DEFENT ONE is your pocket-sized protector. It spots hidden fentanyl in powders, pills, and liquids using top-tier detection tech. Just scoop, mix, and wait 3 minutes. Boom — results.

Fentanyl is a synthetic opioid that is 50 to 100 times more potent than heroin or morphine. While fentanyl is used medically by anesthesiologists for pain relief, it can also be cut into illicit drugs and counterfeit substances in deadly quantities.

SCOOP a sample. INSERT into the device. SHAKE. PULL. PUSH. In 3 minutes, you’ll know if it’s safe or suspect. No science degree required.

Most counterfeit pills, powders, and street substances.

Faster than you can scroll TikTok — 3 minutes.

Yep. It’s small, sleek, and fits in your pocket, purse, or wherever you stash your essentials. Discreet, portable, and always ready.

Nope. One use, one answer. This keeps every test fresh, clean, and on point. No sketchy re-dips here.

Simple — pop it back into the resealable package it came in and toss it in the trash. No mess, no stress.

Super accurate. It’s sensitive enough to catch as little as 10ng of fentanyl — basically, if it’s there, DEFENT ONE sees it.

If fentanyl is detected, don't panic. Carefully dispose of the device in it's original resealable packaging and discard. Head to DEFENT's Positive Reporting Tool and anonymously report it right away. This will help those in your community be aware that fentanyl was detected in your area.

Right here, right now. Shop online at DEFENT.com and get peace of mind shipped straight to your door. It is also available for sale on amazon.com and select retail locations.

Fentanyl is a synthetic opioid that is 50 to 100 times more potent than heroin or morphine. While fentanyl is used medically by anesthesiologists for pain relief, it can also be cut into illicit drugs and counterfeit substances in deadly quantities.

Any substance that is not obtained from a licensed pharmacy carries the risk of being cut with fentanyl.

The opioid crisis, of which fentanyl is the primary driver, claims over 150 lives daily in the United States. This death toll is comparable to a Boeing 737 Classic crashing every single day.

Always testing your substances for the presence of fentanyl is the best way to empower your decision-making and stay safe. Testing does not guarantee safety; it is a critical harm-reduction technique that can help save lives.

If you believe an overdose is occurring, call 9-1-1 (or your respective emergency medical service) immediately. If naloxone is available, administer the medication as soon as possible.

Fentanyl test strips (FTS) are thin paper strips that are used to detect the qualitative presence of fentanyl in substances.

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.

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.

DEFENT FTS can be used to test pills, powders, and injectable (liquid) substances.

Defent FTS detect 140 analogs of fentanyl, providing the best coverage of analogs available.

1. Crush and shake your substance and 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 FTS here: DEFENT Fentanyl Test Strip

Defent FTS can be purchased directly from our website, our Amazon store by using this insert link.

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

We take the quality of our products very seriously. DEFENT FTS are manufactured at an IS13485-certified facility in Beijing, China. 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.

Orders are processed and shipped within 1-2 business days from the date of purchase. 

Please Note: Orders placed on weekends or holidays will be processed on the next business day.

If you experience any issues with your shipment, such as delays or lost packages, please contact our customer service team at info@defent.com . We will assist you in resolving the matter as quickly as possible.

For the safety and protection of our customers, all sales are final, and we cannot accept returns. This policy ensures that all products are brand new, unused, and hygienically safe.

If you receive a defective product, please contact our customer service team within 72 hours of receiving your order. We will be happy to offer a replacement or a full refund upon approved verification of the defect.