Do shrooms show up on a drug test?
Usually not. Standard workplace drug tests, including 5-panel, 10-panel and federal DOT tests, don't look for psilocybin. Specialized lab tests can detect it, but the body clears it fast: psilocin typically drops below detectable levels in urine within about a day.
On this page
- Standard 5- or 10-panel test
- Doesn't screen for psilocybin
- DOT (federal workplace) test
- Doesn't include psilocybin
- Specialized lab test
- Can detect psilocin with LC-MS/MS or GC-MS
- Urine window
- Typically about 24 hours, sometimes longer with sensitive methods
- Blood window
- Hours (psilocin's half-life is roughly 1.5 to 4 hours)
- Hair
- Detection has been reported but such tests are rare
Why standard drug tests miss psilocybin
Most drug tests start with an immunoassay screen for a fixed list of substances. The federal Department of Transportation panel, for example, covers marijuana (THC), cocaine, opioids, phencyclidine (PCP), amphetamines and MDMA. Psilocybin isn't on it, and common 5- and 10-panel tests don't include it either. Psilocin, the active form of psilocybin, also shows little cross-reactivity with amphetamine screens, so a false positive for amphetamines from mushrooms alone is unlikely.
Tests that can detect it
Labs can find psilocin using targeted methods such as liquid or gas chromatography with mass spectrometry (LC-MS/MS or GC-MS). These tests must be specifically ordered, cost more and are mostly used in forensic, research or specialized settings. In 2026, scientists at the U.S. Army's forensic toxicology drug-testing laboratory published research on improving how a certified LC-MS/MS method detects psilocin's main urinary metabolite, a sign that some institutional programs can test for it.
How long psilocybin stays in your system
Your body converts psilocybin to psilocin quickly, then breaks psilocin down and excretes most of it in urine as a glucuronide.
- Urine: in a pharmacology study, psilocin levels in urine peaked 2 to 4 hours after a dose and usually fell below the detection limit within about 24 hours. Testing methods that break down the glucuronide can extend that window somewhat.
- Blood: psilocin's elimination half-life in studies ranges from about 1.5 to 4 hours, so blood tests are useful only for a short time.
- Hair: researchers have detected psilocybin in the hair of a mushroom user, but hair testing for psilocybin is uncommon and not standardized.
Individual factors such as body size, metabolism, kidney function and how much was taken all affect these windows. For how long the effects last (a different question), see how long do shrooms last.
Watch out for products that aren't psilocybin
"Mushroom" gummies and chocolates have been found to contain other drugs, including pregabalin, kava compounds and synthetic tryptamines, according to FDA testing. Some of those could matter on a broader drug panel, and you won't know from the label. See fake mushroom products.
Legal note: passing a drug test doesn't change the law. Psilocybin is illegal under federal law, and probation, military and some professional programs can order specialized testing.
Frequently asked questions
Do shrooms show up on a 10-panel drug test?
No. Standard 10-panel tests don't include psilocybin or psilocin. Detecting them requires a specialized lab test, such as LC-MS/MS, that has to be specifically ordered.
How long do shrooms stay in your urine?
In a pharmacology study, psilocin in urine peaked 2 to 4 hours after a dose and usually dropped below the detection limit within about 24 hours. Sensitive methods that measure psilocin glucuronide can sometimes detect it a bit longer.
Can shrooms cause a false positive?
Psilocin shows little cross-reactivity with common amphetamine immunoassays, so a false positive from mushrooms alone is unlikely. Products sold as mushrooms may contain other drugs, though, which could affect results.
Does the DOT test for psilocybin?
No. The federal DOT drug panel covers marijuana, cocaine, opioids, PCP, amphetamines and MDMA, but not psilocybin.
Can a hair test detect magic mushrooms?
It's possible: researchers have detected psilocybin in a user's hair. But hair tests for psilocybin are rare and not standardized, and standard hair panels don't include it.
Sources
- 49 CFR 40.85, drugs tested in DOT programs, eCFR.
- Dasgupta, challenges in laboratory detection of unusual substance abuse, Advances in Clinical Chemistry, 2017.
- Hasler et al., renal excretion profiles of psilocin, Journal of Pharmaceutical and Biomedical Analysis, 2002.
- Sticht and Käferstein, psilocin glucuronide in urine, Forensic Science International, 2000.
- Barajas et al., LC-MS/MS screening method for psilocin, Journal of Analytical Toxicology, 2026.
- Holze et al., pharmacokinetics of psilocybin, Clinical Pharmacology and Therapeutics, 2023.
- Meshkat et al., psilocybin pharmacokinetics review, Pharmaceutics, 2025.
- Pichini et al., psilocybin in hair, Journal of Pharmaceutical and Biomedical Analysis, 2014.
- Outbreak investigation: Diamond Shruumz products, CDC.