---
product_id: 774035810
title: "BTNX Fast Response Fentanyl Test Strip - Recommended by John Hopkins - 5 Test Strips per Pack - World's #1 Fentanyl Strip"
brand: "jlb"
price: "¥37"
currency: JPY
in_stock: false
url: https://www.desertcart.jp/products/774035810-btnx-fast-response-fentanyl-test-strip-recommended-by-john-hopkins
store_origin: JP
region: Japan
---

# 98%+ detection accuracy Detects fentanyl in liquids, powders & pills 5-minute rapid results BTNX Fast Response Fentanyl Test Strip - Recommended by John Hopkins - 5 Test Strips per Pack - World's #1 Fentanyl Strip

**Brand:** jlb
**Price:** ¥37
**Availability:** ❌ Out of Stock

## Summary

> 🛡️ Stay one step ahead with the world’s #1 fentanyl test strip

## Quick Answers

- **What is this?** BTNX Fast Response Fentanyl Test Strip - Recommended by John Hopkins - 5 Test Strips per Pack - World's #1 Fentanyl Strip by jlb
- **How much does it cost?** ¥37 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/774035810-btnx-fast-response-fentanyl-test-strip-recommended-by-john-hopkins)

## Best For

- jlb enthusiasts

## Why This Product

- Trusted jlb brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted by Experts:** Only fentanyl test strip recommended by Johns Hopkins University study
- • **Unmatched Accuracy:** Over 98% accuracy ensures you’re making informed, safer choices
- • **Versatile Detection:** Works on liquids, powders, pills, and even urine samples for comprehensive testing
- • **Compact & Convenient:** Individually packaged strips for discreet, on-the-go harm reduction
- • **Lightning Fast Results:** Get reliable detection in just 5 minutes—no waiting, no guessing

## Overview

BTNX Fast Response Fentanyl Test Strips offer a quick, highly accurate (98%+) method to detect fentanyl and its analogs in various substances. Endorsed by Johns Hopkins University, these individually packaged strips deliver results in just 5 minutes, empowering users with a trusted harm-reduction tool that fits discreetly in any lifestyle.

## Description

Product description               BTNX Rapid Response Fentanyl Test Strips provides the option to check the presence of fennennanals before consumption. The only test strip recommended by the 2018 John Hopkins University Study. Because we found the most accurate and lowest detection limit. This technology was developed in Canada and tested the most comprehensive list of fentanial analog available today. Fentanial testing in substances is a harm-reducing strategy. Fentanyl Test Strips provide an easy and quick way to test all the substances for the presence of many Fentanyl Analog except for sterile water. These Fentanyl test strips are individually packaged for your convenience. Each bundle comes with 5 individual package tests and a copy of instructions. The accuracy of these tests is more than 98%. Visit the manufacturer's website for many videos and documents including the 2018 John Hopkins University Study.                  Safety Warning               本試験では、薬剤の安全性や純度を評価するものではありません。

## Features

- An easy way to detect fentanil and other fentanial analogs in the material
- Johns Hopkins University Study Recommended Test Strips Only
- World's Best Selling Fentanial Strip
- Add 1 ounce of water to the problem substance, insert the strip and leave it in a horizontal position for 5 minutes
- Over 98% Accuracy, Results Time: 5 minutes

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Dimensions | 15.24 x 10.49 x 0.64 cm; 9 g |
| Target Gender | Unisex |
| Included Components | How to use |
| Special Features | It can detect liquids, powders, pills, and fentanals in urine |

## Product Details

- **Brand:** JLB
- **Number of Pieces:** 5
- **Special Feature:** It can detect liquids, powders, pills, and fentanals in urine
- **Model Name:** Rapid Response
- **Specific Uses For Product:** Fentanial Test

## Images

![BTNX Fast Response Fentanyl Test Strip - Recommended by John Hopkins - 5 Test Strips per Pack - World's #1 Fentanyl Strip - Image 1](https://m.media-amazon.com/images/I/71XUuu-ddgL.jpg)
![BTNX Fast Response Fentanyl Test Strip - Recommended by John Hopkins - 5 Test Strips per Pack - World's #1 Fentanyl Strip - Image 2](https://m.media-amazon.com/images/I/71VZrn6XF1L.jpg)
![BTNX Fast Response Fentanyl Test Strip - Recommended by John Hopkins - 5 Test Strips per Pack - World's #1 Fentanyl Strip - Image 3](https://m.media-amazon.com/images/I/81Q-fEt6kqL.jpg)
![BTNX Fast Response Fentanyl Test Strip - Recommended by John Hopkins - 5 Test Strips per Pack - World's #1 Fentanyl Strip - Image 4](https://m.media-amazon.com/images/I/71KoIOZSwhL.jpg)
![BTNX Fast Response Fentanyl Test Strip - Recommended by John Hopkins - 5 Test Strips per Pack - World's #1 Fentanyl Strip - Image 5](https://m.media-amazon.com/images/I/71vqeJqtH-L.jpg)

## Questions & Answers

**Q: What makes the Rapid Response 2.0 different from other fentanyl test strips?**
A: Rapid Response 2.0 features improved strip quality, reduced cross-reaction with cutting agents like diphenhydramine, and includes a micro scoop for easier testing.

**Q: Will this test detect all types of fentanyl and its analogs?**
A: Yes, the test is designed to detect fentanyl and a wide range of its analogs commonly found in contaminated substances.

**Q: Does this test work with powders, pills, or liquids?**
A: Yes. Simply mix a small sample with water as directed, then dip the strip to test. Works with most forms including powders, crushed pills, and liquid solutions.

**Q: How accurate are the results, and how fast do they appear?**
A: The test delivers results in about 5 minutes with over 98% accuracy, making it a reliable tool for quick screening.

**Q: Can I use this test for harm reduction without lab equipment?**
A: Yes. This kit is designed for easy, at-home use and does not require any lab tools or training—just follow the included instructions.

## Frequently Bought Together

- Rapid Response Fentanyl Test Strips 5 Pack – #1 Selling Fentanyl Detection Kit – Harm Reduction Tool – Overdose Prevention – Fast & Accurate Drug Testing Kit
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- Star World Wellness Fentanyl Test Strips Kit with Quick Results, 5 Pack, Testing for Liquid and Powder Substances, Rapid Response for Liquids, Powders and Pills, 10mg Micro Scooper Included

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**Shop now:** [https://www.desertcart.jp/products/774035810-btnx-fast-response-fentanyl-test-strip-recommended-by-john-hopkins](https://www.desertcart.jp/products/774035810-btnx-fast-response-fentanyl-test-strip-recommended-by-john-hopkins)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-22*