Your formula starts with your biology.
4.8 / 5 rated by thousands of happy customers
Struggling with bloating or brain fog? We read your gut, then build your supplement routine around what we find.
nb1 reads your gut first, then builds your daily formula around what your biology needs.
At-home sample · Personalised formula · One month of pre-packed supplements
“Four weeks in and the bloating I had every afternoon is gone. First time I have taken something and known why I am taking it.”
Built by doctors and PhD researchers, not by a marketing team.
Six specialists review the method, the ingredient library and every formula before manufacture.
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Dr. Polina Novikova
Chief Scientific Officer · PhD Bioinformatics, University of Luxembourg
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Dr. Monica S. Matchado
Bioinformatics · Microbiome functional profiling, TU Munich
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Dr. Marijn Lewis
Immunology and gut health · PhD Biomedical Sciences, University of Zurich
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Katia B. Otterstedt
Clinical research and genomics, ECLIN
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Prof. Dr. Dirk Haller
Independent validator · ZIEL Institute Director, TU Munich
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Dr. Koen Venema
Independent validator · Gut microbiology, 254 publications
If you still feel off, it is not because you haven't tried hard enough.
You’ve probably tried probiotics. Changed what you eat. Bought another tub because the label sounded right.
And when nothing clearly changed, you were left with the same symptoms and even less certainty about what to try next.
That is not a motivation problem.
It is a matching problem.
Most supplements are chosen first and fitted to the person later, if at all. nb1 does it in the opposite order.
First, we read your gut.
Then, we build your formula.
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Bloating
Your gut is reacting to something. A generic formula does not tell you what.
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Brain fog
Your gut and brain exchange chemical signals all day. Your supplement should start with your biology, not a trend.
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Digestive discomfort
The same capsule can suit one person and miss the mark for another. Your gut is not an average gut.
Your gut is not a jar of “good” and “bad” bacteria.
It is more like a working city.
Different microbes have different jobs. Some break down what you eat. Some make useful compounds. Some keep other microbes in check.
So the useful question is not:
Which probiotic is everyone buying?
It is:
Which teams are in your gut, what are they doing, and what is missing from the picture?
That is what nb1 reads.
Why this is the right choice
A generic probiotic starts with the capsule and fits the person second. nb1 does it the other way round.
| nb1 Core Built for you | A generic probiotic | |
|---|---|---|
| Your gut is read before anything is made | Yes | No |
| Species-level sequencing of 200–400 species | Yes | No |
| Ingredients selected from a 140+ library to match your results | Yes | No |
| Human scientific sign-off on every formula | Yes | No |
| One pre-packed monthly routine, not a stack of bottles | Yes | No |
| First month paid at order | Yes | No |
| Formula changes as your reading changes | Yes | No |
nb1 is like getting your eyes tested before buying glasses.
You would not buy random glasses and hope they sharpen your vision. You would check your eyes first, then use lenses made for what the test found.
nb1 applies the same logic to your gut.
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01 Step 1
Send a small stool sample from home
It sounds more technical than it is. You collect a small stool sample in the kit, seal it and send it back.
- About five minutes
- No clinic visit
- No blood draw
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02 Step 2
We map what is actually there
The lab analyses your stool sample to map the microbes living in your gut. nb1 uses shotgun sequencing to read them at species level, rather than grouping everything into broad categories.
We look at roughly 200 to 400 species, their abundance, and the jobs they perform. Then we organise the reading into functional teams, ratios and a balance score.
In plain English: we do not just ask which microbes are present. We look at what your gut is doing.
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03 Step 3
Your formula is made after the reading
The scientific team selects the ingredients that match your results from a library of 140+ ingredients.
Every formula receives human sign-off before it enters manufacture.
- No preset based on a quiz
- No identical tub sent to everyone
Your formula is built after your biology has been read.
Order today. We do the work. Your formula arrives after your reading.
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Today: Order Core
Choose your first month of Core and complete the short questionnaire about your goals, health history, diet and lifestyle.
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Day 1: Your kit ships
Your at-home gut sample kit is sent to you. When it arrives, the sample takes about five minutes to collect.
