Welcome to
Cannabis Testing


Lab Locator

Where to find an ISO 17025 accredited PharmLabs cannabis analytic and compliance testing near you!

San Diego, CA

San Diego PharmLabs
3421 Hancock St, II Floor
San Diego, CA 92110
+1 (619) 356-0898

Kahului, HI

Hawaii PharmLabs
77 Hookele St #101
Kahului, HI 96732
+1 (808) 385-5303

Coachella, CA

Coachella PharmLabs
48220 Jackson St, Suite A2
Coachella, CA 92236
+1 (760) 279-8279

Long Beach, CA

Long Beach PharmLabs
2240 Pacific Ave #B
Long Beach, CA 90806
+1 (562) 222-0562


Cutting edge services offered by PharmLabs.

Cannabinoids Profiling & Analysis

Potency analysis is the process of identifying and quantifying cannabinoids in cannabis and cannabis related products. Potency screening aids the cannabis industry in analyzing the level of cannabinoids in cannabis products so consumers are armed with the proper information to make an informed decision on proper dosing and the type of medicines they require to best suit their needs. This unique testing allows individuals to make educated decisions concerning the cannabis products they consume. Potency analysis is generally performed with either Gas Chromatograph (GC) or an High Pressure Liquid Chromatograph (HPLC)

Microbiological Contaminants & Mycotoxin Screenings

Plant matter, including cannabis, are ideal breeding grounds of many types of bacteria and molds. Many of the mold species are capable of creating compounds that are known for causing certain diseases and cancers-mycotoxins. Consumers that are experiencing immune system impairments are at high risk from mycotoxin contaminated products. Mycotoxin & contaminant testing has been done regularly with a High Performance Liquid Chromatograph with a Fluorescence Detector and a Post Column Reactor.

Terpenes Profiling

Terpenes (TUR-peen) are a large class of organic hydrocarbons produced by a wide variety of plants, and are referred to as terpenoids when denatured by oxidation (drying and curing the flowers). They are the main building block of any plant resin or "essential oils" and contribute to the scent, flavor, and colors. Some are known to have medicinal value. Our test includes: α-Pinene, Camphene, Myrcene, β-Pinene, 3-Carene, α-Terpinene, Ocimene-1, Limonene, p-Cymene, Eucalyptol, g-Terpinene, Terpenolene, Linalool, Isopulegol, Geraniol, β-Caryophyllene, Humulene, Nerolidol-1, Guaiol, Caryophyllene Oxide, α-bisabolol.

Residual Solvent Analysis

Residual solvent analysis is important for any highly-concentrated forms of cannabis. When butters, oils, wax and shatters are created, solvents are used to extract the cannabinoids from the physical plant material. There are three classes of residual solvents based on their assessed risk to human health. Repeated exposure to residual solvents can cause significant health issues to consumers, including allergic reactions, headaches, nausea and more. Most often, residual solvents are analyzed with a Gas Chromatograph with an FID detector and a headspace autosampler.

Pesticide & Herbicide Analysis

Pesticides, herbicides and insecticides can cause severe health risks to consumers of cannabis products. The chemicals that are used to create the pesticides can have side effects that can pose serious health problems for those who use cannabis. Pesticides are chemicals that are used to kill off fungus, insects and bacteria, among other things. Understanding what is being ingested, whether the product is inhaled or consumed, is pertinent in maintaining a safe and effective product. Dangerous side effects from pesticides include liver damage, cancer and decreased muscle function, to name a few. The exposure hazard to people with weaker immune systems could pose life threatening side effects. Promising that products are free of pesticides, fungicides or insecticides is not only good for your business, but is also good for the safety and well-being of your clientele. Pesticide qualification and quantification can be performed with mass spectrometers, which are the most sensitive at detecting the largest number of pesticides.

Heavy Metal Analysis

ICP/MS and AA Spectrophotometers have been reliable sources of instrumentation to test for heavy metals. The significance in testing for metals, such as lead, mercury, cadmium and arsenic is imperative. Reducing the exposure to these heavy metals will reduce the risk of adverse health effects, especially in those consumers who have an already compromised immune system.

