BioCeuticals SB Floractiv 500 - 30 CapsulesDescription BioCeuticals SB Floractiv 500 is a vegan formula that contains 10 billion CFU of Saccharomyces cerevisiae (Boulardii) (SB), a probiotic yeast that supports intestinal health and maintains beneficial intestinal flora. SB helps to maintain healthy immune system function and helps reduce the occurrence of symptoms of travellers diarrhoea. SB has also been shown to provide relief of diarrhoea in children. Feature Supports beneficial intestinal