Hair Follicle Drug Testing - Gary, MN

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

With 32 testing centers in the Gary 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 Gary

Minutes Away, Test Today

201 9th St W

13.30 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
201 9th St W
Ada, MN 56510

250 Cleveland Ave Sw

25.43 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
250 Cleveland Ave Sw
Mcintosh, MN 56556

900 Hillgoss Bvld Se

27.73 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
900 Hillgoss Bvld Se
Fosston, MN 56542

900 Hilligoss Blvd Se

28.28 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
900 Hilligoss Blvd Se
Fosston, MN 56542

323 S Minnesota St

32.25 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
323 S Minnesota St
Crookston, MN 56716

400 S Minnesota St

32.25 mi
🕑 Testing Hours: Mon–Fri: 8:00 AM-3:00 PM✓ Walk-in with Electronic Donor Pass
400 S Minnesota St
Crookston, MN 56716

105 International Dr Ste 25

34.80 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
105 International Dr Ste 25
Red Lake Falls, MN 56750

12 3rd St Se Po Box 609

35.05 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
12 3rd St Se Po Box 609
Hillsboro, ND 58045

15334 17th Avenue N

36.99 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
15334 17th Avenue N
Felton, MN 56536

3210 Highway 75 N

39.15 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3210 Highway 75 N
Moorhead, MN 56560

1100 19th Ave N Ste R1

40.66 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1100 19th Ave N Ste R1
Fargo, ND 58102

720 4th St N

41.52 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
720 4th St N
Fargo, ND 58122

203 4th St Nw

41.84 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
203 4th St Nw
Bagley, MN 56621

1361 Wenner Rd

41.97 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1361 Wenner Rd
Detroit Lakes, MN 56501

45107 151st Ave

42.24 mi
🕑 Testing Hours: ✓ Walk-in with Electronic Donor Pass
45107 151st Ave
Clearbrook, MN 56634

3838 12th Ave N

42.85 mi
🕑 Testing Hours: ✓ Walk-in with Electronic Donor Pass
3838 12th Ave N
Fargo, ND 58102

213 State St

42.93 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
213 State St
Detroit Lakes, MN 56501

3002 1st Ave N

43.05 mi
🕑 Testing Hours: ✓ Walk-in with Electronic Donor Pass
3002 1st Ave N
Fargo, ND 58102

3030 Main Ave

43.17 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3030 Main Ave
Fargo, ND 58103

125 Frazee St E

43.23 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
125 Frazee St E
Detroit Lakes, MN 56501

1027 Washington Ave

43.25 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1027 Washington Ave
Detroit Lakes, MN 56501

825 25th St S

43.48 mi
🕑 Testing Hours: Mon–Fri: 8:30 AM-12:30 PM & 2:00 PM-3:30 PM✓ Walk-in with Electronic Donor Pass
825 25th St S
Fargo, ND 58103

1245 Washington Ave

43.63 mi
🕑 Testing Hours: ✓ Walk-in with Electronic Donor Pass
1245 Washington Ave
Detroit Lakes, MN 56501

1702 University Dr S

43.83 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1702 University Dr S
Fargo, ND 58103

3019 13th Ave S

44.00 mi
🕑 Testing Hours: Mon–Fri: 9:00 AM-4:30 PM✓ Walk-in with Electronic Donor Pass
3019 13th Ave S
Fargo, ND 58103

305 3rd Ave Sw

44.87 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
305 3rd Ave Sw
Clearbrook, MN 56634

1517 32nd Ave S

45.10 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1517 32nd Ave S
Fargo, ND 58103

1401 13th Ave E

45.40 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
1401 13th Ave E
West Fargo, ND 58078

3101 39th St S Ste C

46.01 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
3101 39th St S Ste C
Fargo, ND 58104

4622 40th Ave S

47.64 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
4622 40th Ave S
Fargo, ND 58104

730 Main St E

49.80 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
730 Main St E
Mayville, ND 58257

600 1st St Se

49.89 mi
🕑 Mon–Fri: 8:00 AM – 4:00 PM✓ Walk-in with Electronic Donor Pass
600 1st St Se
Mayville, ND 58257

Employment, Court Ordered, Probation, Family

Accredited Drug Testing offers comprehensive hair follicle drug testing in Gary, Minnesota. If a hair or alcohol drug test is required, Accredited Drug Testing is the expert in hair analysis, with testing facilities across the nation to conduct these tests. Generally, 1.5 to 2 inches of hair from the head or body can be tested. Hair analysis can detect drugs, alcohol/ETG, or other specialized scenarios.

