The Liebermann reagent on its own is colorless. It’s best to use Liebermann reagent to test cocaine, ketamine, or mephedrone, however, it’s also a good test for benzofurans, MDMA and MDA, meth/amphetamine, opioids, tryptamines and phenethylamines.

NOTE: Liebermann can only test the PRESENCE, but not QUANTITY of a specific substance. Always test under a strong light and using the smallest possible sample. Never open more than 1 bottle at once, if you make a mistake you might contaminate the reagents and spoil them. If a few reactions are happening at once, only the darkest one of them will be visible. To detect adulterants, try using on fresh samples secondary reagent tests like RobadopeSimon’s, Scott or Zimmermann. If you don’t know yet how to test using Liebermann reagent, see the following instructions:

  1. On a clean ceramic surface (e.g. bottom of a mug or a plate) prepare a sample no bigger than this size -> ●
  2. Carefully not to touch the sample with the bottle, remove the cap, twist the bottle upside-down and wait for 1 drop to fall. Replace the cap.
  3. Immediately observe the color change and compare it with the Liebermann color chart. No reaction within the first 30 seconds or unexpected results indicate the sample doesn’t contain the expected substance or is adulterated.
  4. Neutralize the reaction with baking soda (optional) and flush in a sink under running water for a few minutes.

No reaction can be caused by MPHP, etizolam, cocaine, caffeine and many other substances (or lack of active ingredient). CHECK TESTDRUGS APP –


Common Liebermann color reactions:

Find the best reagent test kits HERE. Next choose a purity testing kit. They can detect all adulterants at once, but still require reagent tests for identifying ingredients.

CLICK HERE to download Liebermann reagent color chart in full resolution.