Fentanyl:
This fentanyl test is a rapid, visual test for fentanyl. With it, you can determine if your sample contains fentanyl. The detection limit of this test is 200ng/ml. This is the best fentanyl test kit on the market and has an accuracy rate of 99.2%.

Xylazine:
The Rapid Response™ Xylazine Test Strip (Liquid/Powder) is a rapid visual immunoassay for the qualitative, presumptive detection of xylazine in suspicious substances (liquids or powders) at the cut-off concentration of 1000 ng/mL.