How to Use a Fentanyl Test Strip using the "Renegade Method" by Harm Reduction Circle.
You'll need a Fentanyl Test Strip, 1 shot glass of water, & 1/2 a grain of rice of Substance. Add your substance to at least a shot glass of water, remove the test strip, while holding the solid blue end - put the wavy side 1/2 inch into the water & gently stir for 15 seconds, wait 60 seconds, use the key on the back side of the packaging to read results (solid blue side should be on the left).