Hair Drug Testing Locations - Redwood City, CA

(800) 221-4291

Schedule your Hair Drug Test

Employment, Court Ordered, Probation, Family

Accredited Drug Testing offers comprehensive hair follicle drug testing services in Redwood City, California. If a hair drug or alcohol test is needed, our expertise in hair testing is unmatched, and our service locations spread across all U.S. cities to provide such tests. Generally, 1.5 to 2 inches of hair is required from the crown or another body part. Hair tests can explore drugs, alcohol/ETG, or other tailored testing options.

Lately, drug testing methods have increasingly incorporated hair follicle tests. Employers, judicial systems, and Substance Abuse experts favor this method over standard urine tests. Employers with zero-tolerance policies, courts, and probationary programs utilize hair follicle tests for their longer detection window of up to 90 days and observation-based collection process, minimizing cheating. Nevertheless, urine tests remain the most accurate for recent drug use within the last five 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.

39 Hair Drug Testing Centers in Redwood City

1400 Veterans Blvd Fl 10.96 miles

1400 Veterans Blvd Fl 1
Redwood City, CA 94063

170 Alameda De Las Pulgas1.00 miles

170 Alameda De Las Pulgas
Redwood City, CA 94062

1100 Laurel Street, Suite F1.37 miles

1100 Laurel Street, Suite F
San Carlos, CA 94070

125 Shoreway Rd Ste A2.81 miles

125 Shoreway Rd Ste A
San Carlos, CA 94070

222 W 39th Ave4.64 miles

222 W 39th Ave
San Mateo, CA 94403

300 Pasteur Dr4.76 miles

300 Pasteur Dr
Palo Alto, CA 94304

1098 Foster City Blvd, Ste 1024.85 miles

1098 Foster City Blvd, Ste 102
Foster City, CA 94404

795 El Camino Real5.04 miles

795 El Camino Real
Palo Alto, CA 94301

60 N El Camino Real7.72 miles

60 N El Camino Real
San Mateo, CA 94401

2290 W El Camino Real Ste 49.38 miles

2290 W El Camino Real Ste 4
Mountain View, CA 94040

1860 El Camino Real Ste 40010.65 miles

1860 El Camino Real Ste 400
Burlingame, CA 94010

35500 Dumbarton Ct11.00 miles

35500 Dumbarton Ct
Newark, CA 94560

1501 Trousdale Dr11.04 miles

1501 Trousdale Dr
Burlingame, CA 94010

1663 Rollins Rd11.18 miles

1663 Rollins Rd
Burlingame, CA 94010

3555 Whipple Rd11.83 miles

3555 Whipple Rd
Union City, CA 94587

2500 Grant Rd11.86 miles

2500 Grant Rd
Mountain View, CA 94040

573 W El Camino Real11.94 miles

573 W El Camino Real
Mountain View, CA 94040

29000 Hesperian Blvd12.16 miles

29000 Hesperian Blvd
Hayward, CA 94545

26250 Industrial Blvd Ste 3212.33 miles

26250 Industrial Blvd Ste 32
Hayward, CA 94545

33077 Alvarado Niles Rd12.96 miles

33077 Alvarado Niles Rd
Union City, CA 94587

27200 Calaroga Ave12.99 miles

27200 Calaroga Ave
Hayward, CA 94545

901 W El Camino Real13.17 miles

901 W El Camino Real
Sunnyvale, CA 94087

33560 Alvarado Niles Rd13.22 miles

33560 Alvarado Niles Rd
Union City, CA 94587

39180 Farwell Dr Ste 23113.48 miles

39180 Farwell Dr Ste 231
Fremont, CA 94538

877 W Fremont Avenue, Ste H-213.76 miles

877 W Fremont Avenue, Ste H-2
Sunnyvale, CA 94087

5763 Stevenson Blvd13.85 miles

5763 Stevenson Blvd
Newark, CA 94560

42650 Christy St14.12 miles

42650 Christy St
Fremont, CA 94538

801 Traeger Ave Ste 21214.19 miles

801 Traeger Ave Ste 212
San Bruno, CA 94066

2147 Mowry Ave Ste C114.82 miles

2147 Mowry Ave Ste C1
Fremont, CA 94538

3161 Walnut Ave14.85 miles

3161 Walnut Ave
Fremont, CA 94538

2000 Mowry Ave14.92 miles

2000 Mowry Ave
Fremont, CA 94538

3 S Linden Ave14.98 miles

3 S Linden Ave
