- You can use this page to ask questions.
- The text box allows you to submit a question.
- Your question will not show up until it gets answered (~48h)
- It is anonymous and should not be used for order queries.
- You can get a faster response by emailing admin (at) reagent-tests.uk
- For shipping information check out our Contact & Info page.
Using the reagents is really simple, more information can be found on our instructions page, and paper instructions also come with the kits.
Yes, a fentanyl testing strip can test for the presence of fentanyl added to heroin or any other drug.
Unfortunately reagent tests can’t give a percentage purity. The knowledge of whether cutting agents are present can help accounting for strength but it’s not possible to detect exactly how much cocaine is present as well.
Depending on storage conditions (high temperature), how often they are opened (high moisture) we would expect them to last for 50-75% of their normal shelf life. The froehde reagent is most resistant to higher temperatures
The liebermann reagent can do this but MDA is very rare on european markets
The colour is quantitative, but you are correct to note that PMxA has a paler colour so a 50/50 mix perfectly mixed with MDMA would probably be hard to detect. However, if it was a mix of two types of crystal then you can often see the difference between that and a pure sample.
Unfortunately benzodiazepines are quite nonreactive and as a result there are almost none that give a colour change with reagents. The main concerns with counterfeit pills is them having a much stronger effect than normal and so this can only be done with lab measurements. The presence of fentanyl can also be a concern, you can dissolve the tablet into vodka and use our Fentanyl Testing Strips to check for this.
While wearing gloves and eye protection, start the cold tap running gently and then remove the lid of the reagent bottle and upturn it so that the contents drip into the flowing water. As soon as they are diluted, the risks are very low but it is not safe to drink or wash in the water.
Yes, extremely discreet and the only thing on the outside is the address and postage sticker. Please check our shipping info page for more information.
You would have to check the regulations of your airline but if you do, it is best to put them in checked luggage and make sure that they are double bagged as they will damage your luggage if they leak (due to the reduced pressure in the hold).
Please email us for enquiries about specific orders – we cannot publish private information
Ketamine itself doesn’t give a colour change with any reagents but cutting agents do – the cocaine testing multipack is actually most suitable for this as some preservatives in vetinary ketamine give a faint orange reaction with the mandelin reagent and a faint yellow with liebermann, which is a helpful identification hint.
It will produce a mixture of the colours – a lot like mixing two colours of paint. If you have a powder or crystalline substance with two different looking types of crystal, try to separate them and test them individually.
The statement note is discreet and cannot be linked to us through google or other search engines (and we’re not going to post it here for exactly that reason!)
The bottles have a built in dropping system so do not need pipettes
Definitely! We love talking about testing, please email admin at reagent-tests.uk.
We are not aware of any countries in which reagent tests are illegal. The reagents are used in laboratories for testing other common compounds so banning them would be impractical.
The ehrlich reagent can be applied directly to blotter.
Other reagents need the blotter to be submerged in alcohol (rubbing alcohol works fine) first.
Please contact us by email to discuss this.