All of our manufacturers are NSF Registered facilities. For a full list of these facilities: Bio Nutraceuticals Inc., Nutribiotech USA, ProTec Laboratory and Vitality Works. All PURE products are manufactured in FDA registered facilities and made in accordance with current FDA good manufacturing practices (CGMPs) published in 21 CFR (code of federal regulations) 111. We also perform our own product testing and we work diligently to provide the highest quality products possible.