How to Clean Hair Follicles for Drug Test With Reliable Lab Insights

What is hair follicle drug testing and how does it work?

Hair follicle drug testing analyzes a small sample of hair to detect drug use over the past 90 days typically. Drugs and their metabolites are deposited into the hair shaft from the bloodstream and remain there as hair grows.

This method is preferred for its long detection window compared to urine or saliva testing. Hair samples are collected at authorized centers through AMH Nationwide and sent to one of five national labs: Quest Diagnostics, LabCorp, Omega Labs, United States Drug Testing Labs, or ExperTox.

Can you clean your hair follicles for a drug test?

You cannot reliably clean your hair follicles for a drug test. The drug metabolites are embedded inside the hair shaft, not just on the surface. Washing, bleaching, or using detox shampoos does not guarantee removal of these substances.

Testing labs use advanced methods including immunoassays and mass spectrometry to detect even small traces of drugs in hair samples. Attempting to alter or tamper with hair samples can be detected by the lab’s quality controls.

How do hair drug tests detect substances despite cleaning attempts?

Hair drug testing detects drug metabolites trapped inside the hair cortex which is protected by the cuticle layer. Cleaning only affects surface contaminants and cannot remove metabolites incorporated during hair formation.

Laboratories analyze hair samples using highly sensitive techniques that identify specific drug compounds. These tests are designed to resist false negatives caused by external treatments or contaminants.

Are there alternative drug tests if hair follicle testing is a concern?

Yes, urine, saliva, and blood drug tests have shorter detection windows and are less affected by hair treatments. AMH Nationwide provides these testing options routed through the same national lab networks.

DOT-regulated safety-sensitive testing requires federally certified urine protocols under 49 CFR Part 40. Hair testing is typically used for non-DOT roles or extended detection needs.

How do you arrange a hair follicle drug test through AMH Nationwide?

AMH Nationwide provides the lab order and directs the requester to one of over 20,000 nationwide collection sites. There is no online ordering for hair follicle drug tests. To schedule or ask questions, call (877) 731-6362.

All non-negative hair drug test results are reviewed by a certified Medical Review Officer to ensure accuracy and compliance with SAMHSA, CAP, and CLIA standards.

How accurate are hair follicle drug tests and can they be challenged?

Hair follicle drug tests are highly accurate with low false positive rates when conducted by accredited labs like those used by AMH Nationwide. Results undergo medical review to rule out legitimate explanations for positive findings.

Attempts to cheat or tamper with hair samples are often detected by the lab. Courts, employers, and probation agencies rely on these tests for reliable drug use assessments.

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