How to cleanse hair follicles for drug test
How to Cleanse Hair Follicles for Drug Test: Facts and Testing Insights
How to cleanse hair follicles for drug test is a common concern, but scientifically, hair drug tests detect drug use over 90 days and are difficult to alter. AMH Nationwide processes samples through five national lab networks with certified Medical Review Officers. For reliable testing information, call (877) 731-6362.
What is a hair follicle drug test and how does it work?
A hair follicle drug test analyzes a small sample of hair to detect drug metabolites deposited in the hair shaft from bloodstream exposure. It typically detects drug use over a 90-day period, depending on hair length.
Hair testing is used by employers, courts, and probation agencies because it provides a longer detection window than urine or saliva tests. The test samples are sent to one of five national lab networks, including Quest Diagnostics and LabCorp, for processing.
Every non-negative result is reviewed by a certified Medical Review Officer to ensure accuracy and compliance with federal guidelines.
Can hair follicles be cleansed to pass a drug test?
Scientifically, hair follicles cannot be reliably cleansed to pass a drug test. Drug metabolites are incorporated into the hair shaft from the bloodstream and remain detectable until the hair grows out or is cut.
Various products and home remedies claim to cleanse hair follicles, but none have been proven effective in peer-reviewed studies or by accredited labs.
AMH Nationwide emphasizes that altering test results is not feasible through cleansing and that lab protocols, including Medical Review Officer review, maintain test integrity.
What is the detection window for drugs in hair follicle tests?
Hair follicle drug tests can detect drug use typically within the past 90 days. This detection window depends on the length of hair collected, usually 1.5 inches closest to the scalp representing approximately three months of growth.
Drugs are deposited in the hair shaft as hair grows, making it possible to detect historical drug use rather than recent or one-time use.
Because hair testing reflects long-term use, it is less effective for detecting very recent drug consumption compared to urine or saliva tests.
How do I get a hair follicle drug test through AMH Nationwide?
AMH Nationwide does not provide online ordering for hair follicle drug tests. To schedule a test, call (877) 731-6362 to obtain a lab order and be directed to one of over 20,000 nationwide collection sites.
Tests are processed through one of five national lab networks: Quest Diagnostics, LabCorp, Omega Labs, United States Drug Testing Labs, and ExperTox.
After collection, samples undergo strict chain-of-custody protocols and certified Medical Review Officer evaluation to ensure reliable results.
Need a Hair Follicle Drug Test?
Call (877) 731-6362 to get a lab order and be directed to a collection site near you. AMH Nationwide works with top labs to provide accurate results.
Is hair follicle testing used for DOT-regulated drug testing?
Hair follicle drug testing is not approved for Department of Transportation (DOT) regulated safety-sensitive positions. The DOT mandates urine testing under the federally certified urine protocol 49 CFR Part 40.
Hair testing is sometimes used for non-DOT roles or as part of pre-employment or forensic testing when a longer detection window is desired.
AMH Nationwide follows all regulatory requirements and directs clients to appropriate testing methods based on the intended use.
How reliable and accurate are hair follicle drug tests?
Hair follicle drug tests are highly reliable when conducted by accredited labs following strict protocols. The use of five national lab networks and certified Medical Review Officers ensures that results are accurate and defensible.
False positives are rare due to confirmatory testing by methods such as gas chromatography-mass spectrometry (GC-MS).
Environmental exposure to drugs is unlikely to cause a positive hair test since metabolites must enter the hair from the bloodstream.
Common Questions
No shampoo or detox product has been scientifically proven to cleanse hair follicles of drug metabolites. Hair drug tests detect drugs embedded in the hair shaft, which are not removed by washing.
Drugs typically appear in hair about 5 to 10 days after use, as hair grows out from the follicle and incorporates metabolites from the bloodstream.
Cutting hair can remove recent growth containing drug metabolites, but labs may collect hair from multiple sites. Complete removal is difficult and may raise suspicion.
Passive exposure is unlikely to produce a positive hair test because metabolites must enter the bloodstream to be incorporated into hair.
Common drugs detected include marijuana, cocaine, opiates, amphetamines, PCP, and others depending on the testing panel requested.
Costs vary by panel and detection window. Contact AMH Nationwide at (877) 731-6362 for a quote and test options.
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.