Stop the guessworkPlans from €99/mo
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Watch a formula get built.

It starts with what your gut can actually do. From that reading, your formula takes shape. Nothing is made before it is complete.

Order your kit
Dr. Polina Novikova Prof. Dr. Dirk Haller Dr. Koen Venema
Every formula reviewed by our 6-person science board · analysed in EU labs
Reading your sample
Step 1 of 3

Your formula example build · 5 of 19 shown

ActivateB. longum
10B CFU
ActivateOmega-3 + antioxidant
500 mg
NourishPrecision prebiotic
2 g
RestoreMagnesium glycinate
200 mg
RestoreVitamin D3
25 µg
+ 14 more, matched to your reading
from 125+ library
Illustrative build. Your formula is drawn from your own gut reading and reviewed before it is made.

Under four weeks, end to end.

One map of the whole thing before the detail. From the kit landing on your doormat to your first delivery arriving, here is every stage and how long it takes.

Day 1–3
Kit arrives
Dispatched within 24 hours, in your hands in 2–3 working days.
Day 3–5
Collect at home
A small stool sample, a few minutes at home. Seal the tube and book a courier to collect from your door.
Day 5–18
Lab analysis
Up to 10 working days of sequencing and reading, on your behalf.
You pay here
Day 18–20
Formula built
Your formula now exists. This is the moment you pay, and nothing is charged before now.
Day 20–24
Delivery
Your first month arrives, presorted into morning and evening packs.
You pay once, only when your formula exists.
That single charge unlocks your full health report, the complete read of your gut, and releases your first delivery. Nothing is charged before this point.
Under 4 weeks, every time.*

*Assumes you schedule collection of your sample within three days of receipt.

It starts with a small sample. A few minutes, at home.

The NB1 stool kit: box, collection tube, instructions leaflet and transport bag

It starts with
a small sample. A few minutes, at home.

A small stool sample. A few tiny amounts into the tube, nothing more. Private, and done in minutes.

Seal it, and a courier collects from your door. Everything you need is in the box, and a replacement kit is free if anything goes wrong.

Your formula, unit by unit.

Your protocol is built in three parts, each a small set of units. Every unit is filled from a library of 125+ studied ingredients, using only the ones your reading calls for, each dosed to your gut. Nothing is a default.

Activate

Morning protocol · taken with your first meal.

The strains chosen to close the gaps your sequencing found. If your Bifidobacteria read low, the matched Bifido strains are placed here.

L. rhamnosus GGL. acidophilus NCFMB. lactis BB-12B. longum 1714B. breve BR03+ 14 more in the library
Which strains, and how many, is decided by your reading

Essential fats and protective nutrients, included when your intake and reading point to them.

Flaxseed Oil (ALA)Evening Primrose OilBorage Oil (GLA)Vitamin EQuercetin
Included, and dosed, to your reading

A polyphenol set drawn from the library to your reading.

Bergamot ExtractPomegranate ExtractApple PolyphenolsGreen Tea ExtractQuercetin
Which polyphenols is decided by your reading

Targeted botanicals and micronutrients matched to the goals set in your intake.

AshwagandhaRhodiolaKorean GinsengVitamin B12Vitamin D3+ more in the library
Selected to your reading and intake
Restore

Evening protocol · taken before bed.

A single, well-absorbed magnesium, taken as part of the evening protocol.

Magnesium (bisglycinate)
Dosed to your reading

Added to the evening protocol only when your reading and intake warrant it, never by default.

ValerianLemon BalmLavenderL-TheanineL-Tryptophan
Included only when your reading warrants it
Nourish

The living layer · any time of day. This is where precision prebiotics live.

Precision prebiotics: the exact fibres your strains can actually ferment, at the dose your reading calls for. The same fibre behaves differently in every gut, so yours is matched to your reading.

InulinPHGGGOSFOSPsyllium HuskOat Beta-Glucan+ more in the library
Which fibres, and how much, is decided by your reading

A daily probiotic in the living layer, taken whenever suits you.

L. plantarum 299vL. paracasei Lpc-37B. lactis B420S. thermophilus UASt-09+ more in the library
Matched to your reading
128components on file
19Live-culture
strains
16Prebiotic
fibres
20Vitamins &
minerals
73Active
compounds
Dr. Polina Novikova Prof. Dr. Dirk Haller Prof. Dr. Koen Venema
Science-board vettedOnly evidence-backed ingredients make the library.

A single reading typically draws on 15 to 25 of these. Which ones you get, and at what dose, comes from what your gut can actually do. The rest of the library stays on the shelf.

Dr. Polina Novikova Prof. Dr. Dirk Haller Prof. Dr. Koen Venema
Dr. Monica S. Matchado Dr. Marijn Lewis Katia B. Otterstedt
Every formula is signed off by our science board before it’s made.
Designed by our CSO and independently reviewed by two of Europe’s most senior microbiome scientists: Prof. Dirk Haller (TU Munich) and Prof. Koen Venema (Wageningen), neither with a stake in NB1.
254published papers
17,000+citations
6on the board

We did the hard part. Your day is two moments, not seven bottles.

A morning pack, an evening pack, and a scoop of prebiotic when it suits.

Everything else is pre-sorted, portable and handled. No juggling bottles, no pill organiser, no planning. What’s left is yours: the commitment to show up.

This was the drawer.
A drawer crammed with mismatched, unlabelled supplement bottles, blister packs and loose capsules
This is the whole thing now.
A tidy windowsill with a glass of water, the NB1 tin, and morning and evening blister cards
Pre-sorted for you

Your whole day arrives sorted into a morning and an evening pack. No pill organiser, nothing to count, nothing to measure.

Travels anywhere

Tear off the days you need and go. Packs slip into a bag or pocket, so a weekend or a full month packs flat in seconds.

Never runs out

Your next month arrives before you finish this one. No reordering, no gaps to plan around, no running out mid-week.

One formula, or a living protocol.

Everyone starts with the same gut reading. From there, Core holds steady and Advanced keeps adapting.

Gut diagnostic
everyone starts here
Core
One formula, built once from your reading, then delivered every month.
Advanced the living protocol
Retested at month three with gut and blood. Your formula evolves and keeps adapting.
Retest: gut + bloodMonth 3
Formula evolvesMonth 5
keeps adapting
Gut diagnostic, everyone starts here
Core

One formula, built once from your reading, then delivered every month.

Advanced the living protocol

Retested at month three with gut and blood. Your formula evolves and keeps adapting.

Month 3Retest: gut + blood
Month 5Formula evolves
OngoingKeeps adapting
Compare Core and Advanced in full

Stop guessing. Start with your biology.

Your kit ships first. Your formula is produced after your analysis never before.

Core
€99 /mo
or €109/mo, monthly · cancel anytime
Gut reading and the formula built from it.
Order Core kit → Recommended
Advanced
€149 /mo
Gut and blood. Rebuilt every cycle from your data.
Order Advanced kit →

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 your selected currency; any conversion or FX fee is set by your bank.

Analysis includedCharged only on productionCancel after your first cycleReviewed by our science board