Hair Drugs Tests
Hair Drugs Tests is a laboratory test you can order directly. A hair drug test detects certain drugs or their breakdown products that have been deposited in hair over time. It is typically ordered to check for recent or past drug use, often in workplace, legal, or clinical settings.
- Sample type
- hair
- Category
- Drug & Urine Screening
- Turnaround
- 1-3 business days
- Price
- $59
- Referral
- Not required
A hair drug test detects certain drugs or their breakdown products that have been deposited in hair over time. It is typically ordered to check for recent or past drug use, often in workplace, legal, or clinical settings.
What it measures
- Amphetamines — Includes methamphetamine and related stimulants.
- Cocaine — Detects cocaine and its main metabolite, benzoylecgonine.
- Opiates — Covers drugs like morphine, codeine, and heroin markers.
- Phencyclidine (PCP) — A dissociative drug sometimes included in standard panels.
- Tetrahydrocannabinol (THC) — The active component in marijuana.
Who it is for
Employers, legal professionals, and sometimes doctors order hair drug tests. They may be used for pre-employment screening, post-accident testing, or monitoring in treatment programs.
Preparation
No fasting or special preparation is needed. Hair is collected from the head, and the sample is cut close to the scalp; if head hair is insufficient, body hair may be used.
Results and what they mean
Results are reported as positive or negative for each drug, with a detection window of roughly 90 days. A clinician interprets results in context, as they do not diagnose a condition or prove impairment. This is general information, not medical advice.
How to order this test
- Choose the test and place a confidential order online.
- Select a certified collection site and pick a time that suits you.
- Have your specimen collected — most draws take only a few minutes.
- Review results in a secure portal, typically within 1–3 days.
Preparation, hours, and pricing vary by site; confirm details directly with the lab before your visit.
Availability by state
Direct-access online ordering for the hair drugs tests is available in most states. It is currently unavailable in 6 states:
Everywhere else you can order confidentially and collect your sample at a certified site. Browse by state →
Frequently asked questions
How far back can a hair drug test detect drug use?
It can typically detect drug use from about 90 days prior, depending on hair length and growth rate.
Can I wash my hair to remove drugs before the test?
No. Washing or treating hair does not reliably remove drugs that have been incorporated into the hair shaft.
What if I don't have enough head hair?
The collector may use hair from other parts of the body, such as the arms, legs, or underarms.
Is a hair drug test the same as a urine drug test?
No. Hair tests look for long-term use, while urine tests usually detect recent use over a few days.