Dr. David Williams' Probiotic Advantage Supplement with 7 Unique Strains and Patented Technology to Deliver Probiotics Alive (30 Caplets), THE STRAINS YOUR GUT NEEDS FOR EVERYDAY DIGESTIVE SUPPORT. Delivers 2 billion live bacteria in 7 extremely hardy strains guaranteed at expiration., SEVEN HARDY, SPECIALLY-SELECTED BIFIDOBACTERIA AND LACTOBACILLUS STRAINS. Patented BIO-tract extended-release delivery system slowly releases the probiotics along both your small and large intestines for all day soothing support. BIO-tract technology is extremely impressive?it won the 2010 North American Frost & Sullivan Award for Technology Innovation., SPECIAL LIVEBAC TECHNOLOGY KEEPS THE BACTERIA ALIVE SO THEY SAFELY GET TO YOUR INTESTINES. LiveBac guarantees the probiotics will be effective up to a year and a half after the product is produced., PREBIOTICS NOURISH AND FEED THE PROBIOTICS. Prebiotics supercharge the probiotics, helping to crowd out the unbeneficial bacteria and support a healthy balance., DEVELOPED BY DR. DAVID WILLIAMS, global medical researcher, biochemist, chiropractor and leading authority on natural health.,