The trend in drug testing has increasingly adopted the hair follicle method. Offenders in court cases, employers, and professionals in substance abuse favor hair over urine tests. Hair testing supports employers' strict no-drug policies, courts, and probationary checks. It provides a longer detection timeframe, typically up to 90 days, conducted under supervision, making it difficult to alter results. For recent use within 5 days, urine analysis remains unmatched.

What it is, How it works

Hair analysis is now recognized as an effective method for identifying drug and alcohol consumption. Hair captures long-term evidence of alcohol and drug use by embedding biomarkers within its fibers as it grows. When taken from near the scalp, hair can offer a detection range of up to around 3 months for alcohol and drugs. Hair collection is straightforward, not easily tampered with, and simple to transport.

A 1.5-inch segment comprising about 200 strands (comparable to the thickness of a #2 pencil) from the closest point to the scalp provides around 100mg of hair, which is the optimal amount for both screening and confirmation. For EtG, additional panels, or tests exceeding 10 panels, 150mg of the sample is preferred. It’s advisable to weigh the sample on a jeweler’s scale. If there's no scalp hair available, a similar amount of body hair can be used. References to head hair are specific to scalp hair, whereas body hair encompasses all other categories (such as facial or axillary hair).

Process Overview

The lab processing for a drug test result involves four key stages: Accessioning, Screening, Extraction, and Confirmation.

During Accessioning, a sample is initially processed within a lab’s system. This process involves ensuring the sample’s seal and shipment were intact, assigning a random LAN (Laboratory Accessioning Number), and completing any necessary data entry not previously handled by an electronic custody chain system.

Screening is a preliminary rapid check for drugs of abuse. Although Screening is an economical means to discard drug use for most samples, a positive result requires confirmation to be valid in legal settings. Any samples with a presumptively positive result during Screening need a secondary confirmation.

Should a sample test presumptively positive in Screening, additional hair from the original sample is prepped for Extraction. In this phase, substances are extracted from hair at much lower concentrations than other methods (such as urine or oral samples), making hair drug screening the most complex methodology to execute.

Final Confirmation of any positive screening result is executed using GC/MS, GC/MS/MS, or LC/MS/MS. All presumptive samples undergo washing before confirmation if required. The complete lab procedure from Accessioning to Confirmation undergoes review under both the CAP (College of American Pathologists) Hair classification and the accreditation adhering to ISO / IEC 17025 standards.

Advantages of hair drug testing:

  • Extended detection period: Hair drug tests can trace drug use up to 90 days, surpassing the shorter detection range of urine tests.
  • Hard to manipulate: The integrity of a hair drug test is high, making it challenging to deceive the results.
  • Yields historical analysis: It can illustrate a pattern of drug consumption over time rather than recent usage alone.

Limitations:

  • Cannot spot recent usage: It takes about 5-7 days for drugs to appear in hair strands.
  • Expense: Hair drug tests typically incur higher costs compared to alternative drug testing techniques.
  • Disparities in results: Aspects such as hair color and individual differences in hair growth may influence drug metabolite concentration in the hair.

Note: Commonly termed "hair follicle tests", the analysis targets the hair strand and not the follicle beneath the scalp.

Why Hair Follicle Testing Beats Urine Testing

Hair follicle tests surpass urine tests in Gary, MN by offering superior detection accuracy and reliability. Hair tests are less invasive and can uncover long-term drug use, winning the preference of many employers. The extended detection period of hair analysis makes it outstandingly comprehensive compared to traditional urine tests.

