Hair Follicle Drug Testing - Woodland, CA

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

30 Hair Drug Testing Centers in Woodland

Minutes Away, Test Today

520 Cottonwood Street, Suite F1.15 miles

520 Cottonwood Street, Suite F
Woodland, CA 95695

1207 Fairchild Ct1.33 miles

1207 Fairchild Ct
Woodland, CA 95695

475 Pioneer Ave Ste 1001.45 miles

475 Pioneer Ave Ste 100
Woodland, CA 95776

632 W Gibson Rd1.54 miles

632 W Gibson Rd
Woodland, CA 95695

3680 Industrial Blvd Ste 550h13.38 miles

3680 Industrial Blvd Ste 550h
West Sacramento, CA 95691

4112 E Commerce Way13.92 miles

4112 E Commerce Way
Sacramento, CA 95834

1550 Harbor Blvd Ste 12014.24 miles

1550 Harbor Blvd Ste 120
West Sacramento, CA 95691

1550 Harbor Blvd Ste 11014.24 miles

1550 Harbor Blvd Ste 110
West Sacramento, CA 95691

1425 Market Ln Ste G15.88 miles

1425 Market Ln Ste G
Dixon, CA 95620

4700 Northgate Blvd Ste 10016.15 miles

4700 Northgate Blvd Ste 100
Sacramento, CA 95834

1614 X St Ste B17.18 miles

1614 X St Ste B
Sacramento, CA 95818

501 Jessie Ave17.37 miles

501 Jessie Ave
Sacramento, CA 95838

2801 L St17.94 miles

2801 L St
Sacramento, CA 95816

1201 Alhambra Blvd Ste 210 Bring Cash For Parking18.14 miles

1201 Alhambra Blvd Ste 210 Bring Cash For Parking
Sacramento, CA 95816

3000 Q St18.15 miles

3000 Q St
Sacramento, CA 95816

1675 Alhambra Blvd Ste B18.23 miles

1675 Alhambra Blvd Ste B
Sacramento, CA 95816

3160 Folsom Blvd18.29 miles

3160 Folsom Blvd
Sacramento, CA 95816

4001 J St18.83 miles

4001 J St
Sacramento, CA 95819

7248 South Land Park Drive, Suite 12018.92 miles

7248 South Land Park Drive, Suite 120
Sacramento, CA 95831

5151 F St19.50 miles

5151 F St
Sacramento, CA 95819

2288 Auburn Boulevard, Suite 10319.87 miles

2288 Auburn Boulevard, Suite 103
Sacramento, CA 95821

1578 Howe Ave20.18 miles

1578 Howe Ave
Sacramento, CA 95825

6409 Folsom Blvd Ste 120.46 miles

6409 Folsom Blvd Ste 1
Sacramento, CA 95819

478 Howe Ave20.76 miles

478 Howe Ave
Sacramento, CA 95825

2129 Hacienda Way Ste H20.79 miles

2129 Hacienda Way Ste H
Sacramento, CA 95825

2016 Morse Ave21.25 miles

2016 Morse Ave
Sacramento, CA 95825

1725 Professional Dr,21.57 miles

1725 Professional Dr,
Sacramento, CA 95825

4811 Chippendale Dr22.72 miles

4811 Chippendale Dr
Sacramento, CA 95841

7275 East South Gate Drive Suite 40922.73 miles

7275 East South Gate Drive Suite 409
Sacramento, CA 95823

1 Quality Dr23.01 miles

1 Quality Dr
Vacaville, CA 95688

Employment, Court Ordered, Probation, Family

Accredited Drug Testing provides comprehensive hair follicle drug assessments in Woodland, California. Whether you require a hair drug or alcohol examination, we have expertise in hair testing, with facilities in every city Nationwide equipped to execute hair tests. Typically, 1.5 to 2 inches of hair from the crown or body can be used. Hair analyses can investigate drugs, alcohol/ETG, or offer tailored hair testing solutions.

