Last updated: November 27, 2018

Always AccurateAffordable and Fast!


PharmLabs Long Beach provides the cannabis community and beyond with laboratory testing and analytic services to ensure consumers have access to safe medicine.  

  • Through laboratory testing, PharmLabs Long Beach will ensure safe medicine for the cannabis community by testing for contaminants that may result from the growth, extraction and packaging processes.

  • Through laboratory testing, PharmLabs Long Beach will arm consumers in the cannabis community with the proper information to make an informed decision on proper dosing and type of medicines they require to best combat their specific medical condition, or desired euphoric effect.

PharmLabs Long Beach offers potency, terpene, residual solvent, heavy metal, microbiological and pesticide testing for the cannabis community and beyond!

California Compliance Testing Requirements (For Requirements Click Here)

Review our guide to California’s compliance testing requirements with our easy to follow chart!

Potency/Cannabinoid Testing (For Pricing Click Here)

Our potency/cannabinoid test offers a quantitative analysis of several common psychoactive compounds found in cannabis and cannabis derived products. Our potency/cannabinoid test establishes the amount of Tetrahydrocannabinol (THC), Tetrahydrocannabinol Acid (THCA), Cannabidiol (CBD), Cannabidiol Acid (CBDA), Cannabigerol (CBG) and Cannabinol (CBN), contained in a submitted sample of cannabis or cannabis product.

Our POTENCY/ CANNABINOID test separates the acidic compounds from the neutral compounds and defines the decarboxylation ratio of a sample which is extremely helpful in formulations of a product and the dosing of a consumer. We recommend using our CANNABINOID POTENCY TESTING for any edibles, tincture or topicals that will not be combusted during consumption.  We use an established scientific method utilizing an Agilent High-Pressure Liquid Chromatography (HPLC) with a Diode Array Detector (DAD) for the separation and quantification of THC, THCA, CBD, CBDA,  CBG, and CBN.  All results are submitted as a percentage of the dry weight of the entire sample.

With the use of Potency Testing we have the ability to help our clients with two of our most popular and important Special Services:

1.     Early Leaf Cannabinoid Ratio Detection Testing

Do not waste your time and money transitioning into flower and not knowing! Knowledge is power! If your goal is to grow CBD rich medicines or achieve a specific THC: CBD ratio then we can help! We can detect CBD rich medicines from a leaf of a young plant and save you months of your precious time and tons of your hard earned money from a simple test.  

2.     Harvest Optimization Testing

When is the exact best time to harvest your cannabis crop to get the maximum potency out of your flower? We can help! Do not spend all your hard earned time and money and not get the maximum reward from your crop!

With harvest optimization testing we recommend our clients to test a sample from their crop:

1) A week before their normal harvest time

2) At their normal harvest time

3) A week after their normal harvest time

Using the comparison of these results, growers can further refine the ideal harvest conditions for your desired results.

Homogeneity Testing (For Pricing Click Here)

Homogeneity testing is required for only Edibles, Tinctures and Suppositories by MAURCSA. It requires 10 tests for total THC or CBD of 10 separately packaged products. Although hundreds of different cannabinoids have been identified in cannabis, our Homogeneity Test establishes the amount of Total Tetrahydrocannabinol (THC) and Total Cannabidiol (CBD) contained in a submitted sample of cannabis or cannabis product.

Our laboratory shall perform a homogeneity test for THC or CBD, whichever is purported by the manufacturer to be the largest ingredient content, for each batch of edible medical cannabis product. If the amounts of THC and CBD are very similar (near 1:1), the laboratory shall test for homogeneity of THC.

We use an established scientific method utilizing an Agilent Gas Chromatography with a Flame Ionization Detector (GC/FID) for the quantification of THC, THCA, CBD, CBDA,  CBG, and CBN.  All results are submitted as a percentage of the dry weight of the entire sample.

The batch is homogeneous and “passes” homogeneity testing if the relative standard deviation, with no outliers, as assessed using the Grubb’s outlier test with a significance level of 0.05, is less than 15% on average. If the relative standard deviation is greater than 15%, the batch “fails” the homogeneity test. According to CA law if a homogeneity test is not performed or if a batch fails homogeneity testing, the batch fails and shall be destroyed. If the product batch passes homogeneity testing, the laboratory shall perform all other analyses required under the law.

Microbiological Testing (For Pricing Click Here)

Results in 48-72hrs! The same conditions that are ideal for the cultivation of cannabis are also ideal for the germination of hundreds of bacteria and fungi which are found in the water, soil and air. We must remember that yeast and molds can grow in decaying vegetation and the residual moisture will also encourage bacterial growth. Because of this, microbiological hazards in cannabis absolutely need to be addressed.  If cannabis and infused products are not properly tested, the medicine being consumed can be contaminated with a variety of harmful pathogens.  

PharmLabs Long Beach Microbiological Screen is a series of tests that report the total amount of Yeast, Mold and Aerobic bacteria in a sample reported in Colony Forming Units (CFU).

