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Radost Vassileva
ID#: 5812023


Ray C. Carter, Jr.
Ray C. Carter, Jr.
President and Chief Executive Officer
With more than 20 years of experience in direct sales and marketing, Ray Carter is considered a leader in the field. Read More...
He is known for his ability to create successful corporate systems and implement key business strategies in the consumer products marketplace.

Ray’s extensive experience with private and public companies makes him well versed in all aspects of corporate management with special emphasis on product development, procurement, manufacturing, sales and marketing, corporate administration, information systems and finance. Ray holds a Bachelor of Science degree in Business Administration from the University of Maine and graduated with honors from Southern New Hampshire University with a Master of Business Administration in Management.
Christian Drapeau
Christian Drapeau
Stemtech Chief Science Officer
Research scientist and neurophysiologist Christian Drapeau has more than 15 years of research experience in the fields of natural foods and nutrition. Read More...
Christian has collaborated with several universities and research centers in researching raw botanical ingredients and serves as chief science officer for Stemtech.

Prior to co-founding Stemtech, Christian served as the director of research and development at Cell Tech International and Desert Lake Technologies. He holds a Bachelor of Science in Neurophysiology from McGill University, Montreal, and a Masters from the Department of Neurology and Neurosurgery from the Montreal Neurological Institute at McGill University.
John W. Meyer
John W. Meyer
V.P. - Global Operations
John Meyer has more than 27 years of experience in the direct selling industry, with expertise in the areas of nutrition and personal care products. Read More...
Prior to joining Stemtech, John served as regional operations manager for Shaklee Corporation. Other notable industry experience includes a stint as vice president of logistics for MXM Essential Formulas and the role of vice president of logistics for Arbonne, where he re-engineered logistics operations, planned a new state-of-the-art distribution facility, implemented new software systems and handled all transportation for a company experiencing massive growth. John earned both a bachelor’s and a master’s degree from the University of San Francisco.
Andy Goodwin
Andy Goodwin
Senior V.P. - Global Sales & Marketing
Andy Goodwin has more than 20 years of business experience. He is a native New Zealander and a citizen of the United Kingdom. Read More...
Prior to his role with Stemtech, Andy headed Western and Eastern European operations for Herbalife, Jeunique, Nutri-metrics and Excel Communications.

Other notable experience includes a stint as a board member and owner of a publicly traded direct sales firm in Great Britain, which he helped turn profitable and sold. Andy is an accomplished public speaker and a world class sailor. He is fluent in English and Russian.
Jonathan Lester
Jonathan Lester
Senior V.P.– International Business Development
Jonathan brings more than 15 years of multinational business leadership experience to the Stemtech team. Jonathan’s experience includes running a division Read More...
of a Fortune 500 company, a start up, and several years at a nutritional supplements MLM company. He has worked in a diverse range of industries from private equity, to the automobile and global forest products sectors. Originally a native of Johannesburg, South Africa, Jonathan now lives with his family in Vancouver, British Columbia. Jonathan holds a law degree from University of Johannesburg and an MBA from Bond University (Australia).
Don Karn
Don Karn
V.P. - North American Markets
With an ever-present tenacious spirit and industry acumen, Don Karn joins the Stemtech team with nearly three decades of expertise in network Read More...
marketing and executive sales; best known for both his drive and leadership rapport. A true veteran in the health, wellness and fitness sectors, Don is a firm believer in maintaining strong relationships between corporate and field Distributors.

Prior to joining team Stemtech, Don’s resume extends an impressive career in senior management and lead roles, including eight years with Avon and more than 10 years with Shaklee – among others. His attraction to our company stems from the brand’s commitment to innovations in stem cell nutrition and network marketing.

Don holds an MBA from Lehigh University’s College of Business and Economics in Pennsylvania; and is a contributing writer for Networking Times. Home to South Orange County, Calif., Don and his wife, Miriam, have five grown children.
Errol C. Lester
Errol C. Lester
V.P. - African Markets
Born and raised in South Africa, Errol Lester has more than 20 years of experience in managing successful network marketing enterprises. Read More...
Errol demonstrates expertise as a primary field leader and has established offices for two international companies.

