Hair Drug Testing Locations - Castro Valley, CA

(800) 221-4291

Schedule your Hair Drug Test

Employment, Court Ordered, Probation, Family

Accredited Drug Testing offers comprehensive hair follicle drug analysis in Castro Valley, California. If you're in need of hair or alcohol testing, we specialize in these services, with locations ready to assist you nationwide. Generally, 1.5 to 2 inches of scalp or body hair is required. Our hair tests detect drugs, alcohol/ETG, or can be tailored to specific testing needs.

In recent years, drug testing methodologies have increasingly embraced hair follicle tests. Employers, legal entities, and substance abuse experts are often favoring these over traditional urine tests. Firms with strict no-drug policies, judicial systems, and probation officers trust hair tests. They offer a significant detection timeline, capturing drug use up to 90 days and are collected in a supervised process, making them difficult to falsify. However, for drug use within the prior 5 days, urine tests remain the most precise.

* 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.

38 Hair Drug Testing Centers in Castro Valley

20400 Lake Chabot Rd Ste 101,0.15 miles

20400 Lake Chabot Rd Ste 101,
Castro Valley, CA 94546

24326 Mission Blvd Ste 32.10 miles

24326 Mission Blvd Ste 3
Hayward, CA 94544

13939 E 14th St3.27 miles

13939 E 14th St
San Leandro, CA 94578

27200 Calaroga Ave4.23 miles

27200 Calaroga Ave
Hayward, CA 94545

26250 Industrial Blvd Ste 324.41 miles

26250 Industrial Blvd Ste 32
Hayward, CA 94545

2587 Merced St4.49 miles

2587 Merced St
San Leandro, CA 94577

29000 Hesperian Blvd5.42 miles

29000 Hesperian Blvd
Hayward, CA 94545

1555 Doolittle Dr Ste 1805.50 miles

1555 Doolittle Dr Ste 180
San Leandro, CA 94577

3555 Whipple Rd6.10 miles

3555 Whipple Rd
Union City, CA 94587

7901 Oakport St Ste 4950 2nd Floor7.03 miles

7901 Oakport St Ste 4950 2nd Floor
Oakland, CA 94621

7817 Oakport St7.09 miles

7817 Oakport St
Oakland, CA 94621

401 Roland Way Ste 2057.26 miles

401 Roland Way Ste 205
Oakland, CA 94621

33077 Alvarado Niles Rd7.37 miles

33077 Alvarado Niles Rd
Union City, CA 94587

33560 Alvarado Niles Rd7.63 miles

33560 Alvarado Niles Rd
Union City, CA 94587

7667 Amador Valley Blvd8.40 miles

7667 Amador Valley Blvd
Dublin, CA 94568

5720 Stoneridge Mall Road, Suite 1108.49 miles

5720 Stoneridge Mall Road, Suite 110
Pleasanton, CA 94588

2301 Camino Ramon Ste 1088.69 miles

2301 Camino Ramon Ste 108
San Ramon, CA 94583

7601 Stoneridge Dr Fl 18.81 miles

7601 Stoneridge Dr Fl 1
Pleasanton, CA 94588

6001 Norris Canyon Rd Ste 1428.91 miles

6001 Norris Canyon Rd Ste 142
San Ramon, CA 94583

5601 Norris Canyon Rd Ste 1408.91 miles

5601 Norris Canyon Rd Ste 140
San Ramon, CA 94583

2421 Encinal Ave Ste A9.79 miles

2421 Encinal Ave Ste A
Alameda, CA 94501

4847 Hopyard Rd Ste 4-42410.01 miles

4847 Hopyard Rd Ste 4-424
Pleasanton, CA 94588

2111 Whitehall Place, Suite D10.23 miles

2111 Whitehall Place, Suite D
Alameda, CA 94501

35500 Dumbarton Ct10.26 miles

35500 Dumbarton Ct
Newark, CA 94560

5635 W Las Positas Blvd10.74 miles

5635 W Las Positas Blvd
Pleasanton, CA 94588

556 Mowry Avenue, Suite 10310.75 miles

556 Mowry Avenue, Suite 103
Fremont, CA 94536

2000 Mowry Ave11.00 miles

2000 Mowry Ave
Fremont, CA 94538

2147 Mowry Ave Ste C111.01 miles

2147 Mowry Ave Ste C1
Fremont, CA 94538

3128 Santa Rita Rd11.38 miles

3128 Santa Rita Rd
Pleasanton, CA 94566

3161 Walnut Ave11.50 miles

3161 Walnut Ave
Fremont, CA 94538

2324 Santa Rita Rd Ste 411.55 miles

2324 Santa Rita Rd Ste 4
Pleasanton, CA 94566

2224 Delucchi Dr11.73 miles

2224 Delucchi Dr
Pleasanton, CA 94588

4000 Dublin Blvd Ste 15011.92 miles

4000 Dublin Blvd Ste 150
Dublin, CA 94568

39180 Farwell Dr Ste 23112.23 miles

39180 Farwell Dr Ste 231
Fremont, CA 94538

3200 Busch Rd12.29 miles

3200 Busch Rd
Pleasanton, CA 94566

1517 Grand Ave12.39 miles

1517 Grand Ave
Piedmont, CA 94611

384 Embarcadero W12.45 miles

384 Embarcadero W
Oakland, CA 94607

1700 Broadway Ste 31012.69 miles

1700 Broadway Ste 310
Oakland, CA 94612
Experience Matters

What it is, How it works

Utilizing hair testing has become recognized as an effective method for identifying drug and alcohol consumption. Hair offers an extended timeline for detecting alcohol and other substances by capturing biomarkers within the strands as they grow. When sourced close to the scalp, hair may present a detection window of up to about three months for both alcohol and drug use. It is straightforward to collect, fairly resistant to tampering, and convenient to transport.

