Urinary screening test for spice (K2, synthetic cannabinoids)

Synthetic Cannabinoids K2 (or "Spice") urine test

Urine test for the detection of synthetic cannabinoids type K2, also called Spice.

K2 has been the first generation of synthetic cannabis to appear on the market.



25 ng/ml

1 to 3 days after the last intake

5 minutes

Excellent (≈99%)


Quantity Unit price
From 1 to 2 tests $4.90 per test
From 3 to 9 tests $4.50 per test
From 10 to 19 tests $3.90 per test
From 20 to 30 tests $2.90 per test
More than 30 tests Contact us
In stock
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Total: $4.90


The NarcoCheck® K2 rapid test strip is an immunoassay for fast the detection in human urine of synthetic cannabis of type "K2". This synthetic cannabis is now also known as SPICE.

Synthetic cannabis has nothing to do with natural cannabis. It is actually an active chemical and artificial substance. It is called "cannabis" because it mimics natural cannabis by acting on the same receptors of the organism, namely the CB1 and CB2 receptors.

Its chemical composition is completely different from natural cannabis, and as such, synthetic cannabis must be screened with a test specific to it, just like any other drug.

Whatever the name used, synthetic cannabis, spice, K2, or "herbal incense", these substances are now totally illegal and classified as narcotics.

What is the difference between the K2, K3 and K4 test?

There are 3 types of synthetic cannabis:

  • The K2, or Spice, which appeared in the mid-2000s.
    It is this form of synthetic cannabinoids that this test detects.
    K2 is still widely found in various seizures made around the world. Over time K2 has taken the form of various groups of molecules, such as AM, HU, JWH, CP etc.

  • The K3, a new generation of synthetic cannabinoids, which has been increasingly found on the market since 2014-2015.
    There is a specific NarcoCheck urine test for K3 (AB-Pinaca).

  • The K4 is a third type of synthetic cannabinoids, which has been on the market since 2014-2015.
    There is a specific NarcoCheck urine test for K4 (UR-144).

Cut-off Details

NarcoCheck® - Synthetic Cannabinoids K2 (or "Spice") urine test
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Compound Cut-off (ng/ml)
JWH-018 (pentanoic acid) 25
JWH-018 (4-hydroxybutyl) 300
JWH-073 (4-hydroxypentyl) 300
JWH-073 (butanoic acid) 25
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