TestKitPlus Kits Explained: Which Kit for Which Drug

One Shop, One Question

TestKitPlus sells a lot of kits, and the range can look overwhelming at first. The question underneath is always the same: which kit do I need for the thing I am testing?

This guide walks the lineup in plain terms, so you can buy the right kit the first time and not pay for reagents you will never use. Everything below links to the TestKitPlus catalog, which ships worldwide.

The Reagents, One Line Each

Marquis is the workhorse. It screens MDMA, meth, speed, and opiates, and flags a wide list of imposters. Start here.

Ehrlich catches indoles. It is the first test for LSD, DMT, and psilocybin, and it rules out NBOMe and other non indole imposters on tabs.

Hofmann is the slow, definitive LSD confirmation. It backs up Ehrlich and separates real LSD from other lysergamides.

Morris is the ketamine test. A deep purple reaction means ketamine or a close analogue, and it rules out MXE, PCP analogues, and other dissociative substitutes.

Froehde splits MDMA from MDA and catches cathinones (bath salts) and synthetic opioids that Marquis can miss.

Simon's tells MDMA from MDA, the secondary amine split that settles the most common pill question.

Mecke is a broad secondary test that helps distinguish opiates and heroin from fentanyl and other synthetics.

Liebermann is a broad cross check used for a second read on many substances.

Mandelin flags ketamine, PMA, and a few amphetamine cuts.

Folin is specialized for piperazines (BZP, TFMPP, mCPP) that get sold as MDMA or speed.

No single reagent confirms anything on its own. They work as a team, which is why the bundles exist.

The Bundles

The [Essential 3-in-1 kit](/kits/starter-3-reagent-kit), $60.00. Marquis, Morris, and Ehrlich. This is the starting point and covers most of what people actually test: MDMA, ketamine, LSD, DMT, and a screen on stimulants. If you buy one thing, buy this.

The [Pro 6-in-1 kit](/kits/six-reagent-kit), $108.00. Everything in the 3-in-1 plus Simon's, Froehde, and Liebermann. This is the kit for people who test pills and powders seriously. It adds the MDMA vs MDA split and the cathinone and opioid cross checks.

The [Elite 10-in-1 kit](/kits/complete-9-reagent-kit), $150.00. The full lab. If you test a wide range of substances or test often, this is the cheapest way to buy all ten reagents.

Which Kit for Which Drug

Whichever kit you buy, add a pack of fentanyl strips. Reagents do not catch fentanyl, and fentanyl is the risk that matters most. A reagent kit plus strips is the minimum complete setup.

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Add the Strips

[Fentanyl strips](/kits/fentanyl-strips), $5.50 for 10. The single most important item in the whole catalog. They detect fentanyl and most analogues below 200 ng.

[Xylazine strips](/kits/xylazine-strips), [nitazene strips](/kits/nitazene-strips), and [medetomidine strips](/kits/medetomidine-strips). For the newer contaminants that regular fentanyl strips miss. If your region has seen xylazine or nitazene warnings, these are worth adding.

The Short Answer

Start with the 3-in-1 Essential kit and a 10-pack of fentanyl strips. That covers the most common situations for about $65. Add the Pro 6-in-1 if you test often or want the MDMA split and opioid cross checks.

The mistake is not buying the wrong kit. The mistake is buying no kit at all.

For the full method behind using these reagents, see our complete guide to reagent test kits.

Disclosure: This article contains affiliate links. We may earn a commission if you purchase through them, at no extra cost to you. Testing reduces risk; it never eliminates it.