Hair Follicle Drug Testing - Diana, TX

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

With over 30 testing centers in the Diana 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.

32 Hair Drug Testing Centers in Diana

Minutes Away, Test Today

3202 N 4th St Ste 100

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

1509 W Loop 281

12.60 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

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

815 N 4th St Ste D

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

206 E Us Highway 80 Ste F

13.71 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

3008 W Marshall Ave

14.20 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

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

700 E Marshall Ave

14.45 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,

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

409 N 6th St

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

712 N Wood St

15.44 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
712 N Wood St
Gilmer, TX 75644

450 E Loop 281 Ste C2

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

307 W Upshaw Ave

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

12605 I H 20 S Service Rd W

18.01 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

201 E 2nd

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

2755 State Highway 322

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

106 E Gilmer St

22.54 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
106 E Gilmer St
Big Sandy, TX 75755

1121 N Longview St

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

2701 Us Highway 271 N

24.93 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2701 Us Highway 271 N
Pittsburg, TX 75686

614 S Grove St

25.06 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

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

302 Little Ln

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

500 Harper Dr

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

402 N Kaufman St

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

1610 S Jefferson Ave

32.22 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1610 S Jefferson Ave
Mount Pleasant, TX 75455

727 E Ferguson Rd

32.34 mi
🕑 Testing Hours: ✓ Walk-in with Electronic Donor Pass
727 E Ferguson Rd
Mt Pleasant, TX 75455

11937 Us Highway 271

32.94 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
11937 Us Highway 271
Tyler, TX 75708

901 N Jefferson Ave

33.78 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
901 N Jefferson Ave
Mount Pleasant, TX 75455

13239 Fm 782 N

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

2001 N Jefferson Ave

34.55 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2001 N Jefferson Ave
Mount Pleasant, TX 75455

2001 N Jefferson Ave

34.61 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2001 N Jefferson Ave
Mt Pleasant, TX 75455

719 W Coke Rd

36.08 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
719 W Coke Rd
Winnsboro, TX 75494

Employment, Court Ordered, Probation, Family

At Accredited Drug Testing, comprehensive hair follicle drug testing is available in Diana, Texas. Whether it’s for drug or alcohol detection, our specialty in hair testing is supported by a national network of testing facilities. Typically requiring 1.5 to 2 inches of hair from the scalp or body, hair tests can detect drugs, alcohol/ETG, among other options.

Recently, drug testing increasingly utilizes hair follicle tests over urine tests. Employers, legal systems, and substance abuse experts favor hair tests for their zero-tolerance and probation cases. The primary advantage is the extended detection window of about 90 days, through an observed collection, making it hard to tamper with. Yet, for drug use within five days, urine tests remain precise.

What it is, How it works

Hair analysis has become recognized as an effective method for identifying substance and alcohol consumption. Hair can archive long-term evidence of drug and alcohol use by capturing biomarkers within the strands of hair as they grow. When sampled near the scalp, hair can offer a detection timeframe for substances of up to around three months. The process of obtaining hair is straightforward, the chances for tampering are low, and it’s convenient to transport.

A hair specimen measuring 1.5 inches with roughly 200 strands (approximately the width of a #2 pencil), cut close to the scalp, yields 100mg of hair, the preferred quantity for analysis and validation. For tests involving EtG, additional substances, or panels beyond 10, 150mg of hair is needed. Measuring the sample with a jeweler's scale is advisable. In cases where scalp hair is not available, the collection of an equivalent body hair sample is permitted. References to head hair strictly concern scalp hair, while body hair encompasses all other types of hair (facial, armpit, etc.).

Process Overview

The laboratory analysis of a drug test outcome comprises four central phases: Accessioning, Screening, Extraction, and Confirmation.

Accessioning refers to the initial phase where a sample is integrated into the laboratory system. This step ensures that the sample is sealed and transported correctly, a unique LAN (Laboratory Accessioning Number) is assigned, and any extra data entry required by electronic chain of custody systems is completed.

Screening offers a preliminary rapid assessment for drug presence. Although it's an economical method to exclude drug use in most samples, any positive findings from Screening must be substantiated for use in legal proceedings. Samples identified with potential positives require further verification through a distinct confirmation stage.

Should a sample demonstrate potential positivity during Screening, additional hair is sourced from the primary sample for the Extraction phase. Here, drugs are isolated from hair at notably lower concentrations than other methods (like urine or oral fluid), which explains the complexity of conducting tests on hair samples.

Validation of any favorable Screening outcomes is performed using GC/MS, GC/MS/MS, or LC/MS/MS techniques. To ensure accuracy, all samples preliminarily marked as positive are washed before confirmation. The full laboratory sequence from Accessioning to Confirmation is reviewed following both the CAP (College of American Pathologists)'s Hair certification and the ISO / IEC 17025 credentials.

Advantages of hair drug testing:

  • Extended detection range: Hair drug analysis can recognize drug usage up to 90 days earlier, unlike urine tests which offer a shorter detection period.
  • Hard to manipulate: Altering the outcome of a hair drug analysis is nearly impossible, thus the findings are more reliable.
  • Offers historical insight: It can illustrate a record of drug consumption over an extended span, rather than just recent activity.

