Our automated scheduling system is available 24/7. Order your test online and receive your donor/registration pass by email. Click Here
Same Day Service
Accredited Drug Testing offers comprehensive hair follicle drug tests in Petaluma, California. For those requiring a hair drug or alcohol test, Accredited Drug Testing is an expert in hair testing, with centers available in every city nationwide to conduct the test. Typically, 1.5 to 2 inches of hair from the head or body are needed. Hair testing can screen for drugs, alcohol/ETG, or other specialized hair test options.
In recent years, hair follicle drug tests have become a preferred method for drug screening. Employers, courts, and Substance Abuse professionals often opt for hair testing over the usual urine method. Zero-tolerance employers and courts favor hair tests for their extended drug detection period—up to 90 days—and their observed collection. However, urine tests remain most accurate for detecting drug use within the last 5 days.
Accredited Drug Testing offers comprehensive hair follicle drug tests in Petaluma, California. For those requiring a hair drug or alcohol test, Accredited Drug Testing is an expert in hair testing, with centers available in every city nationwide to conduct the test. Typically, 1.5 to 2 inches of hair from the head or body are needed. Hair testing can screen for drugs, alcohol/ETG, or other specialized hair test options.
In recent years, hair follicle drug tests have become a preferred method for drug screening. Employers, courts, and Substance Abuse professionals often opt for hair testing over the usual urine method. Zero-tolerance employers and courts favor hair tests for their extended drug detection period—up to 90 days—and their observed collection. However, urine tests remain most accurate for detecting drug use within the last 5 days.
* You must register by phone or online to receive your donor pass/registration prior to proceeding to the testing center. You must bring a valid government issued ID along with the registration/barcode number which was sent to you by email.
When you're searching for hair drug testing near me or hair drug testing locations, we provide a simple and convenient process to find a drug and alcohol testing location near you that is certified to provide all of your drug and alcohol testing needs.
Hair testing is increasingly recognized as a robust method for detecting drug and alcohol consumption. Hair captures a detailed history of alcohol and drug use by embedding biomarkers within the strands as they grow. Hair collected from near the scalp can offer up to an approximate 3-month detection window for substances. It is easy to collect, challenging to tamper with, and simple to transport.
A sample of 1.5 inches consisting of roughly 200 hair strands (similar to the size of a #2 pencil) near the scalp will yield 100mg, which is the optimal sample size for screening and confirmation. For EtG, add-ons, and tests exceeding 10 panels, 150mg of the sample is suggested. We advise using a jeweler’s scale to weigh the sample. If scalp hair cannot be obtained, an equivalent amount of body hair may be used. By head hair, we specifically mean scalp hair. Body hair includes all other hair variants (facial, axillary, etc.).
Process Overview
There are four primary stages in laboratory processing for drug test results: Accessioning, Screening, Extraction, and Confirmation.
Accessioning is the initial step of entering a sample into the laboratory system. This step includes confirming the sample was properly sealed and shipped, assigning a unique LAN (Laboratory Accessioning Number), and completing any additional data entry not available from an electronic chain of custody system.
Screening provides a preliminary check for drugs of abuse. While cost-effective for ruling out drug use for most samples, a positive screening result must be validated to be used in legal settings. Samples with positive screening results require additional confirmation.
Should screening indicate a presumptive positive, more hair is retrieved from the original sample and prepped for Extraction. During Extraction, substances are isolated from hair at a significantly lower concentration than other methods (like urine or oral fluid), making hair drug screening one of the most challenging methods to execute.
Confirmation of positive results from screening is undertaken using GC/MS, GC/MS/MS, or LC/MS/MS. All samples with presumptive positives get washed before confirmation if necessary. The overall process from Accessioning to Confirmation is scrutinized under both the CAP (College of American Pathologists) Hair classification and accredited by ISO / IEC 17025 standards.
Advantages of hair drug testing:
Limitations:
Note: Although often called "hair follicle tests", the procedure analyzes the hair strand and not the follicle beneath the scalp
Hair follicle testing offers several advantages over traditional urine tests in Petaluma, CA. With superior detection accuracy and reliability, hair testing provides a comprehensive insight into an individual's drug use history. Unlike urine tests, which have shorter detection windows, hair tests extend that period up to 90 days, offering a more thorough assessment for employers and legal entities.
The extended detection window of hair follicle testing, up to 90 days, provides employers in Petaluma, CA with a detailed overview of an applicant or employee's drug use history. This extensive period allows for more informed hiring and retention decisions, giving a clearer picture of substance use patterns compared to other testing methods.
Hair follicle testing in Petaluma, CA significantly reduces the possibility of sample tampering. The integrity of the test is maintained through a rigorous, tamper-proof collection process, ensuring that the results are both reliable and indisputable. This makes hair testing a trustworthy option for those seeking unquestionable results.
Petaluma, CA, benefits from the convenience of numerous nationwide testing centers offering hair follicle testing services. This network ensures quick and hassle-free access to testing facilities, making it simple and efficient for individuals and organizations to undergo required tests, regardless of their location.
Hair follicle testing in Petaluma, CA, features a straightforward and confidential process from order to results. Privacy and ease of use are prioritized, with clear instructions provided to ensure a seamless experience. This approach addresses concerns about confidentiality and simplifies the testing journey for every participant.
Accredited Drug Testing offers competitive pricing and fast turnaround times for hair follicle testing in Petaluma, CA. These affordable options deliver great value, making accurate and rapid drug testing accessible for companies of all sizes, ensuring peace of mind with cost-effective and efficient services.
In Petaluma, CA, hair follicle drug tests provide unparalleled speed and precision. These tests offer high accuracy rates in identifying substance use, ensuring quick and reliable results for employers and individuals alike. The streamlined process from collection to results guarantees minimal waiting time, allowing for efficient decision-making in various scenarios.
Ensuring compliance with workplace drug-free policies is crucial for employers in Petaluma, CA. Hair follicle testing provides peace of mind by reducing legal risks and enhancing workplace safety. This method assures adherence to regulations and supports a safe, productive working environment by effectively monitoring and managing substance use.
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.
Quickly find trusted local drug testing centers in Petaluma, CA — fast, convenient, and reliable every time!
Quickly find a local DOT drug testing center in Petaluma, CA — fast, reliable, convenient nationwide service!
DNA testing for legal and non-legal purposes including child support, and child custody around Petaluma, CA.
Including specimen collector training, DER training, reasonable suspicion training and much more in Petaluma, CA.v
Get fast, accurate hair drug testing at our convenient Petaluma, CA locations—results you can trust, every time!
Fast, reliable alcohol testing to keep your workplace safe and compliant every single day in Petaluma, CA.
Reliable nationwide drug testing services ensuring accuracy, compliance, and quick results for businesses and individuals in Petaluma, CA.
Accurate 5 panel drug testing with fast, confidential results—trusted by Petaluma, CA employers and individuals nationwide.
Comprehensive 10 panel drug testing with fast, reliable results—trusted for Petaluma, CA workplace and personal testing needs.
Convenient on-site mobile drug testing with fast, reliable results—saving time while keeping your Petaluma, CA workplace compliant.
Certified DOT physicals with quick, reliable exams to keep Petaluma, CA drivers compliant and on the road with confidence.
Join our DOT consortium for hassle-free compliance, random testing management, and reliable driver safety solutions.
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
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 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