THC / CBD QTEST

Rated 4.86 out of 5 based on 7 customer ratings
(7 customer reviews)

16,95 

Potency Test Kit for Cannabis Flower, Extracts & Oils
  • measure concentrations in 15 min
  • measure both cannabinoids (THC & CBD)
  • 0.02 g needed
  • evaluation by eye
  • for accurate weighting, use a milligram scale (available separately)

  Delivery time 2-3 days

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K2/ Spice Test
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Guaranteed Safe Checkout

Description

THC / CBD QTest Front Label
THC/CBD QTest Kit: Easy Way to Measure Cannabis Potency Whether you’re a casual cannabis consumer, medical user, or a grower looking to ensure the quality of your harvest, this weed tester kit empowers you to make informed decisions about your cannabis use. Watch the tutorial video
THC / CBD QTest with Materials
Piktogramm Auswertung Provides accurate potency measurements
Piktogramm Cannabis Plant Requires minimal sample and simple steps
Icon Apply Weiß Developed and validated at a university
Icon Precise Weiß The first and only potency test on the market
Icon Fast Weiß Delivers results in minutes
Warning for synthetic cannabinoids
Offical Warning and confirmation of synthetic cannabinoids! An official warning was issued by the NEWS project, alerting the public about the dangers of synthetic cannabinoids in cannabis. The THC/CBD QTest played a crucial role in early detection, reducing harm and potentially saving lives.
steps to measure
Simple 3-Step Process to Measure Cannabis Potency The THC/CBD QTest makes testing simple and reliable. With its easy 3-step process, you can accurately measure the THC and CBD levels in your cannabis in just minutes.
EASY TO READ RESULTS
EASY TO READ RESULTS Developed for Home Use: Get accurate cannabis testing in the comfort of your own home—no lab required. Compare your own strains!
Miguel
This is a great test!! Thanks to it I discovered I was smoking synthetic cannabis, with no THC. I have changed my supplier and now is 15%. Thank you guys for doing this!
DEVELOPELD AND VALIDATED AT LEADING GERMAN UNIVERSITY The QTests were developed with state funding at the University of Jena. They have been validated using reference standards at the university level and calibrated through precise instrumental analysis.
lab-founders
OFFICAL DRUG CHECKING TOOL The QTests have been used in German state-organized programs since 2021 to analyze magic mushroom content and are verified by the German state before approval for drug checking.
drug checking

Instruction Manual

For a quick overview of how to perform the test, please refer to the quick guide (see slider above).

Note: When determining the THC content (step 3), first transfer 10 drops from the dropper bottle into the small glass vial. Only then add 5 drops from the developer blister pack to the vial.

Here you’ll find the most up-to-date version of the detailed instructions. A printed copy is always included with your test kit. The instructions are also available in multiple languages: 

FAQ

Is shipping discreet?

Yes. Your order is shipped in neutral, unbranded packaging with no indication of the contents. This ensures full privacy.  For more information, please see our shipping details.

 

How long does shipping take?

Delivery times depend on your location. Orders are dispatched on Mondays to ensure safe transport of the reagents.

  • Germany & EU: typically 2–4 working days
  • International: may vary depending on customs

 

Do I need anything else to perform the test?

Everything you need is included in the box. To prepare your sample, you will also need a few common household items:

  • A grinder or scissors to finely grind the sample
  • A milligram scale to weigh 20 mg
  • A small funnel, weighing dish or a folded piece of paper to transfer the sample into the vial

 

What sample types can be tested? Can I test oils?

This kit can be used with both solid and liquid cannabis products. It is suitable for: 

  • Dried plant material (e.g. cannabis flower)
  • Concentrates and extracts (e.g. hash, wax)
  • Oils and tinctures (including e-liquids)

*For extracts and liquids, the sample amount must be adjusted, as they are usually more concentrated than plant material. Please see the FAQ below or refer to the manual for detailed instructions.

The test is designed for 20 mg of cannabis flower. This is the standard amount used for the colour chart.

Dried plant material

Use 20 mg (0.02 g) of dried flower.

For the most reliable result, grind and mix a larger amount first. Then take 20 mg from this mixture, rather than testing only one small piece of flower.

