Frequently Asked Questions About Drug Testing Kits

Drug testing kits are essential tools for harm reduction, but if you’re new to them, you might have questions. This FAQ covers the most common concerns about using drug testing kits, from accuracy to practicality.
Q. How accurate are drug testing kits?
Modern rapid drug testing kits are highly accurate when used correctly, up to 99% in most cases.
- Why it matters: Kits from reliable vendors like Substance Check are designed to detect harmful substances with precision.
- Pro Tip: Always follow the instructions to ensure accurate results.
Q. Can drug testing kits detect multiple substances?
Some kits test for specific substances, while others offer broader detection. Be sure to read all product descriptions before purchasing and using them.
- Example: Fentanyl test strips detect only fentanyl and its analogs, while cocaine adulterant kits can detect a range of additives that could have been added.
- Solution: Use the right kit for the drug you plan to test.
Q. Do test kits expire?
Yes, most test kits have an expiration date, so please be sure to check before using the kit.
- Why it matters: Expired reagents may not produce reliable results or give you false positives.
- Pro Tip: Check the expiration date before testing and replace kits as needed.
Q. Can I use test kits on any drug?
Each test is usually meant for a specific drug. Make sure you're using the right test for the right drug to ensure the best results.
- Example: Cocaine purity kits are designed for cocaine and won’t work on MDMA.
- Solution: Use a test kit specific to the substance you’re testing.
Q. How long does testing take?
Most tests take only a few minutes, some take even less than that..
- Example: Fentanyl test strips typically deliver results in under 5 minutes.
- Pro Tip: Prepare your materials in advance to save time.
Q. Are drug testing kits legal?
In most countries, including Thailand, drug testing kits are 100% legal. They weren't easily available though in Thailand until recently with the pop up of a few companies selling online, like us.
- Why it matters: They’re harm reduction tools intended for detection, and are not promoting drug use, or claimed to be drug paraphernalia.
- Pro Tip: Always check local laws if you’re unsure.
Q. Can I test for fentanyl in any drug?
Yes, fentanyl test strips work on any powders, pills, plants like cannabis flowers, and liquids.
- Why it matters: Fentanyl contamination is a growing risk in Thailand in drugs like cocaine, MDMA, methamphetamines and heroin. It's not just in the North America and Europe anymore.
- Pro Tip: Dissolve a small sample in water for accurate results.
Q. Are test results 100% reliable?
No test can guarantee absolute safety, but testing dramatically reduces your risk.
- Why it matters: Even with a clean test, use moderation and stay informed about potential risks.
- Pro Tip: Combine testing with safe practices like using in moderation and never alone.
Why testing matters
Testing your drugs isn’t just about peace of mind—it’s about staying alive. With the right tools and knowledge, you can make informed decisions and reduce risks while out partying with friends.
Why choose Substance Check?
At Substance Check, we offer reliable, easy-to-use drug testing kits for various substances. We've some other companies pop up in Thailand, but we want to keep costs as low as possible, while providing people with quality products without all the fluff. Whether you’re a tourist or a local in Thailand, our kits are designed to help you stay safe. Spread the word so that we can get these tests out to everyone who needs them!