It is a probiotic that combines two known strains of bacteria: Lactobacillus acidophilus and Bifidobacterium lactis . These strains have been recognized as GRAS (generally recognized as safe) by the FDA in the U.S. Regular use helps to ensure the balance of the natural intestinal flora and thus improves the functioning of the small intestine and colon. This probiotic contributes to better digestive comfort. The original composition of ProbioLog is the result of a unique manufacturing process, which ensures the survival of the bacteria as they pass through the stomach, even when the capsule shell is destroyed by stomach juice.