Hair Follicle Drug Testing - Devine, TX

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

With 39 testing centers in the Devine 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.

39 Hair Drug Testing Centers in Devine

Minutes Away, Test Today

1501 Houston St

14.69 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1501 Houston St
Castroville, TX 78009

3100 Avenue E

19.27 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3100 Avenue E
Hondo, TX 78861

320 Berry Ranch Rd

19.88 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
320 Berry Ranch Rd
Pearsall, TX 78061

325 N Cherry St

20.49 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
325 N Cherry St
Pearsall, TX 78061

158 Medical Dr

21.11 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
158 Medical Dr
Pearsall, TX 78061

2200 S Interstate 35

22.11 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2200 S Interstate 35
Pearsall, TX 78061

1905 Highway 97 E

24.99 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1905 Highway 97 E
Jourdanton, TX 78026

9727 Poteet Jourdanton Fwy Ste 105

25.27 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
9727 Poteet Jourdanton Fwy Ste 105
San Antonio, TX 78211

9727 Poteet Jourdanton Fwy Ste 101

25.27 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
9727 Poteet Jourdanton Fwy Ste 101
San Antonio, TX 78211

7390 Barlite Blvd Ste 135

26.21 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
7390 Barlite Blvd Ste 135
San Antonio, TX 78224

7400 Barlite Blvd

26.24 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
7400 Barlite Blvd
San Antonio, TX 78224

3903 Wiseman Blvd Suite 219

26.55 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3903 Wiseman Blvd Suite 219
San Antonio, TX 78251

1105 Oak St Ste A

26.64 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1105 Oak St Ste A
Jourdanton, TX 78026

115 Duncan Dr

26.77 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
115 Duncan Dr
San Antonio, TX 78226

3015 General Hudnell Dr

26.92 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3015 General Hudnell Dr
San Antonio, TX 78226

2106 W Oaklawn Rd

27.30 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2106 W Oaklawn Rd
Pleasanton, TX 78064

2406 Commercial Ave Ste 111

27.72 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2406 Commercial Ave Ste 111
San Antonio, TX 78221

110 Preston St

28.15 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
110 Preston St
Pleasanton, TX 78064

1504 2nd St

28.23 mi
🕑 Testing Hours: Mon–Fri: 8:00 AM-5:00 PM✓ Walk-in with Electronic Donor Pass
1504 2nd St
Pleasanton, TX 78064

310 W Oaklawn Rd

28.27 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
310 W Oaklawn Rd
Pleasanton, TX 78064

4436 Culebra Rd Ste 3

28.40 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
4436 Culebra Rd Ste 3
San Antonio, TX 78228

201 S Main St

28.40 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
201 S Main St
Pleasanton, TX 78064

1713 E State Highway 97

28.59 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1713 E State Highway 97
Pleasanton, TX 78064

6100 Bandera Road, Suite 400

29.85 mi
🕑 Testing Hours: Mon–Fri: 8:30 AM-4:00 PM✓ Walk-in with Electronic Donor Pass
6100 Bandera Road, Suite 400
San Antonio, TX 78238

6430 Bandera Rd Ste 98

29.98 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
6430 Bandera Rd Ste 98
San Antonio, TX 78238

5720 Bandera Rd Ste 14

30.00 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
5720 Bandera Rd Ste 14
San Antonio, TX 78238

4241 Woodcock Dr Ste A125

31.33 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
4241 Woodcock Dr Ste A125
San Antonio, TX 78228

4130 S New Braunfels Ave Ste 112

31.44 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
4130 S New Braunfels Ave Ste 112
San Antonio, TX 78223

3103 S.e. Military Dr Ste 104

31.51 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3103 S.e. Military Dr Ste 104
San Antonio, TX 78223

343 W Houston St Ste 308

31.57 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
343 W Houston St Ste 308
San Antonio, TX 78205

2040 Babcock Rd Ste 101

31.73 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2040 Babcock Rd Ste 101
San Antonio, TX 78229

2040 Babcock Rd Ste 303

31.73 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
2040 Babcock Rd Ste 303
San Antonio, TX 78229

5282 Medical Dr Ste 190

31.85 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
5282 Medical Dr Ste 190
San Antonio, TX 78229