Recently, conducting drug screenings has increasingly incorporated hair follicle drug tests. Many workplaces, legal entities, and addiction specialists favor hair tests over the usual urine analyses. Hair follicle tests are favored by employers with strict no-drug policies, judicial systems, and individuals on probation. Their key advantage lies in their ability to detect drug use over a longer period, up to 90 days, often under supervised conditions, making cheating nearly impossible. Yet, for detecting recent drug use within 5 days, urine testing remains more precise.

What it is, How it works

Hair testing is recognized as an effective method for detecting drug and alcohol consumption. It provides an extensive history of drug and alcohol use by locking in biomarkers within the fibers of the hair as it grows. When hair is sampled near the scalp, it can offer a detection window of up to about three months for drugs and alcohol. The process of collecting hair is straightforward, making it hard to tamper with, and convenient to ship.

A 1.5-inch segment consisting of roughly 200 hair strands (approximately the size of a #2 pencil) gathered closest to the scalp yields 100mg of hair, which is the preferred amount for both screening and confirmation. For EtG, additional testing, and/or panels exceeding 10, 150mg of hair is advised. We suggest using a jeweler’s scale to weigh the hair sample. If scalp hair cannot be obtained, a similar quantity of body hair is acceptable. When discussing head hair, we mean only scalp hair. Body hair encompasses all other types of hair (facial, axillary, etc.).

Process Overview

The laboratory procedure for processing a drug test consists of four main steps: Accessioning, Screening, Extraction, and Confirmation.

Accessioning is the first stage, integrating a sample into the lab’s system. This step ensures the sample was properly sealed and shipped, assigns a unique LAN (Laboratory Accessioning Number), and completes any necessary data entry not covered by an electronic chain of custody system.

Screening entails an initial rapid evaluation for drug abuse. Although Screening is cost-efficient for eliminating drug use in most samples, a positive result must be verified for legal admissibility. Samples that show a presumptive positive in Screening require additional confirmation.

Should a sample test presumptively positive in Screening, additional hair is extracted from the original sample and readied for Extraction. Here, drugs are separated from hair at notably lower concentrations compared to other methods (e.g., urine or oral fluid); hence, hair drug screening is regarded as the most challenging method to perform.

Positive screening results are validated using techniques like GC/MS, GC/MS/MS, or LC/MS/MS. Any samples with presumptive positives are cleansed before confirmation, as needed. The comprehensive laboratory process from Accessioning to Confirmation undergoes review under the CAP (College of American Pathologists) Hair designation as well as the accreditation to ISO / IEC 17025 standards.

Advantages of hair drug testing:

  • Extended detection period: Hair drug tests can reveal drug use for up to 90 days, unlike urine tests that have a shorter detection timeframe.
  • Difficulty in falsifying: It is extremely tough to manipulate a hair drug test, ensuring more precise results.
  • Offers historical insight: It can demonstrate a drug usage pattern over time, rather than just recent use.

Limitations:

  • Cannot reveal recent usage: Drugs become detectable in hair approximately 5-7 days after use.
  • Expense: Hair drug tests generally incur higher costs than other drug testing methods.
  • Result variations: Variables like hair color and personal differences in hair growth can influence drug metabolite concentrations within hair.

Note: Commonly misnamed "hair follicle tests", the analysis focuses on the hair strand and not the follicle below the scalp.

Why Hair Follicle Testing Beats Urine Testing

In Woodland, CA, hair follicle testing offers superior advantages over urine testing. Its unmatched detection accuracy makes it the better option for identifying drug use. Traditional urine tests fall short when it comes to long-term analysis. Hair tests provide a broad overview of an individual's history, proving their worth in maintaining a drug-free environment.
Hair tests not only detect a wide range of substances but also eliminate the inconsistencies of urine tests.

