Hair Follicle Drug Testing - Garrison, TX

Employment, DOT, Court Ordered, Personal
Urine| Hair Follicle | Oral Fluid | Blood | ETG

With 35 testing centers in the Garrison area, we offer drug and alcohol testing for employment, probation and DOT requirements. Additional services include DOT consortium enrollment, DNA Testing and background checks. Order your tests and services online or call (800) 221-4291.

35 Hair Drug Testing Centers in Garrison

Minutes Away, Test Today

614 S Grove St

0.42 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
614 S Grove St
Marshall, TX 75670

711 E End Blvd S

1.11 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
711 E End Blvd S
Marshall, TX 75670

500 Harper Dr

2.25 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
500 Harper Dr
Marshall, TX 75672

12605 I H 20 S Service Rd W

10.79 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
12605 I H 20 S Service Rd W
Hallsville, TX 75650

450 E Loop 281 Ste C2

18.60 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
450 E Loop 281 Ste C2
Longview, TX 75605

3202 N 4th St Ste 100

21.17 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3202 N 4th St Ste 100
Longview, TX 75605

815 N 4th St Ste D

21.22 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
815 N 4th St Ste D
Longview, TX 75601

409 N 6th St

21.35 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
409 N 6th St
Longview, TX 75601

700 E Marshall Ave

21.42 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
700 E Marshall Ave
Longview, TX 75601

603 N Second Street,

21.58 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
603 N Second Street,
Longview, TX 75601

2755 State Highway 322

23.21 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2755 State Highway 322
Longview, TX 75603

1509 W Loop 281

23.88 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1509 W Loop 281
Longview, TX 75604

2101 W Loop 281

24.53 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2101 W Loop 281
Longview, TX 75604

3008 W Marshall Ave

24.63 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3008 W Marshall Ave
Longview, TX 75604

3417 W Marshall Ave

24.83 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3417 W Marshall Ave
Longview, TX 75604

325 W Sabine St Ste G

26.90 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
325 W Sabine St Ste G
Carthage, TX 75633

432 W Sabine St

26.91 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
432 W Sabine St
Carthage, TX 75633

2699 Se Loop

27.07 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2699 Se Loop
Carthage, TX 75633

206 E Us Highway 80 Ste F

28.74 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
206 E Us Highway 80 Ste F
White Oak, TX 75693

1121 N Longview St

31.05 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1121 N Longview St
Kilgore, TX 75662

1000 S Spruce St

31.11 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1000 S Spruce St
Vivian, LA 71082

402 N Kaufman St

32.10 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
402 N Kaufman St
Linden, TX 75563

13239 Fm 782 N

32.83 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
13239 Fm 782 N
Henderson, TX 75652

9300 Mansfield Rd Ste 110

34.12 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
9300 Mansfield Rd Ste 110
Shreveport, LA 71118

307 W Upshaw Ave

34.19 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
307 W Upshaw Ave
Gladewater, TX 75647

2738 Greenwood Rd

34.42 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2738 Greenwood Rd
Shreveport, LA 71109

2724 Greenwood Rd

34.44 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2724 Greenwood Rd
Shreveport, LA 71109

2520 Bert Kouns Industrial Loop Ste 105

34.60 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2520 Bert Kouns Industrial Loop Ste 105
Shreveport, LA 71118

2120 Bert Kouns Industrial Loop

34.91 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2120 Bert Kouns Industrial Loop
Shreveport, LA 71118

201 E 2nd

34.98 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
201 E 2nd
Hughes Springs, TX 75656

1033 Hawn Ave

35.70 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1033 Hawn Ave
Sport, LA 71107

820 Jordan Ste 102,

36.25 mi
🕑 Testing Hours: Mon–Fri: 9:00 AM-3:00 PM✓ Walk-in with Electronic Donor Pass
820 Jordan Ste 102,
Shreveport, LA 71101

1121 Louisiana Ave

36.37 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1121 Louisiana Ave
Shreveport, LA 71101

300 Wilson St

36.44 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
300 Wilson St
Henderson, TX 75652

302 Little Ln

36.70 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
302 Little Ln
Kilgore, TX 75662

Employment, Court Ordered, Probation, Family

Accredited Drug Testing offers comprehensive hair follicle drug testing services in Garrison, TX. For those requiring drug or alcohol testing, our expertise in hair analysis ensures accurate results. Testing facilities are available nationwide, capable of performing these crucial tests. Typically, 1.5 to 2 inches of hair from the scalp or body is required. We offer testing for drugs, alcohol/ETG, and other specialized options.

