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THE MOST complete TEST STRIP AVAILABLE 

Accuracy

Delivers reliable results with nearly no false positives for Cocaine, Heroin, MDMA, and Methamphetamine

Availability

Widely available through select retailers and online, fueled by strong demand for retail shelf access

All-Inclusive

All-inclusive kit improves functionality with results in less than 4 minutes

Anonymity

Proprietary tool allows anonymous reporting, enhancing community safety

Ready When You Are

Unlike other fentanyl strips, our kit comes fully equipped with everything you need to test anytime, anywhere. No more scrambling for extra supplies—just complete, convenient testing at your fingertips.

Test Strips You Can Count On

Look for our black and neon yellow test strips—the most sensitive available, ensuring quick, accurate fentanyl detection and unmatched reliability.

defent vs. other test strips

DEFENT Other Test Strips

Detection Range over 150+ Fentanyl Analogs

Least False Positives

Total Test Time <4 Minutes

Compact and Lightweight Portability

Sensitivity 15 ng/mL

All-Inclusive Kit

Anonymous Reporting Tool

DEFENT Strip FAQs

Why should I use DEFENT FTS?

In addition to being the most sensitive FTS available, DEFENT FTS are designed for ease of use. Each package includes all the tools needed for testing: a 5mL measuring cup, a 10mg measuring scoop, and the test strips. By providing these essential items, we aim to promote thorough substance testing and help prevent unintentional overdose poisoning.

How accurate are DEFENT FTS?

DEFENT FTS detect fatal levels of fentanyl at the lowest concentration on the market (15ng/ml). Our highly sensitive strips reduce the occurrence of false negatives, helping to prevent unintentional overdose poisonings.

Do DEFENT FTS detect fentanyl analogs?

DEFENT FTS detect 150 analogs of fentanyl, providing the best coverage of analogs available.

How do I use DEFENT FTS?

1. Crush and shake your substance to mix it thoroughly.

2. Fill the provided measuring cup with 5 mL of water. Use the provided 10mg measuring spoon to add five scoops of your substance to the water, then stir the mixture.

3. Hold the “Defent” labeled end of the fentanyl test strip and dip the water “💦” labeled end into the water. Hold the strip in place for 15 seconds. After 15 seconds, remove the strip from the water and lay it flat for three minutes.

4. Interpret the results. One red line on top indicates a positive test. Two red lines indicate a negative test.

See the full demonstration for using DEFENT Fentanyl Test Strips at the top of the the page.

Where can I buy DEFENT FTS?

DEFENT Fentanyl Test Strips can be purchased directly from our website and DEFENT's Walmart store.

Do you offer bulk purchasing options?

Yes, we offer bulk purchasing options for organizations and institutions. Please contact our team at info@defent.com with your inquiry.

Where are DEFENT FTS manufactured?

We take the quality of our products very seriously. DEFENT Fentanyl Test Strips are manufactured at an ISO 13485-certified facility. This certification represents compliance with FDA standards, although FTS themselves are not regulated, and meets the optimal medical device standards. ISO 13485 is an internationally recognized certification that helps ensure quality and safety standards.

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