UltraBiotic 60 contains probiotics, including clinically trialled Lab4 strains L. acidophilus (CUL21 + CUL60), B. animalis ssp. lactis (CUL34), B. bifidum (CUL20), that support digestive system health and function, relieve abdominal bloating and help maintain beneficial gut flora including during antibiotic use. Streptococcus thermophilus aids in the digestion of lactose. UltraBiotic 60 contains Lab4 strains that are shown to relieve symptoms of medically diagnosed irritable bowel syndrome.