A segment of 1.5 inches from approximately 200 hair strands (about the thickness of a #2 pencil) near the scalp provides 100mg, which is the optimum quantity for screening and verification. For EtG, additional tests, and/or analyses exceeding 10 panels, it is advisable to use 150mg of the sample. The specimen should be weighed using a jeweler's scale for accuracy. In cases where scalp hair is not available, a similar quantity of body hair can be gathered. "Head hair" specifically refers to scalp hair, while "body hair" encompasses all other types (like facial, axillary, etc.).

Process Overview

The laboratory analysis of a drug test result encompasses four primary stages: Accessioning, Screening, Extraction, and Confirmation.

Accessioning is the initial step that involves inputting a sample into the laboratory's system. This stage includes confirming that the sample is correctly sealed and shipped, assigning a randomized Laboratory Accessioning Number (LAN), and completing any extra data entry that isn't covered by an electronic chain of custody system.

Screening involves an initial swift assessment for substance abuse. Though Screening is a cost-efficient approach to exclude drug use in most samples, any positive result must be verified for legal acceptability. Samples showing a potential positive in Screening necessitate subsequent confirmation.

In instances where a sample is potentially positive during the Screening phase, additional hair is extracted from the original sample for the Extraction phase. Here, drugs are isolated from hair at a significantly lower concentration compared to other techniques (such as urine or oral fluid testing), highlighting why hair drug screening is among the most challenging techniques to execute.

Confirmation of any tentative positive screening outcome occurs through methods such as GC/MS, GC/MS/MS, or LC/MS/MS. All preliminary positive samples are cleansed before confirmation if required. The full laboratory procedure from Accessioning to Confirmation undergoes scrutiny under both the CAP (College of American Pathologists) Hair designation and adherence to ISO / IEC 17025 criteria.

Advantages of hair drug testing:

  • Extended detection period: Hair drug tests can identify substance use for up to 90 days, in contrast to urine tests which offer a shorter detection time.
  • Reduced likelihood of manipulation: It is considerably difficult to deceive a hair drug test, ensuring more precise outcomes.
  • Historical consumption data: It offers insights into drug use tendencies over time rather than only recent use.

Limitations:

  • Incapable of detecting recent consumption: Drugs require around 5-7 days to be traceable in hair.
  • Higher cost: Hair drug tests are typically pricier compared to alternative testing methods.
  • Result variability: Elements such as hair color and individual differences in hair growth can influence the concentration of drug residues in the hair.

Note: Although frequently termed "hair follicle tests," the test examines the strand of hair, not the follicle situated beneath the scalp.

Why Hair Follicle Testing Beats Urine Testing

In Castro Valley, CA, hair follicle testing is a superior choice over traditional urine testing. Why Hair Follicle Testing Beats Urine Testing is due to its enhanced detection accuracy and reliability, giving a clearer picture of an individual's substance use history.

Extended Detection Window

Hair follicle testing offers an Extended Detection Window, enabling the identification of drug use for up to 90 days. This provides employers in Castro Valley, CA, a detailed understanding of an applicant or employee's substance use, far beyond the capacity of urine testing.

Tamper-Resistant Testing Method

Sample integrity is paramount in drug testing. Tamper-Resistant Testing Method through hair follicle analysis significantly minimizes adulteration risks, ensuring trustworthy results in Castro Valley, CA.

Convenient Nationwide Locations

Our testing services in Castro Valley, CA, boast Convenient Nationwide Testing Locations. With a widespread network, clients can access testing effortlessly, ensuring a hassle-free experience.

Simple, Confidential Process

The process in Castro Valley, CA, is both Simple and Confidential. Ordering, taking, and receiving test results is straightforward and respects privacy, addressing user concerns effectively.

Affordable, Fast Turnaround

We offer Affordable Pricing and Fast Turnaround in Castro Valley, CA. This competitive pricing and quick result delivery provide substantial value and assurance for businesses of varying sizes.

Fast, Accurate, and Reliable Results

The reliability and precision of hair follicle drug tests in Castro Valley, CA, are unmatched. With a high level of accuracy, these tests swiftly detect substance use. Fast, Accurate, and Reliable Results are crucial, and hair follicle testing delivers just that, ensuring employers and individuals can trust the findings.

Compliance and Peace of Mind for Employers

In Castro Valley, CA, employers benefit from Compliance and Peace of Mind by using hair follicle testing. This method supports adherence to drug-free policies, lowering legal liabilities and improving workplace safety.

(800) 221-4291