Reliable Cocaine Drug Testing Kits for Workplace Drug Testing
A urine test that screens for cocaine and its metabolite benzoylecgonine at the standard 300 ng/mL cut-off used in workplace testing. Cocaine clears the body relatively quickly, typically detectable for two to four days after use, with heavy use extending that window. Used in workplace screening programmes, by treatment services and by families supporting someone in recovery. The result is read in about five minutes.
Intended use
For workplace, personal or family drug screening. Screening results are presumptive and are not evidential.
This is a screening test intended to support, not replace, professional medical advice. Please consult a doctor about your results.
What’s in the box
Everything you need is included — nothing else to buy.
- 1×Test strip, individually foil-sealed
- 1×Full instructions
How you do it
No lab, no appointment, nothing to post. Most people finish the sample step in under two minutes.
- 1Open the pouch10 sec
Do not break the seal until you're ready to begin.
- 2Collect a urine sample10 sec
Collect the sample in a clean container.
- 3Dip the strip15 sec
Dip the absorbent end into the sample for 10–15 seconds, keeping the liquid level below the MAX line.
- 4Lay flat, then read the result5 min
Remove the strip and lay it flat on a clean surface. Read at 5 minutes. Do not read the result after 10 minutes.
What your result will mean
Worth knowing before you test, not after.
Questions people ask
What if the result is positive?
A positive screening result isn't a diagnosis — it means further testing is worthwhile. Take the result to a GP, who will arrange a confirmatory laboratory test. Screening tests are deliberately sensitive, so a positive result is a strong reason to get checked properly rather than a certainty either way. Finding out early almost always gives you more options, not fewer.
How long is cocaine detectable in urine?
Typically two to four days after use, extending with heavy or prolonged use. The test detects benzoylecgonine, a metabolite that persists longer than cocaine itself.
I'm nervous about testing at all. Is that normal?
Yes, and it's the most common reason people put testing off. It can help to know that a test only tells you something that is already true — it doesn't change your situation, it just gives you the chance to act on it. You can also test with someone you trust nearby, and you don't have to read the result alone.
Is a positive screening result conclusive?
No. Screening results are presumptive and need laboratory confirmation before being relied on for any formal process.
What if I make a mistake doing the test?
The most common issue is not getting enough sample, which usually shows up as an invalid result with no control line. If that happens the test hasn't run correctly and the result shouldn't be interpreted — you'll need to order another test to get a valid result. Following the instructions in the pack carefully is the best way to avoid this.
Will the packaging show what I've ordered?
No. Everything is dispatched in plain outer packaging with nothing on the label indicating the contents. Your card statement shows only "Seradiag" and an order number, and our emails never name the tests you've bought.
Are these the same tests a clinic would use?
They are CE marked in-vitro diagnostic tests from established manufacturers, in many cases the same devices used in professional settings. The difference is usually the packaging and the instructions, which are written for self-testing rather than clinical use.
How accurate are the tests?
Accuracy figures are published on each product page, taken directly from the manufacturer's instructions for use. No rapid test is perfect: results can be affected by how and when the test is taken, and by individual biological factors. That is why every result — particularly an unexpected one — should be discussed with a healthcare professional.
Can I return a test if I change my mind?
Yes, if the seal is unbroken — within 14 days. Once a kit has been opened it can't be returned for hygiene reasons, which is a legal exception for sealed health products. Faulty, damaged or expired kits are always refunded, opened or not.
How quickly will it arrive?
Delivery options and timescales are shown at checkout. Orders placed before 2pm on a working day are dispatched the same day. If you need a result quickly, choose a faster delivery option at checkout.
Do I need to send anything to a laboratory?
No. These are self-contained rapid tests that you read yourself at home, usually within 5 to 15 minutes. Nothing is posted anywhere, and we never see or store your results.
Who are Seradiag?
Seradiag Ltd is a UK company (registered number 14428934) supplying CE marked diagnostic tests. If you have a question before ordering, email us — we would rather help you choose the right test than sell you the wrong one.