Who We Are

We founded BelleCore, LLC, in 2007 to bring consumers affordable, 
easy-to-use devices that enhance their appearance and well-being.

Each of us has over 25 years of experience in our respective fields: healthcare, fitness and beauty. We’re an uncompromising group, devoted to offering the most effective beauty and wellness devices to our customers.

We’re also our own best testers and demand great results. At BelleCore, we’re committed to producing proven tools that help you look and feel your best.

Our Executive Team

Nancy C. Donahue

An author, actress, fitness instructor, community volunteer and mother, Nancy C. Donahue brings a wealth of complementary skills to BelleCore. Nancy began her career as one of the first international supermodels and has graced the covers of major fashion magazines, including Vogue, Harpers Bazaar and Self. A fitness pioneer, she published a training book, One on One, in the 1980s, and has continued to promote exercise as a crucial component to maintaining optimal health and beauty. An accomplished tri-athlete, Nancy is a NSCA and ACE certified personal trainer, YogaFit RYT teacher, Pilates instructor and fitness director.


Heidi B. Kummer, MD, MPH

Dr. Heidi B. Kummer offers her comprehensive medical acumen, organizational talents and strong social conscience to the BelleCore group. After receiving her M.D./Ph.D. equivalent from Marburg University School of Medicine in Germany, Dr. Kummer completed her residency training and fellowships at Boston University and Harvard Medical School. Following a successful career as a board certified physician in both Anesthesiology and Critical Care Medicine, she chose to pursue a Masters in Public Health, later applying those skills as a not-for-profit consultant in health law and bioethics. Dr. Kummer is a teacher, writer, editor and lecturer; she has held numerous leadership positions in international medical societies. Dr. Kummer is also an avid yoga practitioner.


Susan Anton Pasanen

Susan Anton Pasanen brings her high-energy entrepreneurship and passion for service to BelleCore. At 14, Susan began working at her family’s dry cleaning business – quickly learning what it takes to run a successful organization. After receiving her BA from Tufts and a Masters in Mass Communication from Boston University, Susan embarked on a multifaceted career – building businesses in fashion retailing, beauty e-commerce and catering. She also became the proud mother of three and a philanthropic force in her community, leading many fundraising events and serving on the board of organizations including the Boys & Girls Club of Greater Lowell.


James J. Pomposelli, MD, PhD

Dr. James Pomposelli brings BelleCore his extensive medical and scientific expertise, most notably in the areas of metabolic response and nutrition. He is a graduate of the University of Rhode Island and Boston University School of Medicine; he also completed a fellowship at Harvard Medical School. Dr. Pomposelli honed his skills as a scientist at Boston’s Nutrition/Metabolism Laboratory working alongside renowned weight loss expert and Harvard professor Dr. George L. Blackburn. Dr. Pomposelli’s PhD thesis examined how fish oil’s omega-3 fatty acids could alter the body’s immune response to infection. Dr. Pomposelli has published over 60 peer-reviewed articles and book chapters in the areas of nutrition, metabolism, critical care and liver transplantation, and is frequently invited to speak at nutrition and transplant conferences.