Extracts and concentrates

Extracts such as hash, wax, rosin, or distillate are usually much stronger than flower. Therefore, you should use less material:

  • Use 10 mg for medium-strength extracts.
  • Use 5 mg for highly concentrated extracts.

Because you are using less than the standard 20 mg, the number you read from the colour chart will be lower than the actual potency. After the test, you will need to correct this result. The next FAQ explains exactly how.

Liquids and oils
  • Use 1 drop for strong products, such as high-potency vape liquids or oils.
  • Use 2–3 drops for lower-strength products.

Drops do not always have the same weight, so you will need to weigh the liquid used before calculating the final result. The next FAQ explains this step-by-step.

How do I evaluate results from extracts and concentrates?

The colour chart is calibrated for 20 mg of sample. Because extracts are usually much stronger than cannabis flower, you may use a smaller amount for the test.

When you use less than 20 mg, the colour reaction will appear lighter. This means that the value shown on the colour chart is not yet the final potency of your extract.

To calculate the final result:

  • If you used 10 mg of extract, multiply the value shown on the colour chart by 2.
    Example: If the colour chart shows 25% THC, your extract contains approximately 50% THC.

  • If you used 5 mg of extract, multiply the value shown on the colour chart by 4.
    Example: If the colour chart shows 20% THC, your extract contains approximately 80% THC.

Are there any special steps for liquids or oils?

Yes. You can test oils, tinctures, and vape liquids with the THC/CBD QTest. However, because drops can vary in size, you need to check the weight of the liquid you use before calculating your final result.

1. Choose how many drops to use
  • Use 1 drop for highly concentrated liquids, such as strong vape products.
  • Use 2–3 drops for lower-concentration liquids.
2. Measure the weight of your drops
  1. Put the bottle or vial containing your liquid on a precision scale and note the weight.
  2. Remove the drops you want to use for the test.
  3. Add these drops to the test vial.
  4. Put the liquid bottle or vial on the scale again.
  5. Subtract the second weight from the first weight.

The difference is the total weight of liquid used for your test. Alternatively, you can measure the weight of multiple drops and divide the total by the number of drops to calculate the weight of a single drop.

Example:
Before taking the drops: 12.540 g
After taking the drops: 12.490 g

12.540 g − 12.490 g = 0.050 g

This means you used 50 mg of liquid.

3. Calculate your final result

The colour chart is calibrated for 20 mg of sample.

Use this calculation:

Final THC/CBD result = colour chart result × 20 ÷ weight of liquid used (mg)

Example:
You used 50 mg of liquid and the colour chart shows 20% THC:

20 × 20 ÷ 50 = 8% THC

Your liquid therefore contains approximately 8% THC.

If your sample weighs exactly 20 mg, you can read the result directly from the colour chart without any calculation.

Does this test detect synthetic cannabis? Can I tell if my weed is fake?

No, this test does not detect synthetic cannabinoids. It’s designed to measure THC/CBD levels only. To screen for synthetic or “fake” cannabis (like Spice or K2), consider pairing the QTest with our  K2/Spice Test Kit.  

But our test can give you an indirect indication. If the THC vial gives a negative result — meaning there is no colour change or intense red colour discoloration — and you have already smoked the product and felt noticeable effects, this may suggest that the sample contains another psychoactive substance rather than THC.

If you’re unsure what synthetic cannabinoids are, learn more on our blog: New Synthetic Cannabinoids: Hidden Risks, False Safety & How to Detect Them →

.

Can I use the test for other substances?

No, the THC/CBD QTest is specifically designed for cannabis (flower material) and is calibrated to measure THC and CBD content only.

 

What does a “quantitative test” mean?

Unlike classic reagent tests, which only indicate whether a substance is present, the QTest measures how much is present. The THC/CBD QTest provides a quantitative result, showing the concentration of THC and CBD in your sample.

How accurate is the QTest?

The QTest is designed to provide reliable, lab-like estimates of THC and CBD content when used correctly. Following the instructions carefully, especially accurate weighing and proper mixing, will help ensure the most precise results.

 

How should I store the test and what is its shelf life?

Store the reagents at room temperature, ideally between 2–20°C, away from direct sunlight. For maximum shelf life of at least 18 months, refrigeration is recommended when possible.

