Does testing waste LSD?

Are you wondering how much LSD for a test you should use? We recommend using the smallest size possible, an only using more in case of doubt.

LSD how much blotter
How much LSD for a test? – Who can use les? Myth: testing wastes a whole LSD tab.

STEP ONE for testing tabs/blotters/LSD

  • Take a (small) corner of your tab.
  • Put it on a suitable testing plate, preferably a spot test plate or the bottom/underside of a ceramic mug (example). *If using single-use vials insert the sample and observe, as the reagent is already within.
  • Add one (or two) drops of an Ehrlich test on the sample and wait for the results.

How much LSD for a test?

Use the smallest possible piece, an only using more in case of doubt.

How to test LSD

How to test LSD: if you intend to use LSD, first you need LSD test kit to check it for adulterants. Pure LSD can be laid on any kind of blotter paper (or other surface) and can’t be identified by appearence. To test LSD use reagent tests Ehrlich, Hofmann, Marquis and Mecke in single-use or multiple-use test kits. Using a set with different reagents helps detect adulterants – 90% will react with 1 out of 3 reagents, and 95% with 1 out of 5.

Reagents 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.

How to test LSD using reagent tests? [BASICS]
How to test LSD using a reagent test kit?

TL;DR: Here is an image with a quick cheat sheet how to use the LSD test kit, or check out more detailed guide on how to test LSD.

LSD Test Kit Flowchart
Instructions how to test LSD

Looking where to buy a test kit for LSD?


A positive reaction does not indicate if the substance is safe. Learn more at