Extended Detection Window

Hair follicle testing in Woodland, CA offers an extended detection window, capturing a comprehensive history of substance use for up to 90 days. This prolonged period allows employers and organizations to make informed assessments about an individual's behavioral tendencies. Unlike shorter-term tests, this method paints a full picture of one's lifestyle choices.
This extended window ensures that no recent misuse goes undetected, thereby enhancing the evaluation process.

Tamper-Resistant Testing Method

Hair follicle testing in Woodland, CA provides a tamper-resistant alternative to traditional methods. By using a sample that is difficult to adulterate, the integrity of the test is maintained, offering reliable results. This proves invaluable for employers and authorities seeking indisputable evidence.
The resilience against sample manipulation ensures that stakeholders can trust the outcomes with confidence, reducing the risk of erroneous conclusions.

Convenient Nationwide Locations

With convenient testing locations across Woodland, CA and nationwide, accessing hair follicle drug tests is streamlined. Ensuring quick, hassle-free services, our centers are designed for accessibility and efficiency. Whether local or traveling, clients benefit from the network of facilities providing top-notch support.
The widespread availability of our centers guarantees that all testing needs are met promptly, anytime, anywhere.

Simple, Confidential Process

In Woodland, CA, the process of ordering, conducting, and receiving hair follicle test results is straightforward and private. Our streamlined approach ensures confidentiality at each step, addressing the concerns of those seeking discretion. The ease of use from start to finish guarantees a stress-free experience.
This commitment to privacy and simplicity makes hair testing a preferred choice for employers and private individuals alike.

Affordable, Fast Turnaround

Offering competitive pricing and rapid turnaround in Woodland, CA, hair follicle testing delivers significant value to businesses of all sizes. Our cost-effective structures ensure affordability while maintaining high-quality results. Quick processing times mean less waiting and more action-oriented feedback.
The blend of affordability and efficiency positions this method as the go-to option for companies prioritizing effective resource management.

Fast, Accurate, and Reliable Results

The precision and swiftness of hair follicle drug tests in Woodland, CA are unparalleled. This method boasts exceptional accuracy, making it a preferred choice for identifying substance consumption patterns with dependable results. Furthermore, the rapid processing time ensures that individuals and organizations receive fast insights, paving the way for informed decisions.
When it comes to ensuring accuracy and quick returns, hair testing surpasses traditional methods, giving stakeholders the assurance they need.

Compliance and Peace of Mind for Employers

Employers in Woodland, CA can find compliance and assurance through hair follicle testing. This method aligns with workplace drug-free protocols, thereby minimizing legal risks and fostering a safe work environment. It offers peace of mind by ensuring that team members adhere to organizational standards.
Adopting this testing approach not only instills discipline but also boosts morale by maintaining a healthy workplace 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.


Woodland Drug Testing

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

Woodland DOT Drug Testing

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

Woodland DNA Testing

DNA testing for legal and non-legal purposes including child support, and child custody around Woodland, CA.

Woodland Industry Training

Including specimen collector training, DER training, reasonable suspicion training and much more in Woodland, CA.v

Woodland Hair Drug Testing

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

Woodland Alcohol Testing

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

Woodland Drug Testing Services

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

Woodland 5 Panel Drug Test

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

Woodland 10 Panel Drug Test

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

Woodland On Site Drug Testing

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

Woodland DOT Physicals

Certified DOT physicals with quick, reliable exams to keep Woodland, CA 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

Thank You!!

I needed a quick drug test for visitation with my children. I called at 6am they answered and set me up with a place a couple miles from my house to go get the test done, that was on Wednesday, I had the results on Friday afternoon and was able to see my kids on Saturday. Thank you for the help!

Mark Broadhead - 2/12/2025

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

Very professional and very quick

Very professional and very quick service to schedule appointments! I am pleased with the services and would definitely recommend using them for any drug testing needs!

Carrie Feerick - 4/19/2025


(800) 221-4291