• PROMOTES DIGESTIVE HEALTH: Featuring probiotic FOS, Swanson's Dr. Stephen Langer formula is specially formulated with diverse strains to promote digestion, gut health, and immune support using ingredients you can trust.
• POWERFUL FORMULA: Our natural digestive supplement features 16 strains of probiotic almost 4x the strains of other popular formulations with 3.5 billion CFUs per capsule, supporting comprehensive probiotic nourishment.
• DOSAGE INSTRUCTIONS: Our wellness supplements offer everyday solutions for an enhanced mind, body, and home using only the purest ingredients. For best results, take one veggie capsule per day with water or juice.
• OUR QUALITY COMMITMENT: For nearly 50 years, Swanson has delivered science-backed health products worldwide. Each wellness supplement is made in our GMP certified facilities, and our purity and potency testing includes independent third-party labs.
• MONEY BACK GUARANTEE: At Swanson, we guarantee that every health product is made from the purest, freshest ingredients. If you aren't satisfied with any product(s) purchased within the last 30 days, return the unused portion to us for a full refund.

A potent probiotic blend, Dr. Stephen Langer’s Ultimate Probiotic with FOS features sixteen strains of probiotics and 3.2 billion CFU per capsule to promote digestive health. That’s four times the number of strains and over twice the CFUs in many popular probiotic formulations, and while other probiotic combination supplements contain only two strains of Bifidobacteria, Dr. Langer’s formula delivers five. This ultimate 16-strain probiotic formula also contains ten strains of Lactobacillus, including Lactobacillus reuteri, which has a unique affinity for promoting colon health and immune system function, along with prebiotic FOS (Fructooligosaccharides) and ConcenTrace trace minerals. FOS are oligosaccharides that deliver a prebiotic effect. Trace minerals are a vital part of the enzymatic process necessary for healthy digestion and are lacking in the diets of many people. Customer Service Phone: 1-866-893-1746