Test Kits for Heroin / Opioids

Heroin today rarely exists without fentanyl. Testing for both identity (reagents) and contamination (fentanyl strips) is essential. Purity testing kits can estimate potency — critical given the variability of the street supply.

Reagent Kits

Marquis Reagent Test Kit — Detects MDMA, Meth, Speed & Opiates

The #1 drug checking reagent. Identifies MDMA, amphetamine, methamphetamine, and opiates in 30 seconds. Includes color chart card, testing surface, and instructions.

  • 50-70 testing drops per kit
  • Reaction speed: Instantaneous (under 10 seconds)
  • Essential first-line stimulant check
$25.00View Details
Reagent Kits

Mecke Reagent Test Kit

An essential reagent for verifying MDMA and identifying dangerous adulterants like PMA/PMMA.

  • Over 50 individual test drops
  • Fast colorimetric reaction in 15 seconds
  • Indispensable for comprehensive MDMA and opiate screening
$25.00View Details
Safety Strips

Fentanyl Test Strips 10-Pack — Detects Below 200 ng

Fentanyl test strips with a detection limit below 200 ng and over 98% accuracy. Tests powders, pills, and liquids. 10 strips with instructions included.

  • Pack of 10 individually sealed test strips
  • Detects Fentanyl and major chemical analogs
  • Detection limit below 200 ng (vendor-specified)
$5.50View Details
Purity Testing

Heroin Purity Test Kit

Estimate heroin/diacetylmorphine concentration with colorimetric purity assay.

  • Colorimetric purity estimation
  • Takes under 10 minutes
  • Requires only 20mg of material
$12.50View Details
Reagent Kits

Opioid Identification Test Kit

Professional multi-reagent panel to identify heroin, fentanyl, oxycodone and other opioids.

  • 4-reagent professional panel
  • Distinguishes multiple opioid types
  • Identifies heroin vs fentanyl vs pharma opioids
$80.00View Details
Bundle Kits

Elite Drug Test Kit (10-in-1)

The ultimate lab: 9 reagents covering every drug class plus complete accessories kit.

  • Nine premium reagents in one kit
  • Complete coverage of all drug classes
  • Marquis, Mecke, Mandelin, Liebermann, Ehrlich, Hofmann, Folin, Simon's, Morris
$150.00View Details

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CRITICAL HEALTH & SAFETY NOTICE: Testsubstances.com harm reduction test kits are strictly qualitative screening reagents intended solely for analytical identification. Reagent tests do not guarantee absolute purity, and cannot screen for all potential active cutting agents, lethal impurities, or adulterants. No substance consumption is ever 100% safe. Always practice extreme caution and consult qualified medical professionals.

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