 

Where can I learn more about substances and safe use?

For up-to-date information on different substances, harm reduction, safer use practices, and drug checking, check out our blog. We regularly publish guides, testing advice, and educational resources to help you stay informed.

 

Haven’t found the answer you’re looking for?

Click here to find more FAQs or contact us via info@miraculix-lab.de

Disclaimer

This test is not suitable for the identification of the substance itself, but rather for detecting the content of the active substance content.

IMPORTANT:

Testing a sample with our test kits should not be considered a guarantee of safety. Essential risks are associated with the consumption of any substance. Various factors can influence testing outcomes and reactions. Miraculix does not take responsibility for the interpretation of test results. Sample responses can differ due to lighting variations and specific substance blends being tested. The use or misuse of this information is not the responsibility of miraculix.

Additional information

Weight 0,13 kg
Dimensions 5,7 × 3,9 × 1,9 cm
Applications

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Product safety

Product safety

Product safety documents

Safety instructions

Manufacturer: LeadiX GmbH

DANGER - 2,6 ml per application / GEFAHR - 2,6 ml pro Anwendung / PELIGRO - 2,6 ml por aplicación / GEVAAR - 2,6 ml per toepassing / DANGER - 2,6 ml par application / PERICOLO - 2,6 ml per applicazione / NIEBEZPIECZEŃSTWO - 2,6 ml na aplikację / NEBEZPEČÍ - 2,6 ml na aplikaci / PERIGO - 2,6 ml por aplicação

 

EN: H290: May be corrosive to metals. H314: Causes severe skin burns and eye damage. H225: Highly flammable liquid and vapour. H336: May cause drowsiness or dizziness. H302: Harmful if swallowed. P102: Keep out of reach of children. P280: Wear protective gloves/ protective clothing/ eye protection/ face protection. P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P301 + P330 + P331: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P303 + P361 + P353: IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Contains: Isopropanol (>90 %) EG-Nr. 200-661-7 & Sulphuric acid (15%) EG-Nr. 231-639-5

DE: H290: Kann gegenüber Metallen korrosiv sein. H314: Verursacht schwere Verätzungen der Haut und schwere Augenschäden. H225: Flüssigkeit und Dampf leicht entzündbar. H336 Kann Schläfrigkeit und Benommenheit verursachen. P102: Darf nicht in die Hände von Kindern gelangen. P280: Schutzhandschuhe/Schutzkleidung/Augenschutz/Gesichtsschutz tragen. P210: Von Hitze, heißen Oberflächen, Funken, offenen Flammen und anderen Zündquellen fernhalten. Nicht rauchen.P301 + P330 + P331: BEI VERSCHLUCKEN: Mund ausspülen. KEIN Erbrechen herbeiführen. P303 + P361 + P353: BEI KONTAKT MIT DER HAUT (oder dem Haar): Alle beschmutzten, getränkten Kleidungsstücke sofort ausziehen. Haut mit Wasser abwaschen/duschen. P305 + P351 + P338: BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Vorhandene Kontaktlinsen nach Möglichkeit entfernen. Weiter spülen. Enthält: Isopropanol (>90 %) EG-Nr. 200-661-7 & Schwefelsäure (15 %) EG-Nr. 231-639-5

ES:H290: Puede ser corrosivo para los metales. H314: Provoca quemaduras graves en la piel y lesiones oculares graves. H225: Líquido y vapores muy inflamables. H336 Puede provocar somnolencia o vértigo. P102: Mantener fuera del alcance de los niños. P280: Llevar guantes/prendas/gafas/máscara de protección. P210: Mantener alejado del calor, superficies calientes, chispas llamas al descubierto y otras fuentes de ignición. No fumar. P301 + P330 + P331: EN CASO DE INGESTIÓN: Enjuagarse la boca. NO provocar el vómito. P303 + P361 + P353: EN CASO DE CONTACTO CON LA PIEL (o el pelo): Quitarse inmediatamente las prendas contaminadas. Aclararse la piel con agua o ducharse. P305 + P351 + P338: EN CASO DE CONTACTO CON LOS OJOS: Aclarar cuidadosamente con agua durante varios minutos. Quitar las lentes de contacto, si lleva y resulta fácil. Seguir aclarando. Contiene: Isopropanol (>90 %) EG-Nr. 200-661-7 & Ácido sulfúrico (15%) EG-Nr. 231-639-5

