How to use a reagent test kit: if you intend to use a synthetic psychoactive substance, first you need a test kit to check it for adulterants. Chemicals can’t be identified by appearence. To test use reagent tests like Marquis, Mecke and Froehde 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.More
How to test LSD: if you intend to use LSD (“acid”), first you need an 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. To detect fentanyl or test for fentanyl analogs it’s recommended to use fentanyl test strips.More