The ingredients for our products are sourced from around the world, as many of the plants are not native to North America. All ingredients are then processed, capsulized, and bottled in state-of-the-art GMP compliant facilities in the USA.

While many of the individual ingredients are available from lots of retailers, both online and in-store, you cannot find these products anywhere else. Intestinal Fortitude offers custom blended herbal supplements that were developed after years of research and experimentation. The bacterial strains found in our probiotics were grown specifically for us, to our specifications, and capsulized in ratios that only Intestinal Fortitude offers.

You can start the Pro-B11 with the recommended 1 capsule a day from day one. If you feel like you could use a bit more, then 2 or 3 a day would be fine. The AI-5 and GLR-6 consist of pretty powerful ingredients at optimal dosages. You should start out with 1 capsule per day and work your way up to the recommended serving as your body allows. How quickly you get there is a decision that only you can make.

The most important thing is that you take them! So if there is a time that is most convenient for you, or a time when you are least likely to forget to take them, then that is the optimal time for you. That said, we take the AI-5 in the morning, the GLR-6 just before bed, and the Pro-B11 right after dinner.

No, our Pro-B11 probiotic product was specifically designed and engineered to feature only shelf stable probiotic strains. So not only will they not be effected during shipping, but they won't be damaged when they sit in a box on your porch while you're at work, and they don't have to be refrigerated once you've opened them.

We know that everyone is different, and our products might not work for you as well as they worked for us. But we believe 100% in the quality and effectiveness of the Intestinal Fortitude brand, so we offer a 120 DAY money-back guarantee. We only ask that if you purchased multiple bottles, that you return any unopened product. (Shipping is non-refundable)

Orders placed during business hours will be packaged almost immediately. Orders placed after hours will be packaged first thing the next morning. Depending on volume we make several shipments each day, so you can be sure that your purchase will be on its way to you ASAP!