9234 N Loop 1604 W Ste 110

32.00 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
9234 N Loop 1604 W Ste 110
San Antonio, TX 78249

710 Augusta St

32.28 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
710 Augusta St
San Antonio, TX 78215

400 E Quincy St

32.29 mi
🕑 Testing Hours: Mon–Fri: 8:00 AM-8:00 PM✓ Walk-in with Electronic Donor Pass
400 E Quincy St
San Antonio, TX 78215

14050 Southton Rd Ste 100

32.35 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
14050 Southton Rd Ste 100
Elmendorf, TX 78112

1303 Mccullough Ave Ste 136,

32.44 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1303 Mccullough Ave Ste 136,
San Antonio, TX 78212

1200 Brooklyn Ave Ste 165

32.48 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1200 Brooklyn Ave Ste 165
San Antonio, TX 78212

Employment, Court Ordered, Probation, Family

Accredited Drug Testing offers comprehensive hair follicle drug testing in Devine, Texas. For those needing hair drug or alcohol tests, our expertise in hair testing is unmatched, with nationwide testing facilities capable of conducting such tests. A hair length of 1.5 to 2 inches on the head or body is usually required. Our hair tests can screen for drugs, alcohol/ETG, or other tailored testing options.

Recently, hair follicle drug tests have become a preferred method for drug screening. Employers, courts, and Substance Abuse professionals now often opt for these tests over traditional urine tests. Hair tests are invaluable for entities with zero-tolerance policies, courts, and probation cases due to their longer drug detection period of up to 90 days and their nearly impossible-to-tamper nature. Conversely, urine tests remain most effective for drug use detection within the past five days.

What it is, How it works

Hair analysis has emerged as an effective means for identifying drug and alcohol consumption. Hair strands capture a prolonged history by embedding biomarkers within the growing fibers. When strands are gathered near the scalp, they can provide a drug and alcohol detection range of around three months. Collecting hair is straightforward, tricky to tamper with, and convenient to transport.

A segment of hair measuring 1.5 inches, comprising roughly 200 strands, nearest the scalp yields 100mg, considered the ideal quantity for both screening and confirmation. For EtG, additional tests, or panels exceeding ten, a 150mg sample is preferred. It's advisable to use a jeweler’s scale to weigh the sample. If scalp hair isn't available, an equivalent amount of body hair can be obtained. By head hair, we mean only the scalp hair, while body hair includes all other types (facial, axillary, etc.).

Process Overview

The primary steps in lab processing of drug test results are Accessioning, Screening, Extraction, and Confirmation.

Accessioning involves entering a sample into the lab’s system. This step includes checking the sealing and shipping of the sample, assigning a random LAN (Laboratory Accessioning Number), and updating any missing data not included by an electronic chain of custody system.

Screening conducts an initial rapid drug abuse check. Though Screening is cost-effective to exclude the majority of drug use cases, a positive result requires confirmation for court validation. Samples preliminarily positive during Screening need additional confirmation.

For samples presumptively positive in Screening, further hair is isolated from the original sample for Extraction. Here, drug extraction from hair occurs at a much lower concentration than other methods (like urine or oral fluid), making hair screening the most challenging methodology.

GC/MS, GC/MS/MS, or LC/MS/MS confirm any positive screening results. Necessary washing of presumptive positive samples occurs before confirmation. From Accessioning to Confirmation, the lab process adheres to the CAP (College of American Pathologists) Hair category and ISO/IEC 17025 accreditation standards.

Advantages of hair drug testing:

  • Extended detection period: Hair tests identify drug use up to 90 days, unlike urine tests with shorter detection periods.
  • Hard to deceive: Hair tests resist tampering, enhancing result reliability.
  • Reveals historical usage: Demonstrates a drug usage pattern over time rather than recent intake alone.

Limitations:

  • Cannot detect recent intake: Drugs become detectable in hair approximately 5-7 days post-use.
  • Expense: Hair testing generally costs more than alternate drug testing methods.
  • Result variability: Factors like hair color and growth variability can influence drug metabolite concentration.

Note: Although termed "hair follicle tests", the analysis focuses on the hair strand itself, not the follicle beneath the scalp.

