How to test LSD?

To test LSD always use more than 1 test, because there are more substances than colors. Tests presumptively indicate PRESENCE, but not PURITY or QUANTITY. A positive or negative test result does not mean, that the substance is safe. No substance is 100% safe.


  1. Prepare the smallest sample you can easily see onto a clean surface (e.g. bottom of a mug)
    BLOTTER – You can cut a corner –  blotters are not made with a dropper, the substance is spread evenly
    LIQUID – Pour a drop on unbleached paper and dry before testing
    OTHER – If testing a sugar cube or microdots the test might not be easy to interpret
  2. In good light pour 1 drop of Ehrlich or Hofmann of LSD Test Kit
    OTHER REAGENTS usually charcoal blotter paper before actually reacting (EROWID)
    SUBSTANCE COLOR might slightly distort results
    A BIGGER SAMPLE might react stronger than smaller
  3. If testing LSD the exact color of the reaction is not important – the test is of a yes/no type
    SPEED of the reactions does not indicate much
    FLYERS are available at
    APPS available at for web browsers and Android devices can help interpret results
    RECOMMENDED – record reaction to compare later

Pour baking soda over a finished reaction to neutralize used reagents. Your pipes (and environment) will thank you!

LSD Reagent Test Kit Chart
All reactions to test LSD

 MARQUIS No reaction (tan)
 MECKE No reaction (tan)
 MANDELIN No reaction (tan)
 LIEBERMANN No reaction (tan)
 FROEHDE No reaction (tan)
 EHRLICH Pink > Purple > Blue
 HOFMANN Blue > Dark Blue
 SIMON’S No reaction
 ROBADOPE No reaction
 SCOTT No reaction
 ZIMMERMAN No reaction

A test did (not) react as indicated? Watch out!
25I-NBOMe (responsible for many deaths) and other new synthetic psychedelics do not react with Ehrlich and Hofmann reagents, contrary to LSD and derivatives not known for overdoses or significant toxicity.

If you want to detect an admixture try a TLC Kit or laboratory analysis. Since fentanyls have been seen on blotters if you have the slightest doubt, test for fentanyls presence using Fentanyls SIN Test 

Who can use less? Myth: Test requires a whole LSD piece


LSD can be especially unpredictable in combinations, even with other already known substances. If you intend to use it, start at no more than 1/3 of a dose and avoid mixing.

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