FAQ

  • 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 & delivery information check out our shipping page.

Is there Any shipping delays/concerns, due to lockdowns in the UK? 15. November 2020

Nothing out of the ordinary – we will put a notice page up if we run into delays or problems.


Which reagent or combination of reagents would you recommend for testing ketamine 14. November 2020

Liebermann and mandelin detect ketamine with a noticeable colour change. The marquis reagent then gives no colour change for K, but does change colour for many cutting agents.


There are crystals in my bottle 6. October 2020

This is normal, please see your instruction sheet for more information or contact us by email.


How do I know whether the kits have passed their shelf life? 19. August 2020

See if they respond to aspirin or another substance which you know the identity of. We recommend replacing them after 12 months to be sure that they will work when you need them.


How can I contact you? 22. April 2020

Please reply to the last email we sent you. Alternatively, email askme@reagent-tests.uk. Check the “Terms” page for our phone number


Do the kits go off outside the fridge? I plan to carry them in my luggage while I go travelling across europe. 6. January 2020

The shelf life varies for each one and even then it’s affected by humidity, temperature and oxygen exposure. Our 18*C tests reveal

  • Froehde – over 18 months,
  • Ehrlich – around 1 year,
  • Liebermann – just under 1 year,
  • Marquis – 6-9 months,
  • Mecke – 5-7 months,
  • Mandelin – 5-7 months,


Is packaging discrete? 8. January 2019

It’s a 25mm white box with nothing but your name and address on it.


What happens if a sample contains multiple drugs? 14. August 2017

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.


Can I send you a photo of my test result for clarification? 30. August 2016

Definitely! We love talking about testing, please email admin at reagent-tests.uk.