Our Executive Team

People behind PharmLabs' high quality services.

Greg Magdoff - COO/Founder

Greg has an extensive background in business marketing and hands-on experience with chemical science; specifically chromatography. Greg, who graduated from San Diego State University with a Bachelor of Science in Business Marketing; worked for over a decade in one of the largest sales and marketing brokers in the United States representing major clients such as GlaxoSmithKline, Johnson and Johnson, Del Monte Foods, Delta/Moen, Quaker and Gatorade. Greg also managed a Southern California Division of nearly 100 Territory Sales Specialists for over 6 years. Greg also helped design and debug a business solutions software product for scientific laboratories across the country.

Dr. Robert Brodnick - Laboratory Director PharmLabs Long Beach, CA /Quality Assurance Officer

Dr. Robert Brodnick comes to the PharmLabs executive team with an exceptional leadership background in regulated laboratories, consulting and food safety.

Robert completed his M.S. and Ph.D. in Biological and Analytical Chemistry at the University of North Carolina-Chapel Hill, and was directly commissioned to the rank of Captain into the U.S. Army Medical Services Corps. As Physiology and Immunology Branch Chief at the U.S. Army Medical Research Institute of Chemical Defense, CPT Brodnick led a staff of 40+ civilian and soldier-scientists developing medical countermeasures for chemical warfare agent exposure. Robert concurrently launched a collaborative government/private sector initiative to develop nitric-oxide based therapies to treat cutaneous battlefield wounds. His contributions to combat casualty care research continued in 2012 when Brodnick deployed to Afghanistan in support of Operation Enduring Freedom to execute a Vice Chief of Staff initiated mission to evaluate a blood biomarker diagnostic for concussion. Upon return, Robert was assigned to the Tripler Army Medical Center in Honolulu, HI, where he continued evidenced-based research into advanced wound care. He was promoted to the rank of Major and filled the role of Deputy Commander at the US Army Forensic Toxicology Drug Testing Laboratory. He oversaw testing of nearly one-million samples per year, and was a member of the DOD Drug Demand Reduction Program Quality Assurance Inspector General team - a body that inspects and certifies the DOD drug testing labs. Robert consulted or testified in over 100 service-member cases as a court-qualified expert witness in cannabis and other drug toxicology, analytical testing, and human performance and behavior. MAJ Brodnick was honorably discharged from service and joined Food Safety Net Services, a nationwide network of thirteen ISO 17025 accredited food testing labs. As Chief Science Officer, he was responsible for modernizing enterprise quality systems, maintaining ISO 17025 accreditation, and growing a team of top scientists and consultants. Robert’s independent consulting engagements included contributing to the business plans and license applications for multiple cannabis production and analytical testing facilities.

Robert comes to PharmLabs to lead Long Beach cannabis testing operations, which provide cannabis compliance and quality testing services to the white-hot Los Angeles metro area. Robert will also serve as PharmLabs’ executive Quality Assurance Officer, supporting ISO 17025 accreditation and corporate/technical development of the rapidly expanding cannabis testing network.

Jaclyn Mauser - Laboratory Director PharmLabs San Diego, CA

Jaclyn graduated from Clemson University with a BS in Microbiology and a minor in Environmental Science and Policy. She has extensive professional laboratory experience as a food Microbiologist for Silliker Food Safety and Quality Labs and IEH Laboratories and Consulting; a Lab Pack Chemist for TIER Environmental Remediation; a Cell Natural Technology Research Associate for Diana Plant Sciences; a Crop Genetics, Maize Molecular Biology and Soybean Transformation Research Associate for DuPont and as Laboratory Supervisor/Microbiologist for SC Laboratories. Having moved to the west coast in June 2012 and to the San Diego area in Nov of 2015, Jacky is using her passion for microbiology and plant science as an opportunity to help revolutionize the cannabis industry. She sees her love and 6 years of tissue culture as an excellent application for cannabis research and development and believes this is the future in the making. Besides being stoked on science, Jacky loves live music, hanging out with her border collie, holistic nutrition, the beach, and peaceful living.