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Weeks 1–2: We read and build
Your sample is analysed at species level. The scientific team reads the results, selects the ingredients and signs off your formula.
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Week 3: Your formula enters manufacture
Your first month is already paid.
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About four weeks after your sample: Your supplements ship
Your first month of pre-packed Activate, Restore and Nourish support ships to you, ready for your daily routine.
Stop spending hours building your supplement stack.
The value is not just what arrives in the box.
It is the work you no longer have to do yourself: researching ingredients, comparing products, working out what fits together and wondering whether you bought the right things.
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Save hours of research
You do not need to become an expert in gut health or spend your evenings working out which ingredients your body needs.
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Remove the decision fatigue
Your stack is built around your reading, so you are not choosing between endless products, dosages and conflicting recommendations.
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Stop paying for the wrong supplements
The formula is selected for your biology, instead of asking you to buy a collection of products that do not fit what your gut needs.
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One delivery. One routine.
Your capsules and prebiotic powder arrive together in one monthly delivery. No separate orders. No chasing different bottles. No building the stack yourself.
Not another shelf full of bottles. One simple monthly routine, built around you.
Your Core protocol arrives pre-packed for the month and ready to take at home or on the move.
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Activate Morning capsules with live cultures and daily cofactors selected for your reading.
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Restore Evening capsules included when your reading calls for recovery support.
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Nourish A precision prebiotic powder matched to the fermentation machinery in your gut.
Your first formula arrives about four weeks after your sample is collected.
You do not need to build a stack, compare labels or remember which bottle does what.
You take the routine built from your own reading.
What people say after their first few months.
4.8 / 5 rated by thousands of happy customers
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“A smarter way to understand your gut health.”
I was really curious about how the process would go. They moved very quickly. I received the kit for the biological sample fast, and it was very easy to send back. The questionnaire I filled out was thorough and detailed, and the AI-generated analysis I got as a result is very well done and highly informative. I can say they’ve made taking supplements much easier for me, since everything is already organized by them into morning and evening doses.
Eugen nb1 customer -
“From sending the probes to receiving all the supplements my body needs.”
Amazing experience! Everything is prompt and they really take care of every aspect of the experience. It really is a helpful, prompt and reliable company i leave my gut health in the hands of with certainty.
Ramona nb1 customer -
“A team that clearly knows what it’s doing.”
Excellent experience with nb1. The process was straightforward and professional throughout, with no friction anywhere. Given how much I travel internationally, recovery and sleep support matter enormously to me, and this was exactly what I was looking for. The results speak for themselves. I feel excellent.
Sirko nb1 customer -
“I filled out questionnaires, then received the kit.”
I have met with nb1 by the recommendation of a friend. The method they offer you for supplements is simple in my view. I have been using the personalised supplements for a weeks and it works as forecasted, already feeling better and my bloating already reduced.
László nb1 customer
Stop guessing. Start with your own biology now.
One at-home sample. One reading of your gut. One formula made around what we find.
4.8 / 5 rated by thousands of happy customers
“Given how much I travel internationally, recovery and sleep support matter enormously to me, and this was exactly what I was looking for. The results speak for themselves. I feel excellent.”
Is this just another probiotic?
No. A standard probiotic starts with the same capsule for everyone. nb1 starts by reading your gut, then selects and builds your formula around what your reading shows.
A probiotic is included only when it fits your protocol.
What exactly does nb1 read?
Your sample is analysed using shotgun sequencing at species-level resolution. We read roughly 200 to 400 species, their abundance and their functions, then organise the results into functional teams, ratios and a balance score.
How long does it take?
Your first formula arrives about four weeks after your sample is collected. That gives the team time to analyse your sample, select your formula and complete the scientific sign-off before manufacture.
When am I charged?
When you order. Your first month is paid at checkout, and later months are charged before each delivery.
Do I need to choose a supplement combination?
No. You start with Core. nb1 selects the formula and the daily routine from your reading.
Can I cancel?
Yes. Core is a monthly subscription and you can cancel anytime.
What if I have already tried several gut supplements?
That is exactly why nb1 starts with a reading. You do not need another generic product added to the pile. You need to see what is happening in your gut, then take a formula built around it.