South San Francisco, CA 94080

1195 E Arques Ave Bldg 114.98 miles

1195 E Arques Ave Bldg 1
Sunnyvale, CA 94085

10050 N Wolfe Rd Ste Sw1-19015.02 miles

10050 N Wolfe Rd Ste Sw1-190
Cupertino, CA 95014

10050 Bubb Rd Ste 315.14 miles

10050 Bubb Rd Ste 3
Cupertino, CA 95014

24326 Mission Blvd Ste 315.16 miles

24326 Mission Blvd Ste 3
Hayward, CA 94544

39400 Padeo Padre Pkwy Mission Bldg15.36 miles

39400 Padeo Padre Pkwy Mission Bldg
Fremont, CA 94538

556 Mowry Avenue, Suite 10315.51 miles

556 Mowry Avenue, Suite 103
Fremont, CA 94536

2587 Merced St15.55 miles

2587 Merced St
San Leandro, CA 94577
Experience Matters

What it is, How it works

Hair testing is increasingly regarded as a powerful diagnostic method for identifying drug and alcohol consumption. By capturing biomarkers within the fibers of the hair strand in growth, hair offers a prolonged history of drugs and alcohol. When clipped close to the scalp, it can offer a detection window of up to around three months for alcohol and other substances. Hair collection is straightforward, challenging to tamper with, and easy to transport.

A sample measuring 1.5 inches, comprising about 200 hair strands (approximately the thickness of a #2 pencil), taken closest to the scalp will provide 100mg, the optimal amount for screening and confirmation. For extended tests above 10 panels, EtG, or add-ons, a 150mg sample is advisable. Using a jeweler’s scale to weigh the sample is recommended. If scalp hair is not available, a similar amount of body hair can be used. When head hair is mentioned, it refers exclusively to scalp hair. Body hair encompasses all other hair varieties (facial hair, axillary hair, etc.).

Process Overview

The laboratory processing of a drug test result involves four crucial stages: Accessioning, Screening, Extraction, and Confirmation.

Accessioning incorporates the initial sample processing into a lab's system. This process includes validating that the sample is sealed and transported appropriately, assigning a random LAN (Laboratory Accessioning Number), and finalizing any necessary data entry absent from an electronic chain of custody system.

Screening serves as a preliminary assessment for drugs of abuse. While Screening serves as an efficient means to rule out drug use in the majority of samples, a positive screen requires confirmation for court admissibility. Samples that are presumptively positive during Screening necessitate a secondary confirmation.

If a sample shows a presumptive positive during Screening, further hair from the initial sample is extracted and prepared for Extraction. Drugs are extracted from hair at significantly lower concentrations compared to other techniques (e.g., urine, oral fluid), which is why hair drug screening presents more challenges.

Confirmation of any positive screening results is carried out via GC/MS, GC/MS/MS, or LC/MS/MS. All samples indicating presumptive positivity undergo washing prior to confirmation, as needed. The entire laboratory protocol from Accessioning to Confirmation is examined under both the CAP (College of American Pathologists) Hair designation and ISO / IEC 17025 accreditation standards.

Advantages of hair drug testing:

  • Long detection span: Hair drug tests can identify drug usage up to 90 days, whereas urine tests offer a shorter detection span.
  • Difficult to falsify: Cheating a hair drug test is exceedingly challenging, thereby improving result accuracy.
  • Yields historical insight: It can reveal a pattern of drug use over time, rather than just recent consumption.