Dr. William English - Laboratory Director PharmLabs Kahului, HI

Dr. William English, an Oahu resident, brings twenty years of analytical chemistry experience to the Hawaii pharmacology testing market. Will’s first job as an analytical chemist was modifying old HP GC-FID’s to test for atmospheric pollutants in remote locations. After graduate school he joined the US Army as a biochemist. His first assignment was at the US Army Medical Research Institute of Chemical Defense where he was a primary investigator studying organophosphate poisoning in biological matrices. He quickly was promoted to the position of Chief of the NeuroBehavioral Toxicology Branch. Will supervised eight senior scientists and over 40 technicians as they tackled the issues around chemically induced neuro-crisis. After a fun and exciting year in Afghanistan Will decided that he never wanted to be cold again and put in for a transfer to Hawaii at the Tripler Forensic Toxicology Drug Testing Laboratory. At the Tripler Forensic Toxicology Drug Testing Laboratory Will was initially assigned as the Chief of Confirmation where he was responsible for the Extractions, GCMS, and LCMS sections. Will left active duty in 2013 and in 2014 took the Technical Director position at the same laboratory. During his time at the drug lab Will developed and validated the hydrocodone/hydromorphone and benzodiazepine GCMS test. He also brought major changes to the MDA/MDMA test procedure. Will is excited to utilize all his prior 20 years of knowledge and experience in the laboratory to legitimize the cannabis industry by ensuring fast and accurate laboratory testing for the purity and potency of cannabis and all cannabis related products. Will is also eager to conduct research and studies involving cannabis that can help unlock some questions the scientific community has.

Jihui Li - Laboratory Director PharmLabs Coachella Valley, CA

Jihui Li came to the United States after earning her B.Sc. in Analytical chemistry from Shantou University. Through a partnership with the University of Texas at El Paso, she demonstrated her skill and passion for chemistry during a summer internship, that paved the way for her acceptance into their Chemistry Graduate Program. Her individual research project during her graduate studies involved molecular cloning, expression, purification and analysis of a mutant human chaperonin protein that is implicated in the neurodegenerative disorder, MitCHAP-60. Jihui Li graduated from University of Texas at El Paso in December of 2016 with a master’s degree in Biochemistry with an overall GPA of 3.8. She was also awarded with Best Thesis of Year 2016 within College of Science at UTEP. Through an alumnus of her lab, she was introduced to the Cannabis testing field with an offer to train at C4 laboratories, which sparked an immense passion for the field, given the exciting capacity for future therapeutic applications. Outside of the lab she enjoys playing basketball and hiking.

Amber Myers - Operations Manager

Amber Myers graduated from Sonoma State University with a BA in Economics with a minor in Mathematics. She joined the PharmLabs team after years of doing contract graphic design for the laboratory’s marketing materials and advertisements. Her experience in administration, marketing and design make her well suited to help PharmLabs grow and ensure cannabis users have the information need to make informed consumption decisions. From D.A.R.E. Graduate, to now canna-activist, Amber hopes to see Federal regulations on cannabis eliminated in order to allow for unrestricted research and encourage greater understanding of the medicinal benefits of cannabis. When Amber is not working to advance the cannabis industry, she can be found sewing, swimming in the ocean or singing karaoke.

Emanuele Tozzato - Laboratory Informatics

Emanuele joined PharmLabs from day one as the technical innovator and problem solver. Under the feedback loop offered by PharmLabs, he built the cutting edge LIMS (Laboratory Information Management System) used at PharmLabs, and he's now working full-time at 42+0 Technologies on PharmWare Cannabis LIMS, the product that was born from this collaboration. He previously served as a software artisan for Sony PlayStation, Miley Cyrus, Sleepy Giant, VIPC, FocusVision, 2night and very many others.

Our team is always growing! Send us an email to become part of PharmLabs.

