Master Supplements Inc. specializes in probiotics, digestive enzymes and prebiotics. They utilize acid proof delivery, a unique multi-faceted prebiotic and third party testing on every lot. Theralac, TruFlora, Enzalase, TruFiber and the professional only: TruBifido all raise the standard on digestive health. They're proud of the efficacy of the products and are committed to getting them into the hands of those who need them. As a company they believe in honesty, hard work and most importantly, helping people. Herbspro.com is proud to carry the entire range of this fine brand.