The EZ Test Cocaine Cuts tests for some of the most dangerous and commonly used cutting agents in Cocaine, Levamisole, Phenacentine and Ephedrine. All EZ tests use a chemical reagent absorbed in silica gel, which is held inside a glass ampoule. When a sample is added to these chemicals inside the ampoule if a reaction occurs a colour change will take place. This colour should be compared to the colour chart included on the instructions within the package, to give an indication as what could be in the sample. If your unopened ampoule is damaged please contact the retailer it was purchased from.       INSTRUCTIONS   There are 4 quick and easy steps to follow:    (1) Crack open the ampoule.    (2) Insert a small amount of the sample.    (3) Put the plastic lid on and shake well.    (4) Compare the colour change to the chart.  After testing please remember to dispose of the ampoule and sample safely.    The EZ testing kits are purely a guide to help analyse a substance. It is advised not to touch any substance and extensive laboratory testing of samples is recommended for more detailed results.