Hair Drug Testing Locations - Guerneville, CA

(800) 221-4291

Schedule your Hair Drug Test

Employment, Court Ordered, Probation, Family

Accredited Drug Testing offers comprehensive hair drug testing services in Guerneville, California. If you're in need of a hair drug or alcohol screening, Accredited Drug Testing is an expert in this field and provides testing centers across all major cities nationwide. For a test, typically 1.5 to 2 inches of hair from the crown or an alternative body part is required. Hair tests can reveal drugs, alcohol/ETG, or other specialized options.

Recently, drug testing methods have increasingly embraced hair follicle testing over traditional urine tests. Numerous employers, judicial systems, and Substance Abuse professionals are favoring this approach. Hair follicle tests are favored by zero-tolerance employers, courts, and probation officers. The key advantage is a prolonged detection window, usually up to 90 days, collected under supervision, making tampering nearly impossible. Still, for recent drug use within the past 5 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.

33 Hair Drug Testing Centers in Guerneville

421 March Ave, Ste C10.47 miles

421 March Ave, Ste C
Healdsburg, CA 95448

8465 Old Redwood Hwy Ste 40010.47 miles

8465 Old Redwood Hwy Ste 400
Windsor, CA 95492

1375 University St10.57 miles

1375 University St
Healdsburg, CA 95448

652 Petaluma Ave Ste C12.07 miles

652 Petaluma Ave Ste C
Sebastopol, CA 95472

6800 Palm Avenue, Suite G12.15 miles

6800 Palm Avenue, Suite G
Sebastopol, CA 95472

1287 Fulton Rd12.64 miles

1287 Fulton Rd
Santa Rosa, CA 95401

3650 Westwind Blvd Po Box 568012.76 miles

3650 Westwind Blvd Po Box 5680
Santa Rosa, CA 95403

3975 Old Redwood Hwy Ste 15213.92 miles

3975 Old Redwood Hwy Ste 152
Santa Rosa, CA 95403

1221 N Dutton Ave14.38 miles

1221 N Dutton Ave
Santa Rosa, CA 95401

349 College Ave15.19 miles

349 College Ave
Santa Rosa, CA 95401

990 Sonoma Ave,16.32 miles

990 Sonoma Ave,
Santa Rosa, CA 95404

1111 Sonoma Ave Ste 12116.37 miles

1111 Sonoma Ave Ste 121
Santa Rosa, CA 95405

20 Elaine Dr17.97 miles

20 Elaine Dr
Santa Rosa, CA 95409

6025 Labath Ave Ste 10418.25 miles

6025 Labath Ave Ste 104
Rohnert Park, CA 94928

5900 State Farm Dr18.73 miles

5900 State Farm Dr
Rohnert Park, CA 94928

6174 State Farm Dr18.90 miles

6174 State Farm Dr
Rohnert Park, CA 94928

1370 Medical Center Dr Ste B20.03 miles

1370 Medical Center Dr Ste B
Rohnert Park, CA 94928

1550 Professional Drive, Suite B26.23 miles

1550 Professional Drive, Suite B
Petaluma, CA 94954

400 N Mcdowell Blvd26.25 miles

400 N Mcdowell Blvd
Petaluma, CA 94954

151 Lynch Creek Way26.26 miles

151 Lynch Creek Way
Petaluma, CA 94954

153 Lynch Creek Way26.27 miles

153 Lynch Creek Way
Petaluma, CA 94954

709 Petaluma Blvd N26.30 miles

709 Petaluma Blvd N
Petaluma, CA 94952

10 Woodland Rd27.89 miles

10 Woodland Rd
Saint Helena, CA 94574

3900 Lakeville Hwy29.22 miles

3900 Lakeville Hwy
Petaluma, CA 94954

347 Andrieux St32.28 miles

347 Andrieux St
Sonoma, CA 95476

16320 Tish A Tang Rd35.19 miles

16320 Tish A Tang Rd
Lower Lake, CA 95457

180 Rowland Way36.81 miles

180 Rowland Way
Novato, CA 94945

5176 Hill Rd E Attn Lab37.12 miles

5176 Hill Rd E Attn Lab
Lakeport, CA 95453

2559 Lakeshore Blvd Ste 438.43 miles

2559 Lakeshore Blvd Ste 4
Lakeport, CA 95453

3285 Claremont Way Fl 239.40 miles

3285 Claremont Way Fl 2
Napa, CA 94558

1000 Trancas St39.68 miles

1000 Trancas St
Napa, CA 94558

3435 Valle Verde Dr Ste B39.72 miles

3435 Valle Verde Dr Ste B
Napa, CA 94558

3260 Beard Road, Suite A39.78 miles

3260 Beard Road, Suite A
Napa, CA 94558
Experience Matters

What it is, How it works

Hair analysis is widely recognized as an effective method for detecting drug and alcohol consumption. It chronicles long-term alcohol and drug use by embedding biomarkers within the strands of growing hair. When obtained near the scalp, hair can reveal a history of up to roughly three months for alcohol and drug usage. The collection process for hair is straightforward, hard to tamper with, and convenient for transportation.