Frequently asked questions (FAQ)

1. I’m a new client, how do I get started?

Create your client Account by clicking on "Create Account" from the PharmLabs portal of your chosen laboratory. Once you’ve created your account, you can bring your samples in during operating hours. We’re open to the public from Noon 12pm- 5pm, Monday through Friday. Where a pick-up service is available, you can call the laboratory for a quote.

2. What are our hours of operation?

We’re open to the public Monday–Friday from 12pm-5pm. We reserve the morning for the scientists to prepare the laboratory and instruments for the day's testing.

3. How much of a sample do I need to provide for testing?

Standard Potency1g1g1.5ml1.5g/mlEntire packaged edible
Premium Potency1g1g1.5ml1.5g/mlEntire packaged edible
Standard Residual Solvent1g1g1.5ml1.5g/mlEntire packaged edible
Premium Residual Solvent1g1g1.5ml1.5g/mlEntire packaged edible
Standard Pesticide1g1g1.5ml1.5g/mlEntire packaged edible
Premium Pesticide1g1g1.5ml1.5g/mlEntire packaged edible
Terpene1g1g1.5ml1.5g/mlEntire packaged edible
Standard Microbiological1g1g1.5ml1.5g/mlEntire packaged edible
Premium Microbilogical2g2g2.5ml2.5g/mlEntire packaged edible
CA Full Compliance7g7g7ml7gEntire packaged edible
Above are the amount of samples needed for each service offered shown in units of g or ml

4. How long does my sample take to test?

All potency test results will be posted to your account the next business day, by midnight or sooner all dependent on workflow, sample load and time/day of the week. We strive to get results to you within 24hrs or sooner! Wet flower samples will take longer than 24hrs. Terpene, Residual Solvent and Microbiological testing services can take up to 3 days for results. For Pesticide Analysis, please consult the laboratory.

5. How will I receive my test results when they are completed?

We’ll send you a text message the second your results are posted to your PharmLabs dashboard, letting you know the results are ready to be viewed. Then, you can log-in from anywhere you have internet access and check your results. Make sure you click “LAB TEST” next to your name at the top right of the screen to find your personal lab results.

6. Can I mail you my samples/how do I drop off samples?

Where a pick-up service is available, you can call the laboratory for a quote. You can come into the laboratory during open office hours, Monday through Friday, Noon-5pm. Feel free to drop samples through our mail slot in the front door, make sure you label your samples if you do.

7. How much does testing cost?

We Offer a variety of testing including Potency, Microbiological, Pesticides, Residual Solvents and Terpene Profiling. Tests can be purchases individually or in packages of 10, 20, 50 or 100. One Hundred packs come with FREE PHOTOS.

From the PharmLabs portal of your chosen laboratory, please follow this menu link for the pricing chart: About & Services >> Our Service Pricing.

8. How can I pay?

We accept Cash, Check, Money Orders and Credit Cards.

9. What is the difference of a Standard Potency test (Gas - GC/FID) and a Premium Potency Test (Liquid -HPLC)?

The GC for Standard Potency is an instrument which uses heat to separate the cannabinoids. This process activates any acidic versions of cannabinoids (THC-A, CBD-A) and will give a total potential readout of THC (delta-9), CBD and CBN. This test will best mimic smoking, vaporizing and dabbing.

The HPLC for Premium Potency is an instrument which uses high pressure and liquid to separate the cannabinoids and read them through the column. Since this process does not use any heat, it can read many more cannabinoids, such as the ones we test for: THC (delta-9), THC-A, CBD, CBD-A, CBN and CBG. This process is best for mimicking eating cannabis or applying it to the skin.

10. Can I post my results to WeedMaps?

Yes! Sign into your SD PharmLabs Account. Click your Name. Click Edit Integrations. Select WeedMaps. Copy and paste your WeedMaps URL Web Address. Tab down. Wait for information to load. Select if you’d like your results to load automatically or if you’d like to approve in WeedMaps before. To release you results onto WeedMaps, just mark your results as public by clicking the “Private” button. This will happen instantly. Please contact the lab for additional assistance with your WeedMaps and PharmLabs integration.

Contact Us


+1 (619) 356-0898