NL: H290: Kan bijtend zijn voor metalen. H314: Veroorzaakt ernstige brandwonden en oogletsel. H225: Licht ontvlambare vloeistof en damp. H336 Kan slaperigheid of duizeligheid veroorzaken.P102:  Buiten het bereik van kinderen houden. P280: Beschermende handschoenen/beschermende kleding/oogbescherming/gelaatsbescherming dragen. P210: Verwijderd houden van warmte, hete oppervlakken, vonken, open vuur en andere ontstekingsbronnen. Niet roken. P301 + P330 + P331: NA INSLIKKEN: de mond spoelen — GEEN braken opwekken. P303 + P361 + P353: BIJ CONTACT MET DE HUID (of het haar): verontreinigde kleding onmiddellijk uittrekken — huid met water afspoelen/afdouchen. P305 + P351 + P338: BIJ CONTACT MET DE OGEN: voorzichtig afspoelen met water gedurende een aantal minuten; contactlenzen verwijderen, indien mogelijk; blijven spoelen. Bevat: Isopropanol (>90 %) EG-Nr. 200-661-7 & Zwavelzuur (15%) EG-Nr. 231-639-5

FR: H290: Peut être corrosif pour les métaux.H314: Provoque des brûlures de la peau et des lésions oculaires graves. H225: Liquide et vapeurs très inflammables. H336 Peut provoquer somnolence ou vertiges.P102: Tenir hors de portée des enfants. P280: Porter des gantde protection/des vêtements de protection/un équipement de protection des yeux/du visage. P210: Tenir à l'écart de la chaleur, des surfaces chaudes, des étincelles, des flammes nues et de toute autre source d'ignition. Ne pas fumer. P301 + P330 + P331: EN CAS D’INGESTION: rincer la bouche. NE PAS faire vomir. P303 + P361 + P353: EN CAS DE CONTACT AVEC LA PEAU (ou les cheveux): enlever immédiatement les vêtements contaminés. Rincer la peau à l’eau/se doucher. P305 + P351 + P338: EN CAS DE CONTACT AVEC LES YEUX: rincer avec précaution à l’eau pendant plusieurs minutes. Enlever les lentilles de contact si la victime en porte et si elles peuvent être facilement enlevées. Continuer à rincer. Contient: Isopropanol (>90 %) EG-Nr. 200-661-7 & Acide sulfurique (15 %) EG-Nr. 231-639-5

IT: H290: Può essere corrosivo per i metalli. H314: Provoca gravi ustioni cutanee e gravi lesioni oculari. H225: Liquido e vapori facilmente infiammabili. H336 Può provocare sonnolenza o vertigini. P102: Tenere fuori dalla portata dei bambini. P280: Indossare guanti/indumenti protettivi/Proteggere gli occhi/il viso. P210: Tenere lontano da fonti di calore, superfici calde, scintille, fiamme libere o altre fonti di accensione. Non fumare. P301 + P330 + P331: IN CASO DI INGESTIONE: sciacquare la bocca. NON provocare il vomito. P303 + P361 + P353:IN CASO DI CONTATTO CON LA PELLE (o con i capelli): togliersi di dosso immediatamente tutti gli indumenti contaminati. Sciacquare la pelle/fare una doccia. P305 + P351 + P338: IN CASO DI CONTATTO CON GLI OCCHI: sciacquare accuratamente per parecchi minuti. Togliere le eventuali lenti a contatto se è agevole farlo. Continuare a sciacquare. Contiene: Isopropanol (>90 %) EG-Nr. 200-661-7 & Acido solforico (15%) EG-Nr. 231-639-5

