FAQ

The best shelf life is achieved in the fridge but they will still last well over the festival season if you can just keep them in a dark, cool, dry place.

It is thought that most fentanyl incidents with “party” drugs are a result of accidental contamination due to careless suppliers. This is rare in the UK and fentanyl incidents are mostly limited to opioid drugs but we should never be complacent.

The frustrating answer (sorry!) is “it depends”. Both on exactly which reagent is used and which substance it turns out to be. The liebermann reagent tends to be good for distinguishing similar substances but if you’re not sure you can always email us.

Great question! It always makes us happy to reduce, reuse and recycle rather than landfill. Let the bottles soak in 100mL tap water per bottle (a bucket is fine for all the bottles) for 24 hours, then soak them in a mug of sodium bicarbonate in water for 6 hours and they’ll be safe.

Yes, the packs are 25mm wide so fit through any letterbox. They are plain with no markings except the address and stamp.

This is believed to be the result of small amounts of a breakdown product created when cocaine is stored (perhaps when smuggled) with moisture present. No international checking organisation has identified the exact cause.

Yes, every bottle contains at least 2mL as stated when purchased. We use 5mL bottles as they are stronger and release the liquid more evenly.

Yes, a fentanyl testing strip can test for the presence of fentanyl added to heroin or any other drug.

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.

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.

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).

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.