A sample measuring 1.5 inches, comprising around 200 hair strands (approximating the girth of a #2 pencil), taken close to the scalp, will weigh about 100mg, which is ideal for screening and confirmation. For assessments involving EtG add-ons and/or tests exceeding 10 panels, a specimen weighing 150mg is advised. It is advisable to use a jeweler's scale for accurate weighing. Should scalp hair be unavailable, equivalent amounts of body hair can be utilized. "Head hair" pertains specifically to scalp hair, whereas "body hair" includes all other varieties (like facial, axillary, etc.).

Process Overview

Drug test outcomes in a laboratory follow four primary steps: Accessioning, Screening, Extraction, and Confirmation.

During Accessioning, a sample is first processed into a laboratory's system. This step verifies that the sample was properly sealed and transported, assigns a random LAN (Laboratory Accessioning Number), and completes any extra data entry not captured by an electronic chain of custody system.

Screening represents the initial rapid assessment for substances of abuse. Although Screening is a cost-effective method to eliminate drug use in most samples, a positive result must be confirmed to be legally defensible. Samples that yield a presumptive positive in Screening demand subsequent confirmation.

Should a sample test positive at the Screening stage, additional hair from the initial batch is prepared for Extraction. This process extracts drugs from hair at significantly lower concentrations compared to other methods (such as urine or oral fluid), explaining why hair drug screening is among the most challenging methodologies.

Confirmation of any positively screened sample is performed via GC/MS, GC/MS/MS, or LC/MS/MS. Presumptive positives undergo washing prior to confirmation as required. The complete procedure from Accessioning to Confirmation is evaluated under the CAP (College of American Pathologists) Hair designation and complies with the ISO / IEC 17025 accreditation standards.

Advantages of hair drug testing:

  • Extended detection period: Hair tests identify drug use over a 90-day span, unlike urine tests which have a much shorter detection period.
  • Integrity: The high difficulty of cheating a hair drug test enhances result accuracy.
  • Chronological data: It offers a timeline of drug usage patterns over time, rather than just recent consumption.

Limitations:

  • Cannot detect recent use: Drugs are not detectable in hair until about 5-7 days post-consumption.
  • Expense: Hair drug testing typically incurs higher costs than other testing methods.
  • Result variability: Elements like hair color and individual differences in hair growth can impact drug metabolite concentrations in hair.

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

Why Hair Follicle Testing Beats Urine Testing

Why Hair Follicle Testing Beats Urine Testing in Guerneville, CA

The choice of hair follicle testing over urine testing is obvious when comparing benefits. Hair testing shows a longer history of substance use, offering more accurate detection compared to traditional urine tests. With a collection process observed closely, it's nearly impossible to tamper with results, offering reliability employers and authorities can trust.

Extended Detection Window

Extended Detection Window in Guerneville, CA

Hair follicle testing excels with its capacity to reveal drug use over an extended period, up to 90 days. Employers in Guerneville, CA, benefit from a clearer view of an employee's or candidate's substance history, allowing for more informed decisions. This extended window offers a comprehensive overview, unlike shorter-term testing methods.

Tamper-Resistant Testing Method

Tamper-Resistant Testing Method in Guerneville, CA

Hair follicle tests provide a nearly impossible-to-tamper solution for drug testing in Guerneville, CA. With a strictly observed collection process, these tests minimize the risk of adulteration. This tamper-resistant nature ensures that results are consistent and reliable, greatly reducing the chance of fraudulent results.

Convenient Nationwide Locations

Convenient Nationwide Testing Locations and Local Locations in Guerneville, CA

Our testing centers spread nationwide, including Guerneville, CA, ensure convenience and accessibility. Whether you're local or traveling, our centers provide quick and stress-free access to reliable testing services, simplifying the process for all involved parties.

Simple, Confidential Process

Simple, Confidential Process in Guerneville, CA

The solution for testing in Guerneville, CA, lies in its simplicity and confidentiality. Ordering a test, sample collection, and obtaining the results are all managed with privacy and ease of use. Rest assured, your details are handled discreetly, addressing all privacy concerns effectively.

Affordable, Fast Turnaround

Affordable Pricing and Fast Turnaround in Guerneville, CA

Our competitive pricing and quick result delivery provide great value for businesses of all sizes in Guerneville, CA. The streamline cost structure and swift turnaround times ensure you receive excellent service without breaking the budget, supporting timely decision-making and peace of mind.

Fast, Accurate, and Reliable Results

Fast, Accurate, and Reliable Results in Guerneville, CA

In Guerneville, CA, hair follicle drug tests are known for their quick and accurate results. This testing method is highly precise in identifying substances, providing assurance in its reliability. The speed of obtaining results aids in making swift decisions, important for employers and individuals seeking clarity on substance use.

Compliance and Peace of Mind for Employers

Compliance and Peace of Mind for Employers in Guerneville, CA

Hair follicle testing promotes compliance with workplace drug-free policies in Guerneville, CA, offering employers peace of mind. By adopting this method, organizations mitigate legal risks and advance safety in the workplace. It provides employers confidence in maintaining a safe, compliant work environment.

(800) 221-4291