Bacillus subtilis is a breakthrough soil-based, spore-forming probiotic clinically proven to survive where others fail. Unlike fragile strains that degrade during processing or are destroyed by stomach acid, this resilient organism is built to activate exactly where it matters—in the colon, your microbiome’s true command centre. Found in both PureFlow and PureGut, Bacillus subtilis doesn’t just support gut health—it transforms it, optimising nutrient absorption, boosting immune intelligence, and crowding out harmful bacteria with precision and power.