Extended Detection Window

In Gary, MN, hair follicle tests have the advantage of an extended detection window, uncovering drug use up to 90 days back. This long-term insight aids employers in understanding an individual's substance history beyond the scope of traditional testing methods, enhancing the evaluation of applicants and employees.

Tamper-Resistant Testing Method

Gary, MN values the tamper-proof nature of hair follicle drug testing that minimizes sample adulteration. The method ensures the integrity of the results, making it nearly impossible to manipulate. Hair testing stands out for its resistance to tampering, guaranteeing honest and dependable outcomes.

Convenient Nationwide Locations

Our nationwide testing facilities, including those in Gary, MN, provide seamless and accessible testing services. The widespread availability allows individuals to quickly locate a center and enjoy an efficient, hassle-free testing experience, reflecting our commitment to convenience.

Simple, Confidential Process

The process for ordering, conducting, and receiving hair test results in Gary, MN is straightforward and confidential. Ensuring privacy and simplicity, the procedure addresses concerns for anonymous testing, delivering a seamless experience from start to finish.

Affordable, Fast Turnaround

In Gary, MN, our competitive pricing and rapid turnaround for hair tests offer excellent value. Businesses benefit from quick results and economical solutions, ensuring top-notch service that keeps pace with organizational needs without compromising on quality.

Fast, Accurate, and Reliable Results

The accuracy and speed of hair follicle testing in Gary, MN are unmatched. These tests provide rapid results, ensuring a reliable measure of substance use detection. Hair tests offer higher precision, identifying drug usage that might not be visible through other testing methods. They deliver fast, dependable outcomes that are crucial for critical decision-making.

Compliance and Peace of Mind for Employers

Hair follicle testing in Gary, MN contributes to compliance with drug-free workplace policies, offering peace of mind for employers. The reliable results decrease legal liability and boost workplace safety, underscoring the importance and effectiveness of comprehensive substance screening.

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.


Gary Drug Testing

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Gary DNA Testing

DNA testing for legal and non-legal purposes including child support, and child custody around Gary, MN.

Gary Industry Training

Including specimen collector training, DER training, reasonable suspicion training and much more in Gary, MN.

Gary Hair Drug Testing

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

Gary Alcohol Testing

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

Gary Drug Testing Services

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

Gary 5 Panel Drug Test

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

Gary 10 Panel Drug Test

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

Gary On Site Drug Testing

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

Gary DOT Physicals

Certified DOT physicals with quick, reliable exams to keep Gary, MN 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

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

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

Unbelievably fast and Easy

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

Ren Wisby - 4/19/2025

Very Fun and Easy

Trish last week and Tatiana this week, very fun and easy folks to deal with. Well be using them more and more in the future.

Tom O - 12/19/2024

Accredited has been wonderful to work with!

Accredited has been wonderful to work with! My court ordered tests are on a very strange schedule but every time I call, they are quick to schedule me and are always able to find a location that works for where I’m at and when! Thank you for making this rather undesirable situation less stressful and efficient.

Madison Sanderford - 8/19/2024

test was quick and easy

Company New Hire Employee Process for DOT Drug test was quick and easy. No need to make appt. All employee had to do is show prepaid qr code I sent to employee show ID and was set. Would Recommend.

Maria Lopez - 11/19/2024

Very easy to get scheduled

Very easy to get scheduled and easy process once checked in and the staff were all extremely friendly! I would recommend this company!

Ronickia Moore - 11/19/2024

Explained everything so no questions

Torin was great. Explained everything so no questions

Tony Lombardo - 4/18/2025

Fantastic Experience

Fantastic experience from the beginning. Jocelyn was very helpful to me as someone who doesn’t have much experience in needing a test. They were very helpful and walked me through the entire process start to finish. Thank you ADT!

Riley Wilson - 2/18/2025

Pretty Straightforward

It was a pretty straightforward process getting an appointment and making payment. Getting to the testing site was quick. I was in and out in no time.

Sadiat Ogunyemi - 12/19/2024


(800) 221-4291