OptimizeChoose your blood test

Blood tests near you.

Without a GP referral you draw at 606 locations in 314 towns, at the same labs your GP works with. Enter your postcode to see the nearest, with its first free slot.

Start today

No referral needed · results in the app within 24 hours

4.8 out of 5 stars from 93 reviews after the blood test

Updated 3 November 2026

In the Netherlands
Draw locations, no referral606
Walk-in, no appointment367 locations
Labs7
Star-shl, Atalmedial, Saltro, SALT, Medlon, SHO and SCAL

A single blood test from €49, or Core for €1 a day.

Start today

A single blood test from €49, or Core for €1 a day.

4.8 out of 5 stars from 93 reviews after the blood test

Updated 3 November 2026

Where can you get a blood test without a referral?

At 606 locations in 314 towns, from health centres to hospital clinics. At 367 you can walk in without an appointment; they are marked "Walk-in".

With a referral from your GP you go to the lab itself. Through Optimize you test without one, on your own initiative.

Blood tests in your city.

43 cities have their own page, with the addresses, the districts and the practical side: how you get there and what you choose. 3 more cities follow soon.

In which towns can you get a blood test?

In 314 towns, from 's-Gravendeel to Zwijndrecht. Tap your town to see its locations on the map, with the distance and the first free slot.

All 314 towns from A to Z

How do you make an appointment for a blood test?

Start your Core membership online

is a yearly blood test with 60 biomarkers for €1 a day, €365 a year in one payment. Checkout takes two minutes. Prefer a one-off? A single blood test starts at €49.
CHOOSE YOUR PATH
Core membership€365 a yearA year of optimising
Single blood testfrom €49A snapshot of your health

Schedule your draw

In the Optimize app you pick one of the 606 draw locations, usually a health centre or hospital clinic near you, and a time slot that suits you. No referral, no waiting list.
APPOINTMENT
Health centre
1.2 KM · NEAR YOU
M14
T15
W16
T17
F18
S19
S20
Tue 15 Sep08:15

Come fasted

Every draw is fasted: nothing to eat or drink from midnight, only water. Appointments are therefore in the morning, until 12:00. The draw itself takes a few minutes.
DRAW DAY
Fasted from midnight
WATER IS FINE
Blood draw
TUE 15 SEP · 08:15 · 3 MIN

Get your results

Within 24 hours your results are in the app, in plain language, with context and priorities.
Health profile
LAST TEST: 9 SEP 2026
52/60biomarkers
Biomarker status
23.9PHENOAGE−4.6 years
Biological age

Atherogenic index (AIP), LDL cholesterol and 5 others deserve attention.

Processed by leading laboratories.

You draw at a location run by Star-shl, Atalmedial, Saltro, SALT, Medlon, SHO or SCAL, the same labs GPs work with.

Atalmedial, a Unilabs company
SHO, a Unilabs company
Unilabs
Clinical Diagnostics Nederland
Medlon, a Unilabs company
Eurofins
Saltro, a Unilabs company
SCAL Medische Diagnostiek
SALT
Star-shl
Coming soon
Reinier Haga MDC
Atalmedial, a Unilabs company
SHO, a Unilabs company
Unilabs
Clinical Diagnostics Nederland
Medlon, a Unilabs company
Eurofins
Saltro, a Unilabs company
SCAL Medische Diagnostiek
SALT
Star-shl
Coming soon
Reinier Haga MDC
Atalmedial, a Unilabs company
SHO, a Unilabs company
Unilabs
Clinical Diagnostics Nederland
Medlon, a Unilabs company
Eurofins
Saltro, a Unilabs company
SCAL Medische Diagnostiek
SALT
Star-shl
Coming soon
Reinier Haga MDC
Frequently asked questions

Questions about a blood test without a referral.

The essentials before you start.

A blood draw comes with a : €1 a day, €365 a year in one payment, for a yearly blood test with 60 biomarkers, at any of the 606 locations. Prefer a one-off? A single blood test starts at €49.

Was this what you were looking for?

Take control.

Membership · most popular

€1/day

Billed annually at €365, in one payment.

  • Annual blood test (60 values)
  • Your biological age
  • Personal action plan
  • Personal AI coach
  • Wearable integration
  • 10% cashback in credits
Start your membership

No referral needed · 606 draw locations · 367 with walk-in

Rather start differently? All blood tests, from €49

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