Why Hair Follicle Testing Beats Urine Testing

Why Hair Follicle Testing Beats Urine Testing in Devine, TX: Hair tests provide superior detection accuracy and reliability compared to traditional urine tests. They offer a comprehensive insight into an individual's substance history, consistently outperforming urine tests in identifying drug use over extended periods.

Extended Detection Window

Extended Detection Window in Devine, TX: Hair follicle testing is effective in detecting drug use for up to 90 days, providing employers with an extensive overview of a candidate or employee's substance history. This long detection window helps in making informed hiring decisions.

Tamper-Resistant Testing Method

Tamper-Resistant Testing Method in Devine, TX: Hair follicle tests minimize the risk of tampering, ensuring the results are reliable and unquestionable. This integrity is vital, especially where accuracy in drug testing is non-negotiable.

Convenient Nationwide Locations

Convenient Nationwide Testing Locations and Local Locations in Devine, TX: With an extensive network of testing centers nationwide, accessing drug testing services becomes quick and effortless. This vast reach underscores the convenience available to clients nationwide and locally.

Simple, Confidential Process

Simple, Confidential Process in Devine, TX: Our drug testing process is straightforward and private. From ordering to taking the test and receiving the results, every step safeguards privacy, ensuring a hassle-free experience for all participants.

Affordable, Fast Turnaround

Affordable Pricing and Fast Turnaround in Devine, TX: With competitive pricing and rapid turnaround times, our hair testing services promise excellent value. Businesses of all sizes benefit from our cost-effective solutions and prompt result delivery.

Fast, Accurate, and Reliable Results

Fast, Accurate, and Reliable Results in Devine, TX highlight the efficiency of hair follicle drug tests. The precision with which these tests detect substance use ensures high accuracy, offering quick results that employers and individuals can rely on confidently. This testing method stands out for its speed and dependability.

Compliance and Peace of Mind for Employers

Compliance and Peace of Mind for Employers in Devine, TX: Hair follicle testing supports adherence to workplace drug-free policies, reducing potential legal risks and enhancing workplace safety. Employers can maintain assurance knowing they are in compliance.

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.


Devine Drug Testing

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

Devine DOT Drug Testing

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

Devine DNA Testing

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

Devine Industry Training

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

Devine Hair Drug Testing

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

Devine Alcohol Testing

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

Devine Drug Testing Services

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

Devine 5 Panel Drug Test

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

Devine 10 Panel Drug Test

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

Devine On Site Drug Testing

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

Devine DOT Physicals

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

Super Helpful

Detricia was super helpful in making sure that the drug test is sent my worker for was the right one I needed for my company to be compliant with my customers drug test requirements.

Kevin Howell - 12/19/2024

Fast and efficient service

Fast and efficient service for employers wanting to do pre employment drug screening that meets DOT requirements!!

Mary Thomas - 4/5/2025

Very helpful

They were very helpful in finding a place to get tested on the route back home! They made a difficult time seem easy with no judgement!

Anne Creden - 11/19/2024

ADT was able to get me the best tests

Dealing with allegation’s of drug use that completely false is stressful, ADT was able to get me the best tests, going back the farthest in the same day with as little hassle as possible, I spoke with 1 person and wasn’t transferred once, and they took my payment, and got me my work order for a clinic as close as possible for the service I needed. 5*

Christopher Hansis - 12/19/2024

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

Super Easy to Schedule

Super easy to schedule and get what you need, weather for a job, personal, or court ordered! I believe I spoke with Justine who was helpful in answering all my questions and stayed on the phone with me until she was sure I was all set and got the emails I needed.

Mandy Ryan - 12/14/2024

Saved My CDL!

Time was running out before my Cdl got downgraded because of a violation I had on clearinghouse. I couldn't find an employer to send me for my return to duty test, but these guys had my test scheduled and done in the same day! They saved my cdl. Thank you again!

Michael Williams - 12/2/2024

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

Unbelievably fast and Easy

Unbelievably fast and Easy, I wont be using Any other provider from now on.

Ren Wisby - 4/19/2025

Super Easy!

Super easy to set up an appointment through the phone. They walked me through all the steps and found me a location right near my house. Would definitely recommend!

Aldita Lumaj - 1/17/2025


(800) 221-4291