18 Panel Hair Follicle Drug Test
Health Street's 18 Panel Hair Drug Test is our most comprehensive hair drug testing option, screening for a broad range of prescription medications, illicit drugs, and controlled substances. A technician will collect a hair sample, and our 18 panel drug test provides an extended detection window of approximately 90 days. This panel is a great option for employers who want a more complete picture of a candidate's drug use history.
If an employer needs to test for more than a standard panel provides, they sometimes choose the 18 panel drug screen. This test is good for a variety of employment purposes, like safety-sensitive jobs, executive hiring, return-to-duty testing, court-ordered testing, and more. Health Street has clinics nationwide, and registration is quick and easy.
Register online or call (888) 378-2499 to schedule an 18 panel drug test today.
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Frequently Asked Questions
How far back does an 18 panel drug screen detect drug use?
Hair testing looks back about 90 days. The drug metabolites can take a while to become detectable in hair, so this type of drug test is best used for identifying a long-term pattern of use, not very recent use.
Why choose an 18 panel instead of a smaller drug panel?
An 18 panel drug screen can detect more classes of drugs than lower panels. So, while a 5 panel only detects five classes of drugs, the 18 panel can detect about 18 classes of drugs.
Does the 18 panel test include fentanyl?
Yes. This particular panel does detect the presence of fentanyl.
Can hair treatments affect test results?
Normal washing and shampooing shouldn't interfere with a hair drug test.
Can employers test multiple employees at the same time?
Yes. Employers can use Health Street to coordinate testing for one employee, an entire department, or workers located across the country.
Can this test be combined with other workforce screening services?
Yes. Employers can order an 18 panel drug test along with background checks, occupational health services, identity verification, and other employment screening services.
How long does it take to receive results?
Turnaround time depends on laboratory processing and whether additional testing is needed. When results are ready, they're posted securely online.
About Our 18 Panel Hair Follicle Drug Test
What Is an 18 Panel Drug Test?
This test is our most comprehensive hair drug test available. Health Street's 18 panel drug screen analyzes a professionally collected hair sample for a broad range of prescription medications, illicit drugs, and commonly abused controlled substances. Because drug metabolites become incorporated into the hair shaft as hair grows, the test can identify patterns of drug use over approximately the previous 90 days.
Hair testing is often selected when employers need a longer detection window than urine or saliva testing can provide.
When Is an 18 Panel Drug Test Used?
An 18 panel drug test is commonly ordered when employers need the broadest possible drug screening. It is frequently used for:
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Executive and management hiring
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Safety-sensitive positions
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Healthcare employees
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Court-ordered testing
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Child custody cases
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Return-to-duty programs
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Ongoing employee monitoring
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Personal testing
Organizations that require more extensive screening than a standard five-, seven-, or twelve-panel test often choose an 18 panel drug screen because it includes additional drugs that may not appear on smaller panels.
Why Choose an 18 Panel Hair Drug Test?
Health Street's 18 panel is our most comprehensive hair drug testing option. In addition to its extended detection window of approximately 90 days, it screens for a larger number of drugs than standard workplace hair tests.
Benefits include:
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Approximately 90-day detection window
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Expanded drug panel
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Difficult to adulterate or substitute
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Laboratory confirmation of non-negative results
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Nationwide collection sites
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Secure online reporting
This test is ideal for employers who want the broadest available view of long-term drug use while supporting a drug-free workplace.
Why Choose Health Street
Health Street's drug testing services offer individuals and employers many advantages and benefits.
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Safe, secure, and fast drug testing with accurate results
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Choose from our nationwide network of more than 10,000 licensed labs
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Mobile drug testing available for companies and individuals
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Secure portal for easy test management and viewing of results
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Trusted provider in the drug testing industry
What Drugs Does the 18 Panel Hair Follicle Drug Test Cover?
Please keep in mind that although this is the 18 Panel Hair Follicle Drug Test, more types of substances can be detected in this panel. This is because many of these drugs belong to the same class (e.g., codeine, morphine, and heroin are all basic opiates).
The following substances can be detected in the 18 Panel Hair Follicle Drug Test. Use the below links for more information about each substance:
Related Tests
Need a different testing option?
Health Street offers many other options for hair drug testing. If you'd like to see a comprehensive list of all hair drug tests that we offer, you can view all hair tests here.
If hair testing isn't what you need, consider trying one of the following options: