. Robertson is the founding member of the Health Sciences Advisory Board and an active 4Life distributor. Following a lucrative career as the Director of Emergency Services at Western Baptist Hospital in Paducah, Kentucky, Dr. Robertson and his son Rob Robertson, III decided to start a nutritional supplement company. It was while conducting product research for their company that the two discovered the many benefits of transfer factors. Convinced of the importance of 4Life’s mission, they sold their company and became distributors. Dr. Robertson completed his education at the University of Louisville School of Medicine and worked as an intern at the University’s affiliated hospitals.
Richard Bennett, PhD
As one of the founding members of the Health Sciences Advisory Board, Dr. Bennett is an active consultant to the 4Life Research and Development team. He holds a Doctorate in Comparative Pathology from the University of California, Davis where he worked for 25 years conducting research focused on the practical aspects of protecting food and water systems from microbes that degrade quality and pose threats to health and safety. Dr. Bennett has also done extensive research on the influence of transfer factors on antibody production and its development in immune modulations. More recently, he authored a book on the effects of inflammation and how it is modified by transfer factors and antioxidants. Dr. Bennett’s research on mammary immunity provided some of the first observations of the unique cellular immune attributes of colostrum, which led to the recognition of colostral transfer factors.
Duane Townsend, MD, FACOG
Dr. Townsend is a board certified OBGYN, specializing in gynecologic oncology. He was a professor at University of California, Los Angeles, University of Southern California, and University of California, Davis. He has introduced several unique ideas to medicine, including cryosurgery, nurse practitioners, and endometrial ablation. Dr. Townsend has authored numerous chapters in medical textbooks and co-authored nearly 100 articles in peer review journals. He still actively practices medicine, blending alternative methods with the conventional approach. He attributes his incredible health to 4Life Transfer Factor.
David Markowitz, MD
After 28 years as a pediatrician, Dr. Markowitz left his 24,000 patient practice to lead a private foundation supporting children with HIV and pursue a 4Life career. He received his medical degree, as well as a pediatric hematology/oncology fellowship, from the University of Connecticut School of Medicine.
Edgar A. Guess, Jr., MD, FACOG
Throughout his career, Dr. Guess has actively participated in pharmaceutical research. His studies soon drew to an intensive study of herbal, natural, and alternative methods of preventative medicine. Dr. Guess attended graduate school at Creighton University in Omaha, Nebraska. Following graduation, he was inducted into the U.S. Army and spent three years stationed at the Walter Reed National Military Medical Center in Washington, D.C. He then attended the Howard University College of Medicine and received his Board Certification from Harvard University. After many years of operating a successful OBGYN practice in Los Angeles, Dr. Guess now serves as a clinical professor at the University of Southern California, Keck School of Medicine where he enjoys consulting with patients and working with students.
Teresa Tomalska, MD
Dr. Tomalska completed her medical training at the Medical Academy of Lublin in Poland. She came to the United States several years ago, intending to only stay for a short visit. Right before leaving, she was introduced to 4Life. Dr. Tomalska decided to stay and devote herself full-time to teaching people about supporting good health. In an effort to further this cause, Dr. Tomalska currently hosts two informative radio shows called “Balsam” and “Toward Health” in Chicago, Illinois, and publishes a monthly newsletter entitled “To Your Health.” She also organizes seminars on topics such as women’s health, cardiovascular health, and health for Polish families.
Said Daibes, PhD
Dr. Daibes graduated from the School of Health Professionals at the University of Missouri with a Radiological and Nuclear Medicine degree. He has served as an Assistant Professor teaching at the undergraduate and graduate level. Dr. Daibes has authored and co-authored over 45 research publications, over 55 scientific abstracts, and one book chapter in applied diagnostic sciences. His research interests include molecular imaging and its applications in early disease detection.
Mei-Ling Siu-Caldera, MD, PhD
Dr. Siu-Caldera is a medical doctor who has done extensive research on the benefits of vitamin D in cancer treatment. She provides nutrition counseling with a focus on weight management, dietary and lifestyle modification, cardiovascular health, diabetes, cancer prevention, sports nutrition, and anti-aging. Dr. Siu-Caldera graduated from the University of San Carlos in Guatemala and received her PhD in Nutrition from the University of Connecticut, Storrs. She has published more than 20 peer-reviewed research papers and contributed articles in newspapers and magazines to increase public awareness on nutrition health.