Hair Follicle Drug Testing - East Contra Costa, CA

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

33 Hair Drug Testing Centers in East Contra Costa

Minutes Away, Test Today

1181 Central Boulevard, Suite C1.00 miles

1181 Central Boulevard, Suite C
Brentwood, CA 94513

3901 Walnut Blvd Ste A-21.19 miles

3901 Walnut Blvd Ste A-2
Brentwood, CA 94513

2400 Balfour Rd Ste 2302.05 miles

2400 Balfour Rd Ste 230
Brentwood, CA 94513

4501 Sand Creek Rd3.31 miles

4501 Sand Creek Rd
Antioch, CA 94531

3450 Hillcrest Ave4.22 miles

3450 Hillcrest Ave
Antioch, CA 94531

3901 Lone Tree Way5.37 miles

3901 Lone Tree Way
Antioch, CA 94509

3400 Delta Fair Blvd9.01 miles

3400 Delta Fair Blvd
Antioch, CA 94509

2339 Buchanan Rd9.02 miles

2339 Buchanan Rd
Antioch, CA 94509

1251 California Ave Ste 60010.84 miles

1251 California Ave Ste 600
Pittsburg, CA 94565

3774 Railroad Ave Ste C11.75 miles

3774 Railroad Ave Ste C
Pittsburg, CA 94565

1901 Railroad Ave Ste B11.83 miles

1901 Railroad Ave Ste B
Pittsburg, CA 94565

1001 Pittsburg Antioch Hwy Ste B12.60 miles

1001 Pittsburg Antioch Hwy Ste B
Pittsburg, CA 94565

5167 Clayton Rd Ste H15.07 miles

5167 Clayton Rd Ste H
Concord, CA 94521

3000 Las Positas Rd17.50 miles

3000 Las Positas Rd
Livermore, CA 94551

10200 Trinity Pkwy18.58 miles

10200 Trinity Pkwy
Stockton, CA 95219

2160 W Grant Line Rd Ste 23018.61 miles

2160 W Grant Line Rd Ste 230
Tracy, CA 95377

320 Lennon Ln Fl 218.64 miles

320 Lennon Ln Fl 2
Walnut Creek, CA 94598

2477 Pacheco St18.70 miles

2477 Pacheco St
Concord, CA 94520

2 Terminal18.87 miles

2 Terminal
San Francisco, CA 94128

2425 East Street, Suite 618.89 miles

2425 East Street, Suite 6
Concord, CA 94520

2540 East St18.92 miles

2540 East St
Concord, CA 94520

6001 Norris Canyon Rd Ste 14219.03 miles

6001 Norris Canyon Rd Ste 142
San Ramon, CA 94583

5601 Norris Canyon Rd Ste 14019.03 miles

5601 Norris Canyon Rd Ste 140
San Ramon, CA 94583

2301 Camino Ramon Ste 10819.25 miles

2301 Camino Ramon Ste 108
San Ramon, CA 94583

5570 Stockton Loop19.31 miles

5570 Stockton Loop
Livermore, CA 94550

1111 E Stanley Blvd19.37 miles

1111 E Stanley Blvd
Livermore, CA 94550

1133 E Stanley Blvd Ste 15119.38 miles

1133 E Stanley Blvd Ste 151
Livermore, CA 94550

108 La Casa Via, Ste 10519.47 miles

108 La Casa Via, Ste 105
Walnut Creek, CA 94598

2291 W March Lane, Suite 145 F19.49 miles

2291 W March Lane, Suite 145 F
Stockton, CA 95207

4000 Dublin Blvd Ste 15019.50 miles

4000 Dublin Blvd Ste 150
Dublin, CA 94568

2090 Commerce Ave19.53 miles

2090 Commerce Ave
Concord, CA 94520

2231 Galaxy Ct19.58 miles

2231 Galaxy Ct
Concord, CA 94520

1782 W Hammer Ln19.90 miles

1782 W Hammer Ln
Stockton, CA 95209

Employment, Court Ordered, Probation, Family

Accredited Drug Testing provides thorough hair follicle drug assessments across East Contra Costa, California. For those needing a hair or alcohol test, Accredited Drug Testing focuses on hair evaluations, with facilities in every major city nationwide that are equipped to conduct such tests. Typically, 1.5 to 2 inches of hair from the crown of one's head or body is necessary. These tests can check for drugs, alcohol (ETG), or other tailored options.

In recent years, drug testing methods have increasingly included hair follicle analyses. Numerous employers, judicial bodies, and substance abuse experts now prefer hair tests over the traditional urine assessments. Employers enforcing zero-tolerance policies, legal systems, and probation services frequently opt for hair follicle tests. The primary advantage is their detection window for substances, extending up to 90 days, with sample collection under observation, making tampering nearly impossible. Nevertheless, for detecting usage in the past 5 days, urine tests remain most effective.

What it is, How it works

The analysis of hair samples has emerged as an effective instrument for identifying drug and alcohol consumption. Hair retains a lengthy history of alcohol and drug usage by incorporating biomarkers into the fibers as the hair strand extends. When procured near the scalp, hair can reveal substance usage up to roughly a three-month period for drugs and alcohol. Hair collection is straightforward, relatively tamper-resistant, and easy to transport.

A 1.5-inch segment comprising around 200 hair strands (equivalent to the thickness of a #2 pencil) nearest to the scalp yields 100mg of hair, deemed optimal for analysis and verification. For EtG, additional tests, and/or panels exceeding ten, 150mg of hair is advised. It's recommended to weigh the sample using a jeweler's scale. If scalp hair is not available, an equivalent volume of body hair can be gathered. In discussions regarding head hair, we exclusively mean scalp hair. Body hair encompasses all other types (such as facial, axillary, etc.).

