Hair Testing - Quest Diagnostics
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Hair drug testing
Hair testing continues to evolve
For employers who cannot compromise and are concerned about drug use in their workforce, now available with expanded opiate testing for Fentanyl and Methadone, hair testing is the right product to detect lifestyle use of drugs.
Our commitment the continuous improvement within our hair testing product helps to boost our workforce solutions, an evolution in testing made for industries looking for the longest window of drug detection.
Learn more about hair drug screening.
Hair testing overview
Hair drug testing is the only testing method that provides up to a 90-day drug use history, an effective way to evaluate long-term patterns of use. Why hair testing
Frequently asked questions
What is the difference between hair testing and hair follicle testing? How much hair is cut to perform a drug test? Can a donor cheat a hair drug test? Read our FAQs
Hair testing collections
Locate a convenient hair testing collection site. A hair drug test only requires approximately 100-120 strands of hair for testing at the lab. Collect a hair specimen
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Contact usProducts and services
Products and services
- Hair Drug Testing & Screening
- Benefits of Drug Testing Hair vs. Urine
- Hair Testing Certifications & Cutoff Levels
- Hair Specimen Collections for Drug Testing
- Hair Drug Screening Facts & Information
- Oral Drug Testing & Screening
- Benefits of Oral Fluid Drug Screening
- Oral Fluid Testing Certifications & Cutoff Levels
- Oral Fluid Specimen Collections
- Oral Drug Screening Facts & Information
- Oral fluid (saliva) drug testing
- Specimen Validity Testing
- Urine testing
- Urine Testing Overview
- Urine Specimen Collection for Drug Tests
- Urine Testing Certifications & Cutoff Levels
- Urine DOT drug test
- Urine testing FAQs
- Benefits of Drug Testing with Us
- Industry focused drug screening solutions
- Instant drug testing
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