If you liked our original Colon Tone supplement, you'll love our Pro-Oxy-Biotic. Like its predecessor, it supplies magnesium hydroxide to gently support healthy elimination. Plus, Pro-Oxy-Biotic goes beyond the original formula to provide a healthy prebiotic arabinogalactan to encourages the proliferation of healthy gastrointestinal bacteria, plus a special probiotic blend of select strains known to colonize in the lower bowel. With 5 billion viable probiotic organisms per capsule at time of manufacture, plus a prebiotic and magnesium hydroxide, Pro-Oxy-Biotic is a powerful yet gentle comprehensive approach to colon health.