Adulterants in drugs can have serious side-effects such as nausea, anxiety , insomnia and in the worst case even death. EZ Test is a quick and easy to use test kit that can tell whether your sample contains levamisole, ephedrine, phenacetine or other adulterants. It is an effective means of adulterants and other potentially harmful substances which are often found in street drugs. The only confirming test for levamisole / phenacetine on the market! By using this easy-to-use, inexpensive test you can be assured that your sample isnt tainted with these crazy adulterants that can have devastating effects on your health and well-being. Uncut, pure cocaine does not react to this test. Any color means impurities! However, it doesnt say how pure your sample is. For this we recommend our test for Cocaine Purity. The reagent itself has a golden yellow color. Detailed instructions and a color chart to compare your results with are included in the box.