Leticia BessThe Management Team
Charles Arnold
Chief Executive Officer
Mr. Arnold’s ability to integrate marketing concepts and financial strategies play a pivotal role in the development of his clients’ businesses. In addition to developing start-up companies, he is responsible for placing more than $1 Billion into public companies with as much as $400 Million in a single transaction. Significant mergers and acquisitions have been accomplished through his network of financial specialists and professionals throughout the world. In 1993 Mr. Arnold was one of the original investors in pre-paid legal “PPD” (now Legal Shield). In 2001 he was engaged by Natural Health Trends “LEXXUS” the company grew from under $1.00 to over $40. Traded on the American stock exchange. Mr. Arnold feels that the direct sales marketing is an underserved market that deserves investors’ attention. Mr. Arnold believes that Stemtech has exceptional growth potential and sees this company’s bright future with our innovative stem cell nutrition products and the financial opportunity for our Independent Business Partners.Over the years, Mr. Arnold has carefully developed worldwide relationships with retail brokerage firms, investment bankers, traders, fund managers, and independent investors. A broad scope of his functions includes public awareness and financial relations campaigns arranged to bring undervalued, little known public companies with significant upside potential to the center of equity markets throughout the world.
For over 35 years, Mr. Arnold traveled extensively serving as a guest speaker for many private and public affairs, including international investment conferences. The investor group’s Mr. Arnold consults have been able to participate in several profitable ventures. Mr. Arnold retired from the lecture circuit 1998. Mr. Arnold was the President and publisher of two financial publications from 1984-1998 (Personal Investing News) a paid circulation of over 500,000 subscribers and (The Sound Money Investor) a geo political Publication with an 80,000 paid circulation. In addition, Mr. Arnold was the host of 4-6 financial conferences a year (Sound Money Investor Conferences). Since 1998 he now concentrates on his primary business, he remains in high demand international as an author and lecturer at seminars on entrepreneurship and business economics and development.
John W. Meyer
President / COO
Mr. Meyer joined Stemtech in 2006 and oversees all global operations. His responsibilities as President and COO include leading all aspects of Stemtech. All functional departments and international operations are his responsibility to drive growth and expansion of the company. Prior to joining Stemtech, John worked for other well-known network marketing companies, such as Shaklee and Arbonne International for over ten years. He also worked for over a decade in third party logistics on global projects for Fortune 100 companies. He brought this experience and more to Stemtech, overseeing operations for the last fifteen years.With 44 years’ business experience, John has been in the network marketing field for 30 years, including his tenure with Stemtech. During his time at Stemtech, he has opened 51 national markets, previously serving as VP of Global Operations and COO prior to his current position. Mr. Meyer earned his BA and MA from the University of San Francisco.
Dr. Lizette Leos
Chief Scientific Officer
Dr. Lizette Leos serves as the Chief Scientific Officer for Stemtech Corporation, bringing over a decade of expertise in regenerative medicine, cellular health, and nutrigenomics to the global leadership team. Since joining the organization in 2017, she has been a driving force behind the scientific validation and educational development of Stemtech’s "stemceuticals™" - all-natural, plant-based, non-GMO supplements designed to support the body’s innate regenerative processes.
Dr. Leos is dedicated to advancing the future of longevity and anti-aging through evidence-driven innovation. Her work focuses on demonstrating how plant-based nutrition can activate the body’s natural capacity for repair and renewal without synthetic or chemical interventions. As CSO, she leads the company’s global scientific governance, ensuring that every product aligns with rigorous regulatory standards and scientific integrity.
Based in Guadalajara, Mexico, Dr. Leos holds a prestigious academic background tailored to the science of cellular health:- Medical Degree: Universidad Guadalajara Lamar (2007).
- Postgraduate Fellowship: Molecular Nutrition and Smart Food Design from Tecnológico de Monterrey (2018).
- Master’s Degree: Aesthetic and Anti-Aging Medicine from the Instituto Mexicano de Medicina Antienvejecimiento y Estética (2023).
Srilakshmi Vadlapatla
Chief Financial Officer
Srilakshmi Vadlapatla is the Chief Financial Officer of Stemtech Corporation, where she leads the company’s global finance, accounting, and compliance functions. She brings over 15 years of experience in U.S. GAAP and IFRS reporting, multinational consolidations, SEC compliance, and strategic financial planning.As CFO, she plays a key role in strengthening financial discipline, optimizing processes, and supporting Stemtech’s international growth. Her proven track record spans financial planning, earnings analysis, external audits, and the development of robust financial policies and internal controls. Earlier in her career, she also provided boutique accounting services, advising diverse clients on risk assessment, Sarbanes-Oxley compliance, and governance best practices.