Prior to his current role with Stemtech, Errol held the position of executive vice president for AIM International where he was responsible for overseeing worldwide distributor relations and conducting regional training events. Other notable experience includes a stint as general manager of South African operations for Sportron International. Errol holds a degree in marketing. He has permanent resident status in the United States, where he lives with his wife, a university professor.
Jonathan Lim
Jonathan Lim
V.P. - Asian Markets
Jonathan Lim has vast international experience in assisting with the opening and managing of network marketing companies in countries within the Asia-Pacific region. Read More...
Prior to his current position with Stemtech, Jonathan served as a bank officer. He later left banking to become a sought-after consultant in the Asia-Pacific region for many large companies, including Amway, Tupperware and Hitachi. Other notable experience includes his involvement as an owner and senior executive of several direct selling companies that distribute nutritional products, including Viva LifeSciences and New Health International. Jonathan earned a Masters in Business Administration from the University of California, Los Angeles and is fluent in English, Chinese, Malay and Indonesian.
Heather Livingston, M.Sc.
Heather Livingston, M.Sc.
V.P. - Global Product Training & Sports Marketing
Heather Livingston has more than 20 years of experience in the health, nutritional education and training industries. Read More...
She is recognized as an international expert in the fields of nutrition, sports nutrition and wellness. Heather is a sought-after speaker and a published author of magazines, books and training manuals. Heather has advised elite athletes around the world, including athletes with the Olympics, NBA, FIBA, IHL, PGA, and numerous additional elite professional athletes.

Prior to her role at Stemtech, Heather served as Vice President of international training for Herbalife International and was a key member of the Scientific Advisory Board. Additionally, Heather was the International Nutrition Trainer for the Nutrilite brand of Amway and Program Manager for LIVE FOR LIFE, a wellness program for Johnson & Johnson. Heather holds a Bachelor’s degree from the University of California with an emphasis in sports nutrition, physiology and rehabilitation and a Master's of Science degree with an emphasis on human nutrition, public health and exercise physiology from the University of Michigan.
Paola Mazzoni
Paola Mazzoni
V.P. - Product Training and Development
With experience as a practicing and research pharmacist, as well as a talented speaker and educator in the field of cellular nutrition, Paola brings Read More...
to Stemtech the benefits of more than a dozen years in the sphere of cutting-edge science. Fluent in English and Spanish, Paola has achieved a solid reputation in both Latin America and the United States as a much sought-after presenter of seminars on a wide variety of subjects relating to alternative medicine and product development and quality control, and as a health columnist in well-respected regional publications. Her experience includes research in the development of new products, quality control and statistics, and the practice of complementary therapies including acupuncture, Chinese medicine, hydro-colonic therapy and bio-magnetic pairing.

Recently the owner of a respected Wellness Center in Las Vegas, NV, Paola began working as Product Trainer with Stemtech’s Latin American division in 2009, developing effective field product training programs that helped to spur growth in these markets. She holds a Master of Science degree in pharmacology with undergraduate emphasis in biochemistry, quality control and statistics from Argentina’s University of San Luis, and is currently completing thesis work for an additional post-graduate degree in nutrition through the International Master Program of Spain’s University of Leon.
Ruud Rinkel
Ruud Rinkel
V.P. - Corporate Controller
Ruud Rinkel is a global finance executive with over 15 years of experience. As Corporate Controller, he leads the worldwide finance organization and oversees all Read More...
accounting, treasury, tax, financial planning as well as reporting functions. Prior to joining Stemtech, Ruud held various international finance leadership positions at publicly traded as well as privately held corporations. He spent seven years with PricewaterhouseCoopers in the international audit practice. His last position was as Corporate Controller at Arbonne, a $400MM direct selling company. Ruud is a Dutch registered CPA and holds an MBA. He received a Postgraduate Degree in Accounting as well as a Masters in Economics from the Vrije Universiteit in Amsterdam, the Netherlands.

Ruud serves on the Board of Directors of the DSLA, a school for children to learn the Dutch language in Southern California. He is married and has two children.
George Tashjian
George Tashjian
Director - Global Information Technology
As an information technology expert, George Tashjian has solid experience in managing information systems and interfacing with overseas merchants and vendors. Read More...
Prior to his role as director of information technology with Stemtech, George worked as a programmer and designer for Nexgenix, Inc., a large consulting company based in the U.S., where he worked on large-scale business-to-consumer projects with Southern California Gas and Thirsty.com. Other notable experience includes his time spent as the president of an international online gaming company with a world-wide customer base. George holds a Bachelor of Science in Information and Computer Science from the University of California, Irvine. He is bilingual in English and Armenian.
Brianne M. Rogers
Brianne M. Rogers
Director - Global Business Services
As a former operations manager for a major health and fitness chain, Brianne Rogers boasts solid experience in customer service in the direct sales industry. Read More...
Prior to her current role with Stemtech, Brianne was responsible for overseeing six health clubs in the Greater Los Angeles area. Her district was ranked first in California among over 40 locations. Other notable experience includes her stint as customer service manager for a Los Angeles-based direct selling company that marketed consumer health care products. She also assisted with the creation of an Arizona-based direct selling venture in which she selected vendors and software systems while managing customer service and data entry.
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