Steps in the Process

The four fundamental phases in laboratory processing of a drug test result are: Accessioning, Screening, Extraction, and Confirmation.

Accessioning pertains to the initial handling of a sample into a lab’s system, which involves ensuring the sample was correctly sealed and shipped, assigning a Laboratory Accessioning Number (LAN) at random, and completing any supplementary data entry lacking from an electronic custody chain system.

Screening represents a primary swift evaluation for drugs of abuse. Though Screening is an economical method to rule out drug usage in most specimens, judicial admissibility requires that any positive screening needs confirmation. Samples that generate a presumptive positive in Screening warrant a subsequent confirmation.

Should a sample appear presumptively positive in Screening, additional hair is extracted from the initial sample for Extraction. At this phase, drugs are retrieved from hair at significantly lower concentrations than other techniques (like urine or oral fluid), which accounts for the heightened complexity of hair drug screening procedures.

Confirmation of any positive screening result is achieved utilizing GC/MS, GC/MS/MS, or LC/MS/MS. Any samples that are presumptively positive undergo washing before confirmation if necessary. The entire lab procedure from Accessioning to Confirmation is scrutinized under both the CAP (College of American Pathologists) Hair specification and ISO / IEC 17025 accreditation standards.

Merits of hair drug testing:

  • Extended detection period: Hair drug tests can trace drug use for as long as 90 days, as opposed to urine tests which reflect a shorter detection timeframe.
  • Challenging to manipulate: Hair drug tests are arduous to manipulate, thereby enhancing result reliability.
  • Delivers usage history: It offers insights into a long-term pattern of drug usage, beyond immediate use.

Drawbacks:

  • Inability to detect new use: There’s an approximate 5-7 day delay before drugs become evident in hair.
  • Expense: Hair drug tests are typically costlier than alternative drug testing methods.
  • Result variability: Factors such as hair color and individual hair growth rates can influence drug metabolite levels in hair.

Clarification: Despite often being termed "hair follicle tests", this test examines the hair strand rather than the follicle beneath the scalp.

Why Hair Follicle Testing Beats Urine Testing

When comparing hair follicle tests to traditional urine tests in East Contra Costa, CA, the former offer superior detection and reliability. Hair tests analyze drug use over longer periods, providing a more comprehensive history.

Employers find hair testing to be a more reliable method, as it significantly reduces the chances of tampering or sample adulteration, unlike urine tests.

Extended Detection Window

Hair follicle testing in East Contra Costa, CA, offers an extended detection window, capturing drug usage up to 90 days. This long span provides employers with an in-depth view of an individual's substance history.

Such prolonged detection periods are particularly valuable for ensuring workplace safety and maintaining drug-free environments.

Tamper-Resistant Testing Method

In East Contra Costa, CA, the hair follicle test is renowned for its tamper-resistant nature, drastically minimizing the potential for sample adulteration.

This reliability ensures the results are trustworthy and credible, providing peace of mind to employers and agencies against any fraudulent attempts.

Convenient Nationwide Locations

East Contra Costa, CA, benefits from convenient testing locations, part of a comprehensive nationwide network, making drug testing accessible and streamlined.

Our testing facilities ensure quick and easy access to necessary services, enabling employers and individuals to schedule tests without hassle.

Simple, Confidential Process

In East Contra Costa, CA, our hair follicle testing process is simple and confidential, ensuring privacy and ease from ordering to receiving results.

This streamlined procedure addresses any concerns about privacy, with a focus on user-friendly interactions and result confidentiality.

Affordable, Fast Turnaround

Our competitive pricing and rapid turnaround in East Contra Costa, CA, make hair follicle testing an economical choice for businesses of all sizes, offering excellent value.

With quality results delivered swiftly, companies enjoy both cost savings and assurance, facilitating efficient decision-making.

Fast, Accurate, and Reliable Results

In East Contra Costa, CA, hair follicle tests stand out for their quick, precise, and dependable results. Their ability to accurately detect substance use provides peace of mind for employers and agencies.

The efficiency of hair testing ensures rapid turnaround times, reducing the waiting period for results, which is crucial for decision-making processes.

Compliance and Peace of Mind for Employers

Employers in East Contra Costa, CA, gain compliance and peace of mind with hair follicle testing, as it upholds stringent workplace drug-free policies.

By reducing legal risks and encouraging a safe work environment, hair testing is invaluable for maintaining organizational integrity and safety.

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.


East Contra Costa Drug Testing

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

East Contra Costa DOT Drug Testing

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

East Contra Costa DNA Testing

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

East Contra Costa Industry Training

Including specimen collector training, DER training, reasonable suspicion training and much more in East Contra Costa, CA.v

East Contra Costa Hair Drug Testing

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

East Contra Costa Alcohol Testing

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

East Contra Costa Drug Testing Services

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

East Contra Costa 5 Panel Drug Test

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

East Contra Costa 10 Panel Drug Test

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

East Contra Costa On Site Drug Testing

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

East Contra Costa DOT Physicals

Certified DOT physicals with quick, reliable exams to keep East Contra Costa, 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

Sweet and helpful

Trish was amazing and got me through the sytem very fast and swift. I had a hard time hearing her a couple of times, but she was super sweet and helpful throughout the process. Highly recommend her!

Sophia Schutze - 6/19/2024

Quick, knowledgeable and courteous

Quick, knowledgeable and courteous Janelle worked diligently to support me. I am recommending their services to anyone looking.

Greensboro Joseph - 11/19/2024

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


(800) 221-4291