Membrana
Start

A new, natural way to conquer addiction

Quit smoking. One step at a time.

A scientific approach to quitting smoking, built around your own decision.

Step one: One month without smoking.

No pills. No patches. No nicotine substitutes.

Take the first step See the science behind it

Nothing to install. Chrome on your phone. About five minutes a test.

Your monthDay 12 of 30
Done
4 of 10
Checks left
6
Deposit
€100
What Membrana is

Membrana is a web app for people who have decided to quit smoking or vaping. You put down a deposit of your own money, from €25 to €2,000, and do ten saliva nicotine tests on camera over 30 days. If every test is negative, the full deposit is returned. Membrana is not a medical treatment.

A new, natural way to conquer your addiction.

Membrana uses a scientific approach based on psychological research: a deposit of your own money, real-world tests, and checks on days you can't predict.

  • You make the decision.
  • You take the challenge.
  • You prove you can stay smoke-free.

How Membrana works: Thirty days, step by step.

Each step follows what psychological research shows about quitting.

  1. Before you start

    Set up.

    You choose the amount of your deposit yourself and pay it when you start. You can try Membrana with a deposit as small as €25. When you finish the challenge successfully, you get your deposit back in full at the end.

    The deposit is not a fee and not a price. It is what you put behind your decision to quit. Pass, and all of it comes back.

    You take one photo of your face. It is used to check that it's you in each test.

    Your deposit
    €100
    255010020030050010002000
  2. Step 1

    You start when you're ready.

    After you pay your deposit you have 21 days to get your test kit and do your first check. Your 30 days begin with your first check, on the day you choose.

    Not started after that and one more week: the challenge counts as failed.

    Your month21 days left to start
    Done
    0 of 10
    Checks left
    10
  3. Step 2

    A check is requested.

    The other nine checks come on days you can't predict. You have 24 hours for each.

    Your monthCheck 2 of 10
    Check requested23:42:10left to do today's test.Start the test
  4. Step 3

    Checks add up.

    You see the result of every check. You never know which day the next one comes.

    Your monthDay 16 of 30
    Done
    5 of 10
    Checks left
    5
  5. Step 4

    The last check.

    After your last check, a person reviews your whole month and tells you whether you passed.

    Your monthDay 28 of 30
    Done
    9 of 10
    Checks left
    1
  6. Step 5

    Passed. Deposit returned.

    Pass the review and your deposit is refunded in full, to the card you paid it with.

    PassedDay 30 of 30
    Deposit€100

    Deposit returned in full.

The rules of the challenge: All of them.

30days
10checks, on random days
24hto do each one
~5minutes each
  1. §0Your challenge starts when you pay. From then on you commit to no nicotine in any form until your last check.
  2. §1No nicotine in any form during your challenge: no cigarettes, no vaping, no heated-tobacco sticks, no nicotine patches, gum, lozenges, sprays or pouches.
  3. §2Do all 10 checks: the first when you're ready, the others within 24 hours of being asked.
  4. §3After the last check, a person reviews your month.
  5. §4No missed check, no positive test, no cheating: your deposit is returned in full.

Who Membrana is for: You've already decided to stop.

For people quitting smoking or vaping who don't fully trust themselves to stick to it. Also for social drinkers who want to drop the daily beer or the glass or two of wine. If you plan to quit with nicotine patches, gum or a vape, Membrana is not the right tool: they make the test positive.

Not for heavy drinking or alcohol dependency.

Talk to a doctor first. Membrana is not a medical treatment or a diagnosis. If you use medication or nicotine replacement to quit, ask your doctor before changing anything.

Questions about Membrana: Short answers.

What do I need?

Only one kind of test works: a saliva test with a cassette and a buffer liquid. It usually comes with a small pipette. You first mix your saliva with the buffer liquid, then put the mixture onto the sample well of the cassette. Kits where saliva goes directly onto the cassette, without buffer liquid, are not accepted. Lollipop-style tests held in the mouth are not accepted. Kits where the result is read on the buffer tube itself, with no separate cassette, are not accepted. No other type of kit is accepted. You also need a phone with a camera and Google Chrome. If your kit is new to us it has to be set up first; this can take some time and does not count against you.

For example:
Example of the accepted kit: a buffer tube, a pipette and a saliva cassette with a sample well marked S and a result window marked C and T. Not accepted: saliva directly on the cassette, tests held in the mouth, other test types.Buffer liquid: mix yoursaliva with it firstPipetteCTSCassetteResult windowSample well: the mixture goes hereNot salivadirectly on thecassetteNot held in themouthNo other testtype

When will I be checked?

You choose the day of your first check. The other nine come on random days during the 30 days after it. You find out on the day and then have 24 hours.

What do I have to do to pass?

Do all 10 checks, the first when you're ready and the others within 24 hours of being asked, with a negative result every time. After the last check a person reviews your month.

When do I pay the deposit?

When you start your challenge. You choose the amount yourself, from €25. You do all 10 checks during the month. After the last one, a person reviews your month. With no missed check, no positive test and no cheating, your deposit is returned in full.

Can I cancel?

Yes, before your first check. If you paid for a plan, the plan fee is refunded in full. The deposit is different: it is not a fee and not a price. It is what you put behind your decision to quit, so it comes back only when you pass. Cancelling counts as not passing, so the deposit is not returned.

Will vaping, patches or nicotine gum make the test positive?

Yes. A saliva nicotine test reacts to nicotine from any source, so e-cigarettes, heated-tobacco sticks, patches, gum, lozenges and nicotine pouches can all give a positive result. Membrana is a challenge to be nicotine-free. If you use medication or nicotine replacement to quit, talk to your doctor before changing anything.

Does Membrana work for vaping?

Yes. The test detects nicotine from vaping as well as from cigarettes, so the challenge is the same for both.

Who sees my test videos?

Your recording is checked by the services we use to read the test and the recording, and looked at by a person at Membrana when a review is needed. It is never published or shown to anyone else.

What if I think the result is wrong?

Tell us in the app under Feedback. A person looks at the record of that check before anything about your deposit is final.

Is this a medical treatment?

No. Membrana is not a medical treatment or a diagnosis.

One month. Your first step.

Take the first step