Recently, hair follicle drug testing has gained popularity over traditional methods. Various sectors, such as employers, legal authorities, and addiction specialists, now favor this method. Hair tests provide a longer window for detecting drug usage, often reaching a 90-day period, and offer robust security against tampering. Nevertheless, for recent usage detection, traditional urine tests remain unmatched in accuracy.

What it is, How it works

Seen as an effective tool, hair testing is popular for detecting drug and alcohol consumption. Hair offers a prolonged record of drug and alcohol exposure, capturing biomarkers within the fibers of the hair as it grows. When gathered near the scalp, hair can reveal drug and alcohol use for a period of up to approximately 3 months. Hair collection is straightforward, hard to tamper with, and convenient to ship.

Collecting a 1.5-inch segment of roughly 200 hair strands (similar to a #2 pencil's thickness) from the scalp provides 100mg of hair, which is optimal for testing and verification. When testing for EtG, additional testing, or more than 10 panels, 150mg of the sample is suggested. It's advisable to weigh the hair on a jeweler’s scale. When scalp hair is unavailable, the same amount of body hair can be collected. References to head hair indicate scalp hair only, while body hair covers all other types of hair (such as facial, axillary, etc.).

Process Overview

The laboratory procedure of processing a drug test result involves four key steps: Accessioning, Screening, Extraction, and Confirmation.

During Accessioning, the sample is initially processed into the lab’s system, including the verification of its sealing and shipping, the assignment of a LAN (Laboratory Accessioning Number), and any additional data entry required beyond what the electronic chain of custody system provides.

Screening serves as a preliminary assessment for drugs of abuse. Although Screening is an economical method to eliminate drug presence for most samples, a positive finding requires confirmation for legal acceptance. Presumptively positive samples in Screening must undergo subsequent confirmation.

Should a sample test presumptively positive during Screening, additional hair is extracted from the initial sample for the Extraction stage. Here, drugs are extracted at significantly lower concentrations than in other methods (such as urine or oral fluid), making hair drug screening the most challenging methodology.

Positive screening results are confirmed using GC/MS, GC/MS/MS, or LC/MS/MS methods. All presumptive positive samples undergo washing before confirmation if necessary. The complete laboratory process, from Accessioning to Confirmation, is ensured under both the CAP (College of American Pathologists) Hair designation and ISO / IEC 17025 accreditation standards.

Advantages of hair drug testing:

  • Extended detection period: Hair drug tests can identify drug usage for up to 90 days, unlike urine tests, which have a shorter detection span.
  • Resistance to tampering: Cheating a hair drug test is challenging, ensuring more precise results.
  • Gives historical insight: It displays drug use patterns over time, beyond just recent usage.

Limitations:

  • Cannot reveal immediate usage: Hair tests require about 5-7 days for drugs to become detectable.
  • Expense: Hair tests generally incur higher costs compared to other testing techniques.
  • Result variability: Hair color and personal hair growth variations can influence drug metabolite concentration in the hair.

Note: The term "hair follicle tests" is misleading since the analysis involves the hair strand and not the follicle beneath the scalp

Why Hair Follicle Testing Beats Urine Testing

Superiority of Hair Testing in Garrison, TX

Hair follicle tests offer significant advantages over traditional urine tests. With enhanced detection accuracy and reliability, they provide a broader scope of substance history, crucial for employers and legal systems.

While urine tests may detect recent usage, hair tests ensure comprehensive analysis over a longer period, reinforcing trust and compliance.

Extended Detection Window

Extended Detection Timeframe in Garrison, TX

Hair follicle testing provides a window of detection stretching up to 90 days. This extended period allows for in-depth assessment of drug use history, beneficial for employers wanting thorough evaluations.

With this broader overview, employers can ensure they are making informed decisions regarding job applicants or current employees.

Tamper-Resistant Testing Method

Secure Testing with Tamper-Proof Methods in Garrison, TX

Hair follicle testing minimizes the risk of sample adulteration, offering reliable and tamper-resistant results. Unlike other testing methods, the hair analysis process is virtually foolproof.

This ensures that results are credible and trustworthy, eliminating the possibility of cheating the system, which is crucial in maintaining integrity.

