This all in one kit from Fenstix includes everything you need to test your substance for fentanyl. Follow the instructions on the back of the card to easily complete your test.
Important Info:
While our test strips are very accurate and highly sensitive, please keep in mind false results are still possible. Please test carefully. If any doubt, it is recommended to test again.
When reading results, there is no meaning to the faintness, intensity, or width of a line. Any visible line is considered a line and should be compared to the results chart.
