The right question is what your gut microbiota can actually do. We read that, then build your formula from it.
Nothing goes into your formula without a reason.
The same gut. The same microbes, read two completely different ways.
A name on a list can’t tell you how your gut works, or what to add. What each microbe does, and which jobs are missing, is what your formula is built from.
Your sample comes back as 200–400 species and their abundances. On its own, a list like that is complete, but unreadable.
So we read every gut the same way, in three passes: we sort it into teams by the job each one does, weigh the ratios between them, and settle the whole picture into one balance score.
The 200–400 species in your sample, sorted into six teams by the job they do and checked against each team’s healthy range.
Team sizes show who is there. These four show whether the fermentation cascade is actually working.
One number for where the ecosystem stands today, across five pillars.
Once we can see what your gut can do, we build one formula for it and nothing else. No two formulas come out the same, because no two readings are. Here is what goes into one, and how every choice gets made.
The live cultures and prebiotic in your formula, dosed to work as one and decided by your reading.
We do not add generic bacteria. We use strains: specific, named, trademarked versions of a bacterium, each with its own published evidence. Which jobs your formula takes on, and which strains fill them, is decided by your reading. Here is the range, and one job worked in full.
Every strain arrives paired with the exact fibre it feeds on. Which fibres, and how much of each, follows how your gut ferments — the same fibre behaves differently in every gut. Generic fibre is a guess. This is matched and measured.
We never start with a formula and look for who it fits. We start with your gut, and let it decide what earns a place.
Dr. Polina NovikovaNB1 Science
Your daily kit often runs to eight or more units: the live-culture and prebiotic blend, plus a stack of softgels, capsules and powders. Every item is chosen from one of your reads: your gut microbiota, your goals, or on Advanced your blood. Nothing is in there by default.
Every item traces back to one of those three reads. That's the rule: nothing goes in without a reason.
Ten minutes to start, then taking it daily. The sequencing, the reading, the building, the measuring: all of it happens in the lab.
Your part
You answer a short intake and send one gut sample. That is the whole ask.
Our part · in the lab
Three weeks of continuous work (sequencing, reading, building, checking) while you do nothing.
Your part · ongoing
Your box arrives, you take it daily, and on Advanced we recalibrate every quarter.
Your part: the intake, the sample, taking it daily. Ours: everything else, and it never stops. On Advanced, it begins again at month three: you retest, we re-read, we show the change.
The science here is young, and reading a gut this deeply sits at its edge. So we built a board to govern it: researchers who design the method, run it, and check it from outside, and hold every formula to what the evidence backs, not what a label would like to claim.
PhD Bioinformatics, University of Luxembourg. Designs and runs the NB1 science pipeline end-to-end.
“The hard part of this work is leaving things out. If your reading doesn’t call for an ingredient, it isn’t in your formula, however good it looks on a label.”
“Anyone can list the bacteria in a sample. The real work is reading what that community is set up to do, because that’s what we build from.”
“An average is comfortable and almost always wrong for the person in front of you. Reading one gut properly is the only way to act on it.”
“A result you can’t reproduce isn’t a result. Every step from sample to formula has to hold up to the same checks, twice.”
Two of Europe’s most senior microbiome scientists review and challenge the method, with no stake in NB1.
Their job is to find where the science reaches further than the evidence allows, and to say so, before any of it reaches your formula.
“My role is to look for where the science is stretched too far. I keep agreeing to stay because, so far, it holds.”
“Plenty of products call themselves personalised. Building from a real reading of the ecosystem is a different thing entirely, and it shows in the formula.”
Your kit ships first. Your formula is produced after your analysis, never before.
Four months is the minimum cycle, the window biology needs to shift. Prefer no commitment? Core runs month-to-month at €109. Prices are shown in EUR; any currency conversion or FX fee is set by your bank.