No referral needed

Drug Screening At a Real Lab

Home test kits are unreliable. Corporate testing is expensive and not private. Zuivertest: lab-certified drug screening at 450+ labs in the Netherlands. You choose which substances. Only you see the results.

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Drug Screening Panels Individual Substance Tests
Doctor's Assessment Included
ISO Certified Labs
No Referral Needed
Results in a few business days
Screening Panels

Choose your screening

All analyses are performed at ISO-accredited laboratories. Not with a test strip at home, but with the same equipment hospitals use.

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Don't see what you need? build your own test

Custom Panel

Build your own screening

Choose exactly which substances you want tested. No standard corporate panel, no unnecessary costs. You decide, only you see the result.

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21 biomarkers available
CDT (Carbohydrate-Deficient Transferrin) Cocaine Metabolite Ketamine Amphetamines 3-MMC See all
How It Works

Screening in 4 steps

No referral, no waiting, no questions. Order, test, and receive your results on your dashboard.

01

Choose your substances

Select a standard panel or build your own screening. Your lab referral is generated instantly.

02

Receive your lab referral

Within 2-3 hours you'll receive an email from ZorgDomein with a barcode. Orders outside business hours are processed the next business day.

03

Get tested at a lab near you

Show the barcode on your phone and bring a valid ID. Done in under 15 minutes.

04

View your report

Assessed by a BIG-registered physician. Results typically within a few business days on your secure dashboard.

Your data is protected and never shared with third parties.
450+ locations
12 provinces
Test Locations

Professional test locations across the Netherlands

Certified laboratories for reliable results.

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What You Get

Lab quality, complete privacy

You want to know if your system is clean, without anyone else knowing. That's how Zuivertest works.

Only you see your results

No employer, insurer, or third party has access. Results are behind your secured account.

You choose what gets tested

With corporate testing, your employer picks the panel. With Zuivertest, you choose exactly which substances to screen for.

ISO-accredited lab, not a home test

The same labs hospitals use. Not a test strip with a vague line, but quantified lab values per substance.

Results within a few business days

Assessed by a BIG-registered physician. On your secure dashboard, nowhere else.

Biomarker Library

Understand Your Health Markers

Dive deep into what each biomarker measures, why it matters for your health, and what your results mean.

Drug Screening

Substance detection markers for drug screening panels.

GDPR Compliant
GDPR Compliant
Discreet Testing
Explore All 21 Markers
100% Private & Confidential

Want to know if your system is clean?

Lab results instead of a home test. Completely private. Report within a few business days.

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or build Your Test

GDPR Compliant
Private & Confidential
Never Shared
Common Questions

Frequently Asked Questions

About privacy, the testing process, and what to expect.

No. Your results are behind a secured account that only you can access. No employer, insurer, or third party has access. Want to share them? You download a PDF yourself.
Home test strips give a yes/no answer with a high margin of error. A lab provides quantified values per substance, analysed with the same equipment hospitals use. In borderline cases, that's the difference between a false positive and a reliable result.
Our standard 5-panel screens for CDT, cocaine, ketamine, amphetamines, and 3-MMC. The extended 10-panel adds LSD, GHB, phenibut, 6-MAM, and opiates. You can also build a custom panel with exactly the substances you want.
Typically within a few business days after your lab visit. You get a notification as soon as your report is ready on your secure dashboard.
No. We only release results to you. If you're testing for pre-employment purposes, you can download a PDF and share it at your discretion. Without your active action, no one else gets access.
No. You order directly on our site. We arrange the lab referral for you via ZorgDomein. No appointment needed, no waiting list.
Yes. All analyses are processed at ISO-accredited laboratories. Your report includes lab accreditation and analysis method details. You share it with your employer yourself if you choose to.
We create a lab referral for you via ZorgDomein. Within 2-3 hours you receive an email with a barcode. Orders outside business hours are processed the next business day. You can visit the lab at any time.
Two things: a valid ID and the barcode from your ZorgDomein email (showing it on your phone is fine). The lab staff handles the rest. No BSN? Print the referral form from the ZorgDomein patient portal.
Depends on the location. Some labs accept walk-ins, others require an appointment. You'll see this when choosing your lab location, and we'll provide a booking link if needed.
Yes. Encrypted and stored in EU data centres. Only accessible with your login credentials. Never shared with third parties. Fully GDPR compliant.

Have a question?

Our team is happy to help. Ask your question and we'll respond as soon as possible.

We typically respond within 24 hours
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