Limitations:

  • Incapable of detecting recent consumption: Drugs become detectable in hair approximately 5-7 days following use.
  • Costly: Hair drug tests typically incur higher expenses compared to alternative drug testing methods.
  • Result variability: Hair color and individual differences in hair growth can influence drug metabolite concentration in hair.

Note: Although commonly termed as "hair follicle tests", the actual test analyzes the hair strand rather than the hair follicle beneath the scalp.

Why Hair Follicle Testing Beats Urine Testing

Why Hair Follicle Testing Surpasses Urine Testing in Redwood City, CA
Hair follicle tests offer substantial advantages over urine tests, like heightened detection capabilities. They provide a superior analysis, identifying substances even long after use has occurred, unlike their more conventional counterparts.

Redwood City's shift toward hair tests reflects a broader recognition of their reliability. With hair follicle testing, false negatives are less likely, providing accurate insights into an individual's drug use history without relying on same-day detection.

Extended Detection Window

Prolonged Detection Range in Redwood City, CA
The capability of hair follicle tests to track drug use over a span of up to 90 days greatly benefits employers. Unlike short-term urine tests, hair tests reveal a person’s prolonged drug usage pattern, enabling informed decisions about employment and workplace safety.

Employers in Redwood City gain a more thorough overview of an individual's substance history, reinforcing their commitment to maintaining an engaging and secure working environment by understanding long-term habits.

Tamper-Resistant Testing Method

Impenetrable Testing Technique in Redwood City, CA
By substantially curbing the potential for sample adulteration, hair follicle tests ensure the delivery of results that can withstand scrutiny. These tests are renowned for their integrity, leaving minimal room for tampering attempts.

Redwood City establishments consider these tests as a dependable tool for ensuring transparency.When integrity and accuracy are vital, hair follicle testing stands as the gold standard, offering results that you can rely on.

Convenient Nationwide Locations

Accessible Nationwide and Local Testing Facilities in Redwood City, CA
Our testing centers are conveniently situated throughout the nation, offering seamless access to services for businesses and individuals alike. Locally, our Redwood City location ensures the community can easily access prompt and efficient testing services.

This network of centers makes the drug testing process hassle-free, contributing to a straightforward experience when verifying an individual’s compliance or screening candidates.

Simple, Confidential Process

Effortless and Confidential in Redwood City, CA
Simplicity and confidentiality are at the forefront of our drug testing process in Redwood City. From ordering to receiving results, every stage is designed to preserve privacy and ease, addressing potential concerns about personal information handling.

Users are assured of a streamlined experience, trusting that their data remains confidential while receiving precise results in a timely manner.

Affordable, Fast Turnaround

Cost-Effective and Swift in Redwood City, CA
Our pricing models offer competitive rates, ensuring access to comprehensive drug testing without overextending budgets. The swift turnaround in results ensures that businesses in Redwood City are not left waiting, securing timely information needed to make pivotal decisions.

These factors blend to provide incomparable value, making our services a strategic choice for businesses of all scales, further driving safety and compliance within the workplace.

Fast, Accurate, and Reliable Results

Rapid, Precise, and Dependable Outcomes in Redwood City, CA
The efficiency and precision of hair follicle drug testing are unmatched. Not only do these tests accurately detect substance use, but they also deliver faster results than traditional methods, ensuring reliability while meeting the needs of modern workplaces.

The high level of accuracy offered by hair follicle tests delivers peace of mind. Redwood City employers can trust these tests to unveil whether employees have engaged in substance use, minimizing discrepancies and false negatives.

Compliance and Peace of Mind for Employers

Adhering to Standards Brings Assurance to Employers in Redwood City, CA
Employers in Redwood City who adopt hair follicle testing contribute to a safer workplace. This method aligns with drug-free workplace policies, thus diminishing legal risks and enhancing overall safety.

Using hair follicle testing allows companies to enforce zero-tolerance policies effectively. The NA annual report showcases positive results in lowered incidents when this testing method is implemented, providing peace of mind.

(800) 221-4291