Will cbd show up in hair drug test
Will CBD Show Up in Hair Drug Test? Understanding What Hair Tests Detect
Will CBD show up in hair drug test? Hair drug tests analyze hair follicles for THC and other drug metabolites, not CBD itself. CBD products with trace THC may cause a positive result. Hair tests detect drug use over 90 days. For precise testing through national labs and certified review, call (877) 731-6362.
What substances does a hair drug test detect?
A hair drug test detects the presence of drug metabolites in hair follicles. It typically screens for substances like THC (the active compound in marijuana), cocaine, opiates, amphetamines, and phencyclidine (PCP). CBD, or cannabidiol, is not usually targeted because it is not psychoactive and does not metabolize into the compounds these tests identify.
Hair testing involves collecting a small sample of hair, usually from the scalp, which is then sent to a national lab network for analysis. AMH Nationwide routes samples through Quest Diagnostics, LabCorp, Omega Labs, United States Drug Testing Labs, and ExperTox, ensuring consistent and reliable results.
Will CBD show up on a hair follicle drug test?
CBD itself does not show up on hair follicle drug tests because these tests do not look for cannabidiol or its metabolites. However, many CBD products contain small amounts of THC, which can accumulate in hair and trigger a positive test result.
Hair follicle tests detect THC metabolites deposited in the hair shaft during the 90-day detection window. Even trace THC levels in some CBD products may be enough to be detected depending on usage frequency and product quality.
How reliable are hair drug tests in detecting THC from CBD use?
Hair drug tests are highly sensitive and can detect THC metabolites at very low levels. The test results are reviewed by a certified Medical Review Officer (MRO) to confirm positives and rule out false positives.
Because hair tests analyze long-term drug exposure, occasional use of pure CBD with negligible THC is unlikely to produce a positive result. However, regular use of CBD products with THC can result in detectable metabolite levels in hair samples.
What is the detection window for THC in hair drug tests?
Hair drug tests typically detect drug metabolites deposited in hair follicles over approximately 90 days. This means any THC exposure within that period can potentially be identified.
Hair grows about half an inch per month, and a standard 1.5-inch hair sample represents roughly a three-month history of drug use. This detection window is longer compared to urine or saliva tests.
Need a Hair Drug Test?
Contact AMH Nationwide to schedule hair follicle drug testing through certified labs. Call (877) 731-6362 for assistance.
How does AMH Nationwide handle hair drug testing?
AMH Nationwide provides the lab order and directs clients to one of over 20,000 nationwide collection sites. Samples are sent to one of five national lab networks: Quest Diagnostics, LabCorp, Omega Labs, United States Drug Testing Labs, or ExperTox for analysis.
All non-negative hair drug test results undergo review by a certified Medical Review Officer to ensure accuracy and compliance with SAMHSA, CAP, and CLIA standards. There is no online ordering; all testing requires contacting AMH by phone at (877) 731-6362.
Is hair testing used for DOT-regulated drug screening?
No, hair testing is not used for Department of Transportation (DOT) regulated drug screening. DOT requires urine testing under the federally certified protocol 49 CFR Part 40 for safety-sensitive positions.
Hair drug tests are typically used for non-DOT employment, court, probation, or individual testing where long-term drug use history is relevant.
Common Questions
CBD oil that contains trace amounts of THC can cause a positive hair drug test result because hair tests detect THC metabolites. Pure CBD products without THC should not cause a positive.
THC metabolites can be detected in hair for up to 90 days after use. If CBD products contain THC, that exposure may be reflected in hair samples collected within this window.
Passive exposure to CBD or marijuana smoke is unlikely to produce detectable THC metabolite levels in hair. Hair testing reflects ingestion or consumption rather than environmental contact.
Hair drug tests detect THC metabolites but do not detect CBD or differentiate between CBD and THC use. Positive results indicate THC exposure, not CBD.
If a hair drug test is positive, a certified Medical Review Officer reviews the case. You can provide documentation about CBD use and product composition for evaluation.
To arrange a hair drug test, call AMH Nationwide at (877) 731-6362. You will be directed to a collection site and the sample analyzed by a national lab network.
Ready to get started?
AMH Nationwide provides the lab order and arranges collection nationwide. Every non-negative result reviewed by a certified Medical Review Officer. Call (877) 731-6362 or contact us.