Limitations:

  • Cannot detect immediate use: Substances take about 5-7 days post-ingestion to appear in hair.
  • Expense: Hair drug assessments are typically more costly than alternative testing techniques.
  • Diverse results: Variables such as hair color and individual hair growth differences can impact drug metabolite concentrations in hair.

Note: Commonly termed as "hair follicle tests", the actual process examines the hair strand, not the follicle beneath the skin.

Why Hair Follicle Testing Beats Urine Testing

For residents and employers in Diana, TX, hair follicle tests offer superior drug detection compared to traditional urine tests. Unlike urine tests, hair samples can reveal drug use over extended periods, capturing a more accurate and detailed consumption history. This method reduces false negatives, ensuring results reflect actual usage.

Many find the accuracy of hair testing more trustworthy, as it minimizes manipulation chances and offers dependable insight, fostering better decisions.

Extended Detection Window

Hair follicle testing in Diana, TX, offers an extended detection window, identifying drug use for up to 90 days. This wide span provides employers with a thorough view of the individual's substance history, revealing consistent usage patterns that may influence hiring or retention decisions.

The extensive detection window enhances the understanding of long-term habits, supplementing random testing strategies with in-depth insights into employee conduct.

Tamper-Resistant Testing Method

In Diana, TX, hair follicle testing significantly decreases the opportunity for tampering, providing more reliable and undeniable results. Unlike other methods where samples might be manipulated, the collection and analysis of hair ensure that the integrity of the test remains uncompromised.

This steadfast reliability makes hair follicle tests a trusted choice for many, ensuring that results are both accurate and unquestionable, fostering confidence in the testing process.

Convenient Nationwide Locations

Our extensive network of testing sites offers unparalleled convenience across Diana, TX, and nationwide. With accessible local centers, scheduling and undergoing a hair follicle drug test becomes straightforward and efficient.

This network ensures that individuals and companies benefit from hassle-free access to reliable testing services, reinforcing the commitment to clean and safe environments through effortless means.

Simple, Confidential Process

In Diana, TX, the process of undergoing a hair follicle drug test is both straightforward and confidential, addressing common privacy concerns. From ordering to receiving results, the process is streamlined to enhance user experience and safeguard sensitive information.

This simplicity ensures that individuals remain at ease, prioritizing both their convenience and privacy throughout the testing journey, fostering assurance in the system.

Affordable, Fast Turnaround

Hair follicle drug tests in Diana, TX, offer competitive pricing paired with swift result turnaround times. This combination delivers great value for businesses of any size, ensuring that drug testing remains accessible and effective without straining budgets.

Employers gain peace of mind from knowing their employees are in a committed drug-free environment, enhanced further by affordable and prompt services, making it an attractive option for all.

Fast, Accurate, and Reliable Results

In Diana, TX, hair follicle drug tests are recognized for their speed and accuracy. The results from these tests are both fast and reliable, providing clarity on substance use. Their precision offers insight into current or past drug usage, ensuring that individuals receive trustworthy feedback.

This rapid testing process ensures that the information gathered is both accurate and timely, making it a preferred choice for many looking to identify substance use efficiently.

Compliance and Peace of Mind for Employers

Employers in Diana, TX, achieve compliance and tranquility by implementing hair follicle drug testing. This method ensures adherence to drug-free workplace policies, mitigating legal risks and improving the safety of the work environment. The reliable results contribute to a culture of accountability and trust among employees.

By adopting such accurate testing, employers can uphold high standards, reducing liabilities and promoting a drug-free workspace, which leads to a more productive workforce.

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.


Diana Drug Testing

Quickly find trusted local drug testing centers in Diana, TX — fast, convenient, and reliable every time!

Diana DOT Drug Testing

Quickly find a local DOT drug testing center in Diana, TX — fast, reliable, convenient nationwide service!

Diana DNA Testing

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

Diana Industry Training

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

Diana Hair Drug Testing

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

Diana Alcohol Testing

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

Diana Drug Testing Services

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

Diana 5 Panel Drug Test

Accurate 5 panel drug testing with fast, confidential results—trusted by Diana, TX employers and individuals nationwide.

Diana 10 Panel Drug Test

Comprehensive 10 panel drug testing with fast, reliable results—trusted for Diana, TX workplace and personal testing needs.

Diana On Site Drug Testing

Convenient on-site mobile drug testing with fast, reliable results—saving time while keeping your Diana, TX workplace compliant.

Diana DOT Physicals

Certified DOT physicals with quick, reliable exams to keep Diana, 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

Extremely polite

They were very fast extremely polite walked you through every detail of the process if you had any questions they had no problems answering

Billy Williams - 2/19/2025

Really Helpful

I am just really happy to see that the location near me still offers hair follicle tests!! They are really helpful when any false positives happen, waiting on my results. Hope they come fast!

Kali Collins - 1/16/2025

A very nice company

A very nice company of expertise. The staff will go above to help you out of your situation in a timely matter 👏

Tam Jack - 2/19/2025


(800) 221-4291