Convenient Nationwide Locations

Convenient Testing Centers Nationwide and Locally in Garrison, TX

Accredited Drug Testing offers nationwide locations, including local access in Garrison, TX. This network ensures easy and hassle-free testing services, meeting diverse needs efficiently.

Quick and accessible testing paths streamline the process, providing peace of mind through reliable service availability.

Simple, Confidential Process

Confidential and Straightforward Process in Garrison, TX

The process for hair follicle testing is designed to be simple and respectful of privacy. Ordering and obtaining results are straightforward, addressing privacy concerns efficiently.

This streamlined approach ensures ease from start to finish, offering a seamless experience for individuals and organizations.

Affordable, Fast Turnaround

Competitive Pricing with Fast Service in Garrison, TX

Our hair follicle testing services provide a balance of affordability and efficiency. Competitive pricing structures ensure cost-effective solutions for all business sizes, coupled with fast turnaround times.

By providing exceptional value and prompt service, we enhance customer satisfaction, delivering peace of mind to those we serve.

Fast, Accurate, and Reliable Results

Rapid and Precise Testing in Garrison, TX

Hair follicle drug testing stands out for its precision and swift results. This advanced method provides accurate detection of substance use, reducing uncertainty and ensuring reliable outcomes quickly.

Employers benefit from the ability to make informed decisions and ensure a safe work environment, with accurate results that leave little room for doubt.

Compliance and Peace of Mind for Employers

Peace of Mind Through Compliance in Garrison, TX

Implementing hair follicle testing in the workplace ensures adherence to drug-free policies, providing reassurance for employers. This practice reduces legal risks and maintains workplace safety.

By ensuring comprehensive and accurate testing, hair follicle analysis promotes a secure and compliant organizational culture.

What's New In Hair Follicle Drug Testing according to the Hair Drug Testing Experts

With its multidisciplinary nature, hair testing brings together researchers, scientists, and experts from various domains to develop innovative techniques, explore new methodologies, and address emerging concerns, responding to the ever-evolving challenges of drug abuse, therapeutic drug monitoring, and environmental exposures to pollutants.

The joint meeting of the Society of Hair Testing (SoHT) and the Italian Group of Forensic Toxicologists (GTFI) was organized in Verona, June 8–10, 2022, and hosted by the Legal Medicine team of the Verona University Hospital, directed by Franco Tagliaro together with Federica Bortolotti and Rossella Gottardo.

It served as a prominent platform for knowledge exchange and collaboration, facilitating groundbreaking advancements in hair testing and analysis. In this special issue of Drug Testing and Analysis, we aim to showcase the remarkable manuscripts presented at this significant event, shedding light on the latest research and highlighting the future directions in this field.

Novel Analytical Techniques: The Verona meeting witnessed the unveiling of cutting-edge analytical techniques, offering enhanced sensitivity, selectivity, and accuracy for drug testing. Remarkable advancements in sample preparation, detection, and identification of drug compounds have been presented. The manuscripts in this section presented novel approaches, such as multianalyte methods and on-line preparation which can enable rapid analysis and improve thorough forensic investigations.

Biomarkers and Pharmacokinetics: The identification and validation of reliable biomarkers and pharmacokinetic studies are fundamental aspects of drug testing and analysis. The impact of hair treatments on the oxidation/decomposition of drugs in hair was also explored, as the long-term fate of drugs incorporated in the keratin matrix. Furthermore, the SoHT meeting in Verona featured research on the identification and quantification of alcohol abuse biomarkers, their stability, and their correlation with exposure and other biomarkers.

Forensic Applications and Interpretation: One of the vital objectives of hair testing is its application in forensic investigations and legal proceedings. The SoHT meeting in Verona emphasized the significance of rigorous interpretation of analytical results and the need for standardized protocols. Manuscripts in this section present advancements in forensic toxicology, and have explored the challenges posed by emerging designer drugs and strategies to combat their proliferation. The pitfalls encountered when the exogenous/endogenous nature of a substance is questioned were presented and discussed. The special issue presents also manuscripts that delve into the ethical implications of drug testing in drug facilitated sexual assaults.

Clinical Applications of hair testing are witnessed by the insight on environmental tobacco smoke exposure, assessed by hair analysis in a population of students and the study of in utero-exposure to drugs of abuse through neonatal hair analysis. Exposure to drugs was also important in cases of child abuse/neglect, when the clinical purpose of hair testing merge with its forensic applications.

