Dr. Robert A. Sinnott , Chief Executive Officer and Chief Science Officer, joined Mannatech in 2005 as CSO, and added the responsibilities of Co-CEO in 2009. As of January 2012, he has been named sole CEO.

During his tenure, Dr. Sinnott has served Mannatech to further the company’s proprietary science, research and development, while initiating independent clinical trials that substantiate the company’s flagship Ambrotose product. He also manages the company’s quality assurance/quality control and global regulatory departments. He continues to influence important industry issues, such as regulations, safety and quality of vitamins and dietary supplements. As CEO, Dr. Sinnott works directly with the company’s senior sales and marketing executives and global Associates to be sure they have the products and tools to build their individual businesses and better serve Mannatech customers.

Dr. Sinnott has held scientific positions in both industry and government over the past 20 years with experience in life sciences, chemistry, biotechnology and nutrition. For the past 13 years, he has worked directly in the dietary supplement industry both in the U.S. and internationally.

From 2006 – 2011, Dr. Sinnott held a seat on CRN’s Board of Directors, and from 2009–2011, Dr. Sinnott also served as chairman of the Senior Scientific Advisory Committee (SSAC) for the Council of Responsible Nutrition (CRN), the leading trade association representing ingredient suppliers and manufacturers of dietary supplements and functional foods including vitamins, minerals and botanical products. The SSAC is comprised of the highest-ranking scientific officers of member companies. Its role is to assist the CRN with development and implementation of scientific strategy relating to scientific publications, scientific policies and programs by government agencies.

Dr. Sinnott earned his B.S. degree in Biological Sciences, a Masters in Natural Science, and a Ph.D. in Plant Sciences from Arizona State University, in Tempe, Arizona. His doctoral dissertation focused on agricultural biotechnology of industrial plants, including aloe vera.

“Where wellness is concerned, quality and efficacy are the two most enduring factors in the minds of consumers. We honor this by designing the highest-quality and most innovative products available.”