Gut-brain support
Xtra-Brain®
$49.99 — or Original price was: $49.99.$44.99Current price is: $44.99. / month
A probiotic formula developed to support the gut-brain connection and everyday wellness.*
- Nine-strain, non-dairy probiotic blend, 52 billion CFU at time of manufacture
- FOS prebiotic fiber included to accompany the probiotic strains
- Caffeine-free capsules; refrigerate after opening
- 30-day money-back guarantee
What's inside
A probiotic blend plus its prebiotic.
Explore why each component was selected, what published research has examined, and the important limitations of that evidence.
Each component has a full public dossier in the Science Hub, including what the research does not show.
52 billion CFU at time of manufacture
Nine-Strain Probiotic Blend
A non-dairy blend of nine probiotic strains. The CFU count reflects the time of manufacture and is not a guarantee of viable counts through expiration. The dossier covers the current limits of probiotic-cognition research.*
Read the Xtra-Brain dossier →Prebiotic fiber
FOS Prebiotic Fiber
Fructooligosaccharides (FOS), a prebiotic fiber included to accompany the probiotic strains in the same capsule.*
Read the Xtra-Brain dossier →*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.
Complete your stack
Complete your routine.
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Six-ingredient daily nootropic for focus, memory, and mental energy support.*
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View productGood questions
Before you add to cart
Follow the directions on the label. Refrigerate the bottle after opening to help keep the product as intended.
The gut-brain connection refers to the communication pathways between the digestive tract and the brain, an area researchers continue to study. We explain it in plain language in our article The Gut-Brain Connection.
The formulas were developed as parts of the same routine. Review every product label before combining them, and ask your doctor or pharmacist first if you take medication or have a medical condition.
Responses to supplements vary from person to person, and published probiotic research does not establish a guaranteed result or timeline for the finished Xtra-Brain formula.
Email support@nutropx.com within 30 days of purchase and we’ll make it right. No complicated process. Full details are in our Return Policy.