When you use Mannatech products, you can be confident that you have made the best choice for your health and wellness. We follow an established quality assurance program and current Good Manufacturing Practices (cGMPs) designed to ensure that proper controls are maintained in the manufacturing, evaluation, packaging, storage and distribution of our products. Quality, safety and integrity are our top priorities in bringing yous products that meet or exceed customer, regulatory and industry standards. This commitment is evident in that all four of our core products and several others are certified by NSF^® International, an independent not-for-profit organization that certifies products in more than 100 countries and is committed to making the world a safer place for consumers.