CLIA-accredited labs · North America & Europe Working alongside your physician
Take the 2‑minute check
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01 · Cellular NAD⁺ Optimisation

Measure the NAD⁺ inside your cells, then restore it with oral precursors matched to your result.

 Explore 02 · Skin SkinIQ

A 30-second scan, a Skin Score out of 100, and products matched to what your skin shows.

 Explore 03 · Nutrition NutriIQ

30 nutrition biomarkers from four drops of blood, so supplements follow your biology.

 Explore
Not sure where to start?

Eight questions show what you measure — and what you're guessing.

Start the check
Health intelligence

What a routine check‑up doesn't measure.

We measure, explain and track what routine check-ups typically miss, working alongside physicians and specialists to support your wellness and healthspan.

Take the 2‑minute check Explore the science

What is NAD⁺? A molecule every cell uses to turn food into energy and to repair itself. Levels can fall by up to 50% by your forties, and a routine blood test doesn't measure them. Learn more →

Cellular energy Intracellular NAD⁺ NAD⁺ Optimisation
30

nutrition biomarkers from four drops of blood

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visible skin signals, read in about 30 seconds

2

continents of CLIA-accredited partner labs

90

days between re-tests, so you can watch your numbers move

Intracellular NAD⁺Omega‑3 IndexActive B12Vitamin DMagnesiumZincSeleniumFerritinCortisolTryptophanGlutamineTaurineSkin textureRednessPoresDark circles
NAD⁺ in 30 seconds

The molecule behind your energy.

Most people have never heard of NAD⁺. It's one of the most important molecules in your body, and one of the few a standard check-up never looks at.

  • 01What it isNAD⁺ (nicotinamide adenine dinucleotide) is a coenzyme found in every cell. Your mitochondria need it to turn food into usable energy.
  • 02Why it mattersCells also use it to repair DNA and manage stress. Levels can fall by up to 50% by your forties.
  • 03Why measure itMost blood tests don't measure it. A finger-prick test shows the level inside your cells, so you act on a number, not a guess.
See the NAD⁺ test The science
The gap

An annual panel looks for disease. We look for drift.

Standard check-ups are built around disease cut-offs. The early signals behind low energy, tired skin or a supplement shelf that isn't working rarely make the panel.
What mattersRoutine check-upBien Etre
Cellular energy Not measured Intracellular NAD⁺, re-tested over time
Omega‑3 status Rarely measured Omega‑3 Index, EPA, DHA and ω‑6 : ω‑3 balance
Vitamins Sometimes vitamin D Active B12, D, A and E
Minerals Sometimes ferritin Magnesium, zinc, copper, selenium and ferritin
Stress hormones Not routinely Cortisol, testosterone and their ratio
Skin A visual look, if anything Seven-signal scan and a Skin Score out of 100
How results are read Against disease cut-offs Against optimal ranges, with next steps
Three lenses

One company. Three ways to see inside.

Each programme measures something specific, explains it in plain language, and re-tests so you can watch it move.
At home

Everything you need, in one box.

Your kit · delivered to your door

2‑minute check · No email required

How much of your health are you actually measuring?

Eight questions. At the end you'll see which parts of your health are measured, which are guesswork, and where to start.

  • 01Eight questionsEnergy, recovery, sleep, skin, diet and what you already test.
  • 02A clear starting pointWe route you to the programme that closes your biggest gap.
How's your energy through an average day?

Be honest. This is the symptom people notice first.

How do you recover after a hard workout or a late night?
How do you usually sleep?
What would you change about your skin?
Which best describes how you eat?
How do you choose your supplements?
Which age bracket are you in?

NAD⁺ levels tend to decline with age.

Which of these have you had measured in the last 12 months?

Select all that apply.

Your coverage

Here's what you measure, and what you're guessing.

0of 6 areas measured

    How it works

    From your door to your data, in four steps.

    No clinic visit, no needle in the vein. Everything is designed to happen at your kitchen table.

    1. 01

      Order your kit

      Everything you need arrives in one box, with instructions you'll understand before you open it.

      Delivered to your door
    2. 02

      Collect at home

      A quick finger-prick fills the card. Seal it in the prepaid envelope. Dried samples need no cold chain.

      Under 5 minutes
    3. 03

      Lab analysis

      Your sample is analysed in an accredited laboratory using validated methods, including mass spectrometry.

      CLIA-accredited · NA & EU
    4. 04

      Results you can read

      Your digital report compares you with optimal ranges, explains what each number means, and gives you next steps to discuss with your physician.

      Optimal ranges, not just cut-offs
    Rigour

    Clinical-grade labs. Every sample, every time.

    Samples are analysed in CLIA-accredited laboratories in North America and Europe, then explained in a plain-language report you can share with your physician.
    01

    Your home

    Collect in minutes, at the kitchen table or the pharmacy counter.

    02

    Prepaid post

    Dried samples travel by ordinary post. No cold chain, no courier.

    03

    Accredited lab

    Analysed in CLIA-accredited laboratories in North America and Europe.

    04

    Your report

    Plain language, optimal ranges and clear next steps.

    05

    Your physician

    Share your results with your doctor or specialist, if you choose.

    CLIA accredited

    Our partner laboratories hold CLIA accreditation, the US federal standard for clinical laboratory testing.

    Two continents

    Partner laboratories in North America and Europe, using validated methods including mass spectrometry.

    Your data, your call

    Your results are yours. We share them only with the people you choose.

    Read about our science →
    Reviewing results with a physician Reviewing results with a physician
    Alongside your physician

    We don't replace your doctor. We give them more to work with.

    Bien Etre fills the gaps between annual check-ups. Every report is written to be read by you and shared with the physicians and specialists who look after you.

    • 01Share in one clickSend your report to your physician, with values and reference ranges in full.
    • 02Re-test, don't guessTrack the same markers over time to see whether a change actually worked.
    • 03Clinician partnersWe work with physicians, dermatologists and specialists, not around them.
    For clinicians Our science
    Shop

    Start with a number.

    All tests & protocols →
    Proof first. Promises second. We measure before we recommend, and we re-test so you can see whether it worked.
    Our working principle
    Questions

    Asked often.

    Is this a medical diagnosis?

    No. Bien Etre services are for wellness and personalisation. We measure and explain. Your physician diagnoses and treats. Every report is designed to be shared with them.

    How does the finger-prick work?

    A small lancet pricks your fingertip and you place a few drops of blood onto a collection card. It takes under five minutes, and the dried card travels back by ordinary post.

    Which labs analyse my sample?

    Samples are analysed in CLIA-accredited partner laboratories in North America and Europe.

    How long do results take?

    NutriIQ results arrive about seven days after the lab receives your sample. Each test page lists its own turnaround.

    Can I share my results with my doctor?

    Yes. Your digital report can be downloaded or shared directly with your physician or specialist.

    Stop guessing. Start measuring.

    Two minutes to see what you're measuring, and what you're not.

    Take the check Shop tests