From the Manufacturer's label:
Pre-Biotic with LLife-Oligo® XOS (Xylo-oligosaccharide) is a non-digestible oligosaccharide extracted from corncob through a patented enzymatic process. Due to its clinically-researched prebiotic abilities, LLife-Olige XOS is able to revitalize the gut by increasing the numbers of beneficial bacteria that decline with advancing age, poor diet, and antibiotic use.**
Manufactured by Bio Nutrition
About Puritan’s Pride
For more than 40 years, Puritan's Pride has helped families achieve a lifestyle of wellness. Our vitamins and supplements are made with care from the highest quality ingredients. They are tested or inspected as many as 15 times throughout the manufacturing process. That's why you can shop with confidence. We take pride in our products and helping customers feel their best.