The legal framework surrounding hair testing and the achievement of guidelines to ensure fairness, accuracy, and confidentiality in drug testing practices have also been discussed,and the SoHT consensus on general hair testing and testing for drugs of abuse was presented at the meeting and published as a Letter to the Editor.

In conclusion, the special issue of Drug Testing and Analysis, featuring manuscripts from the SoHT–GTFI meeting in Verona 2022, reflects the remarkable advancements achieved in this field. The manuscripts provide valuable insights into novel analytical techniques, biomarkers, pharmacokinetics, forensic applications, and ethical considerations. As we embrace these advancements, we pave the way for a safer, healthier society, where drug testing and analysis serve as powerful tools in protecting public health and maintaining integrity in various sectors. The research presented in this special issue will undoubtedly shape the future of drug testing and analysis, fostering collaboration and inspiring further innovation in this crucial area of scientific inquiry.


Garrison Drug Testing

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Garrison DNA Testing

DNA testing for legal and non-legal purposes including child support, and child custody around Garrison, TX.

Garrison Industry Training

Including specimen collector training, DER training, reasonable suspicion training and much more in Garrison, TX.v

Garrison Hair Drug Testing

Get fast, accurate hair drug testing at our convenient Garrison, TX locations—results you can trust, every time!

Garrison Alcohol Testing

Fast, reliable alcohol testing to keep your workplace safe and compliant every single day in Garrison, TX.

Garrison Drug Testing Services

Reliable nationwide drug testing services ensuring accuracy, compliance, and quick results for businesses and individuals in Garrison, TX.

Garrison 5 Panel Drug Test

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Garrison On Site Drug Testing

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Garrison DOT Physicals

Certified DOT physicals with quick, reliable exams to keep Garrison, TX drivers compliant and on the road with confidence.

DOT Consortium

Join our DOT consortium for hassle-free compliance, random testing management, and reliable driver safety solutions.


Frequently Asked Questions

A hair follicle drug test analyzes a small sample of hair to detect a history of drug use over time. Because drug metabolites are incorporated into hair as it grows, this method can show patterns of use instead of just recent exposure. It is frequently used for legal and court requirements, long-term monitoring, and high-trust workforce screening.
Standard hair drug testing typically reflects drug use over approximately a 90-day period, based on the length of hair collected at the time of testing. Longer hair can sometimes reflect a longer time frame, and extremely short hair can reduce that window.
Hair drug testing commonly screens for marijuana/THC, cocaine, opiates/opioids, amphetamines/methamphetamines, and PCP. In many cases, additional expanded panels may be requested to include other substances.
Yes. If the donor's head hair is too short or unavailable, body hair may be collected as an alternative. The collector will document the source of the sample. This allows testing even for individuals with recently cut or shaved head hair.
Yes. Hair drug testing is commonly used in court, probation, custody, and compliance matters because the collection process follows a documented chain of custody and the analysis is performed by a certified laboratory. Results are provided in a form that can be reviewed by legal and administrative authorities.
Yes. Individuals, parents, attorneys, employers, and probation programs can all request hair drug testing. A doctor's order is not required. Results are confidential and released only to the authorized requesting party.
Hair testing provides a longer look-back period than urine testing, making it useful when you need to demonstrate ongoing abstinence or identify repeated/recent substance use patterns over time rather than just recent exposure. It is frequently selected for legal, compliance, and custody-related documentation.
A small section of hair is cut by a trained collector in a discreet, controlled manner. The sample is sealed, documented, and sent to the laboratory under established chain-of-custody procedures so that the results can be defended if they are ever challenged.

Customer Reviews

Great experience

Great experience and great lab. Customer service agent was very helpful.

Jenna Bee - 2/19/2025

they have made my job much easier

I always have a good experience setting up company driver drug screens through ADT. I'm really happy I found them while searching online, they have made my job much easier.

Exodus Heath - 2/13/2025

This is by far the easiest

This is by far the easiest way to get my lab work ordered and paid for. The phone calls are short and to the point. They don’t try to push extra sales on you and when I walk in to the clinic I simply show my donor pass and with in a matter of minutes I’m done. I will continue to use ADT in the future.

Jason Jackson - 7/19/2025


(800) 221-4291