PL: H290: Może powodować korozję metali. H314: Powoduje poważne oparzenia skóry oraz uszkodzenia oczu. H225: Wysoce łatwopalna ciecz i pary. H336 Może wywoływać uczucie senności lub zawroty głowy. P102: Chronić przed dziećmi. P280: Stosować rękawice ochronne/odzież ochronną/ochronę oczu/ochronę twarzy. P301 + P330 + P331: W PRZYPADKU POŁKNIĘCIA: wypłukać usta. NIE wywoływać wymiotów. P303 + P361 + P353: W PRZYPADKU KONTATKU ZE SKÓRĄ (lub z włosami): Natychmiast usunąć/zdjąć całą zanieczyszczoną odzież. Spłukać skórę pod strumieniem wody/prysznicem. P305 + P351 + P338: W PRZYPADKU DOSTANIA SIĘ DO OCZU: Ostrożnie płukać wodą przez kilka minut. Wyjąć soczewki kontaktowe, jeżeli są i można je łatwo usunąć. Nadal płukać. Zawiera: Izopropanol (>90 %) EG-Nr. 200-661-7 & Kwas siarkowy (15%) EG-Nr. 231-639-5

CS: H290: Může být korozivní pro kovy. H314: Způsobuje těžké poleptání kůže a poškození očí. H225: Vysoce hořlavá kapalina a páry. H336 Může způsobit ospalost nebo závratě P102: Uchovávejte mimo dosah dětí. P280: Používejte ochranné rukavice/ochranný oděv/ochranné brýle/obličejový štít. P210: Chraňte před teplem, horkými povrchy, jiskrami, otevřeným ohněm a jinými zdroji zapálení. Zákaz kouření. P301 + P330 + P331: PŘI POŽITÍ: Vypláchněte ústa. NEVYVOLÁVEJTE zvracení. P303 + P361 + P353: PŘI STYKU S KŮŽÍ (nebo s vlasy): Veškeré kontaminované části oděvu okamžitě svlékněte. Opláchněte kůži vodou/osprchujte. P305 + P351 + P338: PŘI ZASAŽENÍ OČÍ: Několik minut opatrně vyplachujte vodou. Vyjměte kontaktní čočky, jsou-li nasazeny a pokud je lze vyjmout snadno. Pokračujte ve vyplachování. Obsahuje: Isopropanol (>90 %) EG-Nr. 200-661-7 & Kyselina sírová (15 %) EG-Nr. 231-639-5

PT: H290: Pode ser corrosivo para os metais. H314: Provoca queimaduras na pele e lesões oculares graves. H225: Líquido e vapor facilmente inflamáveis. H336 Pode provocar sonolência ou vertigens.P102: Manter fora do alcance das crianças. P280: Usar luvas de protecção/vestuário de protecção/protecção ocular/protecção facial. P210: Manter afastado do calor, superfícies quentes, faísca, chama aberta e outras fontes de ignição. Não fumar. P301 + P330 + P331: EM CASO DE INGESTÃO: enxaguar a boca. NÃO provocar o vómito. P303 + P361 + P353: SE ENTRAR EM CONTACTO COM A PELE (ou o cabelo): despir/retirar imediatamente toda a roupa contaminada. Enxaguar a pele com água/tomar um duche. P305 + P351 + P338: SE ENTRAR EM CONTACTO COM OS OLHOS: enxaguar cuidadosamente com água durante vários minutos. Se usar lentes de contacto, retire-as, se tal lhe for possível. Continuar a enxaguar. Contém:  Isopropanol (>90 %) EG-Nr. 200-661-7  & Ácido sulfúrico (15 %) EG-Nr. 231-639-5

Reviews (7)

7 reviews for THC / CBD QTEST

4.9 Rating
1-5 of 7 reviews
  1. Access Premium Customer Support Portal

  2. All good

  3. Ditto

  4. I would prefer the reagent quantities to be higher, so that it would be possible to use, for example, 1 g instead of 0.2 g of dried material for the test

  5. leider hat bei mir der Test für mein “Öl” nicht funktioniert A B E R ich empfehle das Test-Kid trotzdem. Warum? Weil, wenn man mit Profis zusammen arbeiten will, dann ist man bei den Leuten von Miraculix genau richtig! Ich habe Fragen gestellt zum Test, als es nicht klappte, und habe ausführliche Antworten erhalten, mit Hinweisen, Vorschlägen etc., wie es doch noch funktionieren könnte. Sprich, sie wollen nicht nur den Test verklickern, sondern sind wirklich am zufriedenen Kunden interessiert.

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