With a keen eye for detail and a passion for financial excellence, Srilakshmi is committed to transparency, accuracy, and building high-performing teams that drive sustainable long-term value for stakeholders.
Sandra Kazickaite
VP Global Performance
Ms. Kazickaite joined Stemtech in 2007. She is experienced in the necessary skillset of Project Management, having earned her MBA in the field. During her progressive career with Stemtech, Sandra has had management positions in many of Stemtech’s functional departments and brings a wealth of knowledge to her newly created role of leading Stemtech’s Information Technology activities as well as Key Performance Indicator management.Entrepreneurial spirit, keen analytic mind, and comprehensive grasp of the business at a detailed level coupled with wide-ranging professional expertise including business expansion and transformation, organizational change, continuous improvement, customer acquisition and relationship management. Having dedicated more than an action-packed decade to Stemtech, Sandra knows what truly drives the business forward.
Alejandro Carrillo
VP Global Operations
Alejandro Carrillo was appointed Vice President of Global Operations in March 2025. He has been part of Stemtech for more than ten years, initially serving as General Manager of the Mexico market and later as Managing Director of Latin Markets, where his leadership contributed decisively to the region’s growth.With more than 18 years of experience in the network marketing industry, Alejandro has managed projects across multiple markets and stages of the business, always prioritizing innovation, product quality, and exceptional customer service. His career began in the banking sector after earning his MBA, but since 2008 he has pursued his true passion in the multi-level marketing industry, building a career marked by results and strategic vision.
In his current role as VP Global Operations, Alejandro is responsible for overseeing all global operations of Stemtech, working closely with country management teams. His mission is to ensure excellence in Stemtech’s products, drive the company’s sustainable growth, and consolidate its global presence.
Alexandra García
General Manager, Ecuador
Alexandra García is a distinguished leader in sales, administration, training, and leadership development, with over 25 years of experience in the industry. Since April 2015, she has been part of the Stemtech team in Ecuador, responsible for business management and expansion. Her focus is on developing effective sales strategies for the company's growth in the local market.Before joining Stemtech, Alexandra García held strategic positions in renowned companies, where she excelled in developing new directors and training sales teams. Her experience in the sales sector and her ability to lead teams have significantly contributed to the success of the organizations she has worked for.
She holds a degree in Business Administration. Her academic qualifications, combined with her extensive experience in the field, position her as an expert in business management and sales strategy development.
Throughout her career, she has taught numerous courses and workshops in various fields, contributing to the professional development of entrepreneurs in the industry. Her commitment to ongoing training and empowering others is evident in her work.
Her vision is focused on cellular nutrition, business development, and the growth of Ecuador, convinced of the significant potential to transform lives and create business opportunities for entrepreneurs throughout the country.
Magdalena Muñoz
Business Development Manager, Mexico
Magdalena Muñoz Torres has a degree in Business Administration and has built a professional career marked by perseverance, leadership, and a passion for personal and collective growth.She began her career in the banking sector, where over the course of 10 years, she gained experience in finance, customer service, and administrative management. This period allowed her to develop analytical and strategic skills that would later be key in her career.
Later, she discovered in direct sales and networking a space where she could combine her entrepreneurial spirit with her leadership skills. For 15 years, she has built and led high-performance teams, reaching leadership positions such as Divisional Manager, achieving monthly sales exceeding 80 million pesos.
At STEMTECH, a company where she has served as Business Development Manager (BDM) for over 10 years, Magdalena has been instrumental in the organization's growth, consolidating expansion strategies and training leaders.
Her passion for inspiring others led her to organize training and motivational events for over 1,500 people, in addition to becoming a speaker and motivator, conveying messages of self-improvement and focus. Committed to human development, she became certified as a Life Coach using NLP (Neuro-Linguistic Programming), integrating these tools into her personal and professional life. She also ventured into the field of communications as the host and producer of a radio show, where she shares knowledge, experiences, and positive messages.
Throughout her life, Magdalena has demonstrated that success is built with discipline, vision, and passion. Today, her mission is to continue transforming lives, guiding others to discover their potential and achieve extraordinary results in all areas of their lives.
