• Our most popular probiotic with 3.2 billion CFU from 16 unique strains plus prebiotic FOS
• Diverse formula supports better digestive and colon health than single-strain probiotics
• Offers support for immune system function and a positive mental outlook
• Acid-resistant and no refrigeration necessary

Probiotics have made a big splash in the world of wellness, but why take a probiotic supplement? You’ve heard that probiotics are good for your digestion, but your GI tract is also home to around 70% of your immune system, plus it communicates with your brain to influence cognition and mood. That’s a lot of factors dependent on a healthy gut!

So with all the options on the market, where do you even start? Swanson’s #1 best-selling customer favorite probiotic, Dr. Stephen Langer's Ultimate 16 Strain Probiotic includes more than four times the number of strains compared to many popular probiotic formulations. While other supplements provide only two strains of bifidobacteria, Dr. Langer's formula delivers four. And while some have only one strain of lactobacillus, we feature eleven, including L. reuteri, which was recently added to improve the formula because of the unique protective abilities it offers for colon health and immune system function. Along with S. thermophilus, this variety of probiotic strains encourages a diverse microbiome for better overall digestive health compared to single-strain formulas.

And that's not all. A synbiotic formula, it also includes prebiotic FOS. Fructooligosaccharides (FOS) are naturally occurring plant compounds. They are non-digestible, meaning they arrive in the intestines intact where they function as prebiotics, i.e., ‘food’ for probiotics, and promote intestinal integrity. Additionally, we feature ConcenTrace® trace minerals, which you won't find in just any off-the-shelf product. Prebiotics and trace minerals are absolutely vital to the enzymatic processes necessary for healthy digestion and the maintenance of beneficial bacteria.

Don't be fooled by mass market products that over promise and under deliver—products that also cost more than they should. With this state-of-the-art formula you'll feel the difference in as little as one month. It's the ultimate probiotic at a truly affordable price.

Take a deeper dive on our blog: read about Prebiotics vs. Probiotics vs. Postbiotics or get help Translating the Language of Probiotics.

* Due to supply issues, L. bulgaricus and B. infantis have been replaced by L. paracasei and L. gasseri

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.