Most gut supplements are built for the average person. Your microbiome is not average.
No charge until your formula is manufactured
We read your gut. Science-board reviewed. Built from your biology.
If you've tried probiotics, cut out food groups, and still feel off, you're not doing it wrong. Generic gut supplements are formulated for a statistical average. Your microbiome isn't average. It's as unique as your fingerprint.
Often the most direct read on how your gut is fermenting what you feed it.
Your gut governs how much of your food actually reaches you as energy.
The gut and brain are in constant chemical exchange, all day, both ways.
Every person carries a distinct combination of bacterial species. What works as a gut intervention for one person can be inert, or counterproductive, for another. A generic probiotic is a statistical guess applied to a biological individual.
It's the difference between prescription glasses and off-the-shelf readers. Both are lenses. Only one was ground for your eyes.
Symptom stacking is a diagnostic signal. When three or more gut-linked symptoms co-occur, it points to a specific imbalance pattern, not three separate problems to buy three separate products for.
If you've been managing each symptom on its own, that is precisely why nothing has shifted.
Microbiome diversity, gut permeability and bacterial load vary enormously between individuals. Dosing uniformly across that variance is why identical products produce wildly different results.
The same pill, two people, two entirely different outcomes. Not because one of them is doing it wrong, but because the dose was never theirs.
If you don't know what your microbiome actually looks like, you can't know what it needs. Supplementing without a reading is the gut-health equivalent of treating a deficiency without ever running a blood test.
Reading your gut isn't an add-on. It's the rational starting point. We use shotgun metagenomic sequencing, which reads your sample at DNA level to identify the exact species present rather than broad families, and cross-reference it against 8,069 reference metagenomes.
Lasting change doesn't come from a 30-day course of probiotics. It comes from a protocol built around your specific profile, checked against real data, and adjusted as you change. On Advanced we retest and rebuild your formula every cycle.
Four months is the point where change becomes measurable. Not a commitment, a biology timeline. You start on a monthly subscription you can cancel anytime, and by that fourth cycle a retest re-scores the same markers so you can see what actually moved.
So we built NB1.
Not a test you interpret yourself, and not a supplement off a shelf. We read your gut, build one formula from what we find, and post it monthly. Here is exactly how it runs, and you are not charged a penny until the very end of it.
A two-minute gut sample at home, sealed in its bag and posted back in the box it came in.
Your sample is read at species level, meaning we identify the exact bacteria present, then your formula is drafted by our scientists and reviewed by the board.
Only when your formula enters manufacture. Never before.
You're only charged hereActivate, Restore and Nourish, presorted for 30 days and travel-ready. Your first cycle begins.
The same money, spent two very different ways.
Put plainly: most people assembling seven generic supplements are already spending more each month than NB1 Core costs, and none of it is built from their own biology.
“I’d been taking four different things and couldn’t tell you what any of them did. The report was the first time I’d actually seen what was going on. Now I take one thing and I understand why.”
“What sold me was that nobody guessed. They read my gut, showed me the data, and a scientist signed off the formula before it was made. It stopped feeling like buying supplements.”
“I train too hard to leave anything to chance. Everything else in my programme is measured, so it never made sense that my supplements weren’t. This is the first one built off my own numbers.”
No formula, no charge. If your reading doesn't produce a formula we can build, you pay nothing. If it does, you're on a monthly subscription you can cancel anytime, and a retest at the end of a cycle shows you what actually moved.
Your card is authorised when you order, but you're charged only once your formula enters manufacture, around week 3. Nothing before that. If we can't build you a formula, you pay nothing at all.
No. We start by reading your gut, and your formula is made after that analysis, not before it. A probiotic is one component in your protocol, and only if your reading calls for it.
Core reads your gut and builds your personalised formula from it. Advanced adds a blood biomarker panel from cycle two, measurable markers in your blood such as inflammation and nutrient status, and rebuilds your formula every cycle, so it keeps pace as your biology changes. Full comparison is on the order page.
No. Every plan starts as a monthly subscription you can cancel anytime. Four and twelve-month terms exist only because they come at a lower monthly price, and because four months is the minimum window biological change can be measured in, not a contractual lock.
Yes, anytime, on the monthly plan. If you've chosen a discounted longer term you can still change plan or term between cycles.
Honestly: a gut takes time to shift, and we will not promise you a feeling by a date. What we can tell you is what gets measured. Your first reading gives you a baseline across your bacterial profile, diversity and the species linked to fibre fermentation. Four months is the shortest window in which change to those markers can be measured reliably, which is why a retest sits at the end of a cycle rather than after a few weeks. On Advanced, blood markers are read alongside them from cycle two. You see the same measures re-scored, so any change is shown to you rather than described to you.
Three things protect you. If your reading doesn't produce a formula we can build, you are not charged at all. If it does, you are on a monthly subscription you can cancel anytime, so you are never locked into a plan that isn't working. And if you complete a cycle and your retest shows nothing moved, tell us: we will look at why and rebuild against the new reading rather than sell you the same thing again.