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Accredited Drug Testing offers comprehensive hair follicle drug assessments in Houston, Texas. Should you require a hair drug or alcohol evaluation, Accredited Drug Testing is proficient in hair screening and maintains testing facilities across various national locations capable of performing such tests. A minimum hair length of 1.5 to 2 inches from the crown or body is necessary for most assessments. Hair screenings can detect drugs, alcohol/ETG, or other tailor-made testing solutions.
Hair follicle drug tests have become increasingly common in recent years for drug testing purposes. Numerous employers, judicial systems, and Substance Abuse professionals prefer hair drug tests over traditional urine tests. These tests are vital for employers pursuing zero-tolerance drug policies, implemented by courts, or required during probationary terms. A significant advantage of hair follicle drug testing is its prolonged drug detection period, lasting up to 90 days, conducted under supervision, and virtually tamper-proof. Nevertheless, for identifying drug use within the past five days, urine tests remain the most reliable.
Accredited Drug Testing offers comprehensive hair follicle drug assessments in Houston, Texas. Should you require a hair drug or alcohol evaluation, Accredited Drug Testing is proficient in hair screening and maintains testing facilities across various national locations capable of performing such tests. A minimum hair length of 1.5 to 2 inches from the crown or body is necessary for most assessments. Hair screenings can detect drugs, alcohol/ETG, or other tailor-made testing solutions.
Hair follicle drug tests have become increasingly common in recent years for drug testing purposes. Numerous employers, judicial systems, and Substance Abuse professionals prefer hair drug tests over traditional urine tests. These tests are vital for employers pursuing zero-tolerance drug policies, implemented by courts, or required during probationary terms. A significant advantage of hair follicle drug testing is its prolonged drug detection period, lasting up to 90 days, conducted under supervision, and virtually tamper-proof. Nevertheless, for identifying drug use within the past five days, urine tests remain the most reliable.
* 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 has become recognized as an effective method for identifying drug and alcohol consumption. Hair retains a long-term record of substance use by embedding biomarkers within the fibers of the growing strand. When taken near the scalp, hair samples can offer a detection period of up to roughly three months for alcohol and substances. Collection of hair is straightforward, relatively resistant to tampering, and convenient for transport.
A 1.5-inch sample with approximately 200 hairs (about the diameter of a #2 pencil) closest to the scalp yields 100mg, the ideal quantity for both screening and confirmation processes. For EtG, add-ons, and test panels exceeding 10, a 150mg specimen is suggested. We advise using a jeweler’s scale to measure the specimen. If scalp hair is not available, an equivalent amount of body hair can be taken. When mentioning head hair, we mean scalp hair exclusively. Body hair encompasses all other hair categories (facial, axillary, etc.).
Process Overview
The laboratory processing of a drug test result primarily involves four steps: Accessioning, Screening, Extraction, and Confirmation.
Accessioning is the initial step of processing a sample within a lab’s framework. It includes ensuring the sample was properly sealed and sent, assigning a random LAN (Laboratory Accessioning Number), and completing any extra data input not covered by an electronic chain of custody system.
Screening involves a swift preliminary checking for drugs of abuse. Although Screening is a cost-efficient method to rule out drug presence in most samples, a positive result requires confirmation to be legally valid. Any samples showing presumptive positivity during Screening require an additional confirmation step.
If a sample tests preliminarily positive in Screening, more hair is taken from the original specimen and prepared for Extraction. Here, drugs are drawn out from hair at a significantly lower concentration than seen in other methods (e.g., urine or oral fluid), making hair drug screening the most challenging method to execute.
Confirmation of any positive screening is carried out using GC/MS, GC/MS/MS, or LC/MS/MS techniques. All samples with presumptive positivity are washed before confirmation as necessary. The entire process from Accessioning to Confirmation is inspected under the CAP (College of American Pathologists) Hair designation and the ISO / IEC 17025 accreditation standards.
Advantages of hair drug testing:
Limitations:
Note: Though commonly called "hair follicle tests", the analysis is conducted on the hair strand and not the follicle beneath the scalp
Hair follicle tests in Houston, TX, outshine traditional urine testing due to superior detection capabilities. Comparing benefits, hair tests offer longer detection windows and increased reliability, avoiding common urine test pitfalls.
In Houston, TX, hair follicle testing provides an extended detection window of up to 90 days, offering a detailed overview of substance use history. Comprehensive evaluations are possible, making it an excellent choice for employers who require a deeper insight into an individual's drug use.
Hair follicle testing in Houston, TX, is a tamper-resistant method that greatly reduces sample adulteration risks. Security in testing ensures that results are trustworthy and indisputable.
Convenience is paramount with Accredited Drug Testing's numerous testing facilities across Houston, TX, and nationwide. Accessible centers simplify the process, ensuring easy access to essential testing services.
The process for hair follicle testing in Houston, TX, is simple and confidential, addressing privacy concerns effectively. Ease of use is ensured throughout from ordering to receiving results.
Houston, TX, businesses benefit from Accredited Drug Testing's affordable pricing and fast turnaround for hair follicle testing. Competitive pricing structures ensure value, while quick result times provide a trusted option for companies of any size.
In Houston, TX, hair follicle drug tests offer unmatched precision and speed, delivering quick and accurate results. Substance detection through hair analysis provides high accuracy, making it an ideal choice for reliable drug testing.
Employers in Houston, TX, can achieve peace of mind with hair follicle testing, ensuring workplace safety and compliance with drug-free policies. Reducing legal risks is a key benefit, as such testing supports adherence to workplace regulations.
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.
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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