Can hair dye affect a hair follicle drug test
Can Hair Dye Affect a Hair Follicle Drug Test? What You Should Know
Can hair dye affect a hair follicle drug test? Hair dye does not reliably alter the results of a hair follicle drug test due to the scientific methods used by accredited labs. Hair follicle testing detects drug metabolites embedded in the hair shaft, which hair dye cannot remove or mask. For more 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 that enter the hair shaft from the bloodstream. This test can detect drug use over a period of up to 90 days, depending on hair length. Accredited labs like AMH Nationwide use sensitive methods to extract and identify these metabolites, making the test highly reliable.
Can hair dye affect a hair follicle drug test?
Hair dye does not affect a hair follicle drug test in a way that would change the outcome. Drug metabolites are located inside the hair cortex, and while hair dye affects the outer cuticle, it cannot remove or hide these metabolites. Accredited labs use advanced testing that accounts for cosmetic treatments, maintaining result accuracy.
Why doesn’t hair dye interfere with drug metabolite detection?
Hair dye primarily alters the hair’s cuticle layer and color. Drug metabolites are embedded deeper in the cortex, protected from surface treatments. Testing methods involve washing and chemical extraction steps that remove external contaminants and isolate metabolites. These processes ensure hair dye does not mask or eliminate drug evidence.
How do labs ensure accurate results despite hair treatments?
Labs like AMH Nationwide route samples through national networks including Quest Diagnostics, LabCorp, Omega Labs, United States Drug Testing Labs, and ExperTox. Each lab follows strict protocols including washing procedures to remove external contaminants. Additionally, every non-negative result is reviewed by a certified Medical Review Officer to confirm validity.
Need a Hair Follicle Drug Test? Contact AMH Nationwide
AMH Nationwide provides access to extensive national lab networks and collection sites for hair follicle drug testing. Call (877) 731-6362 to schedule or discuss your testing needs.
Who typically orders hair follicle drug tests and why?
Employers, courts, probation agencies, and individual requesters often use hair follicle drug tests for their extended detection window and resistance to short-term drug masking. This test helps verify drug history reliably. For safety-sensitive DOT-regulated roles, urine testing with federally certified protocols is required instead of hair testing.
Does hair dye affect the detection window or test timing?
Hair dye does not change the detection window of a hair follicle drug test. The test typically detects drug use up to 90 days prior, depending on hair length. Dyeing hair before or after drug use will not alter when metabolites can be detected. For timing or panel details, contact AMH Nationwide for guidance.
Common Questions
No, hair dye does not cause false negatives because drug metabolites are located beneath the hair cuticle and are not removed by dyeing.
Most hair treatments, including bleaching and dyeing, do not reliably mask drug metabolites embedded in the hair cortex.
Hair follicle testing can detect drug use for up to 90 days depending on hair length, as metabolites accumulate in hair over time.
Labs note hair condition and may consider cosmetic treatments during analysis, but this does not affect the detection of drug metabolites.
No, DOT requires urine testing under federally certified protocols. Hair testing is used for non-DOT roles.
Contact AMH Nationwide at (877) 731-6362 to be directed to a local collection site. There is no online ordering.
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.