PharmLabs Long Beach Microbiological Screen is compliant with CA Bureau of Medical Cannabis Regulation (BMCR)  law and will include the detection of total Yeast and Mold, total Aerobic bacteria, Aspergillus sp; Salmonella; E.coli; Staphylococcus aureus; Pseudomonas aeruginosa.  Using 3M petrifilm and differential selective medium technology, we can identify, detect and quantify these microbial contaminants as total plate counts (CFUs).  All assays are ISO certified for design and manufacturing and are included in the official methods of analysis of the Association of Official Analytical Chemists International (AOAC).  Currently, no other cannabis testing laboratory in the US offers a more comprehensive microbiological screen than PharmLabs Long Beach™.

We will now have the ability to screen for three of the largest food-borne pathogens which is especially important when it comes to the topic of edibles. Forty-nine of the top fifty food companies in the US use 3M Petrifilm technology. Microorganisms in cannabis can be an indication of spoilage, levels of sanitation and the potential for human pathogenesis.  We recommend all edible makers test their product before it hits the dispensaries/store shelf and also seek consulting advice on how to properly package and store the edible to increase its shelf life.  All of these preventative actions can help prevent people from getting sick and also increase the credibility of the cannabis industry as a whole.

Mycotoxins Testing (For Pricing Click Here)

Also under ideal conditions, some fungi can produce toxic metabolites known as mycotoxins (ex. Aflatoxin and Ochratoxin) which can infect immunocompromised humans and cause allergic, aflatoxin and pathogenic infections such as the disease Aspergillosis.

Especially for those with compromised immune systems, Microbiological contamination can be very harmful and dangerous to one's health. Scientific studies suggest continuous exposure to a specific mycotoxin often results in an allergic reaction resulting from buildup over time, that has the potential to be lethal to some patients even without a compromised immune system.

PharmLabs Long Beach Mycotoxin Screen is compliant with CA Bureau of Medical Cannabis Regulation (BMCR) law and will include the detection of Aflatoxin (B1, B2, G1, G2) and Ochratoxin A.

Using ELISA technology, we can quantify in parts per billion (ppb) the exact amount of Aflatoxin and Ochratoxin present. All assays are ISO certified for design and manufacturing and are included in the official methods of analysis of the Association of Official Analytical Chemists International (AOAC).  Currently, no other cannabis testing laboratory in the US offers a more comprehensive microbiological screen than PharmLabs Long Beach™.


Residual Solvent Testing (For Pricing Click Here)

Our Residual Solvent Testing offers a quantitative analysis of 10 solvents commonly used in the extraction of cannabinoids to make concentrated forms of cannabis. If a cannabis concentrate is not purged properly to eliminate solvents used in the extraction process; the residual solvent can remain in the concentrate when used by patients. These residual solvents remaining in the concentrates can be very harmful when inhaled or ingested. Residual solvents are typically not acutely toxic but may have a long-term effect on exposed individuals. An exposed person may exhibit eye, nose, and throat irritation, nausea, headaches, dizziness, fatigue, allergic skin reaction and at higher levels can cause central nervous depression, respiratory and cardiac arrest. Click here for the permissible and restricted solvents in the manufacture of cannabis preparations, (taken from the American Herbal Pharmacopeia). We use an established scientific method using a Gas Chromatography Headspace Analyzer with a Flame Ionization Detector (GC/FID) for the separation and quantification of:













Pesticide Testing (For Pricing Click Here)

We test for 52 pesticides commonly used during different states of growing cannabis. Our method for determining Pesticide concentration by LC/MS is completely quantitative and involves an extensive sample prep procedure to ensure high sensitivity.  All samples are run with accompanying standard curves containing known concentrations of pesticide standards as well quality control samples to ensure high accuracy and precision.  The process begins by drying and pulverizing the plant material into a homogeneous powder to ensure all parts of the flower are represented in the analysis.  The material is then extracted in a special solvent that solubilizes pesticides, and these compounds are then further separated from interfering compounds using additional purification steps.  We have developed our sample prep process independently in our lab and we do not use any commercially available system to extract pesticide from the flower.

Once the sample prep is complete, the sample is analyzed on a Triple Quadrupole Mass Spectrometer which is coupled to an HPLC (Agilent 1100).  Our quantitation range spans nearly 3 orders of magnitude, ranging from the low parts per billion up to 1 ppm for most of the compounds.  Calibration curves and quality control analysis ensure linearity in quantitation, and this analysis is included in the report.

Pesticide residues in cannabis that has been dried and is inhaled have a direct pathway into the bloodstream. Like other foodstuffs, contaminants consumed through foods mixed with cannabis may present an exposure hazard. It is logical to assume that the prohibition on the use of a federally registered pesticide would result in a zero tolerance or allowable residue on the consumed cannabis. However, three states allow cannabis to contain pesticide residues of any federally registered pesticide up to a level less than the lowest legal residue of the pesticide on food. Oregon has set a generally acceptable level of .1ppm. This allowance of pesticide exposure does not account for the lack of EPA review of cumulative risk or toxic body burden associated with the additional exposure to pesticide residues from cannabis. Very little peer-reviewed research has been published on the health and safety risks associated with pesticides on dried cannabis. However, the tests that have been performed show cause for significant consumer concern, particularly medical patients or those with elevated risk factors. Studies on tobacco provide good indications of the threats that may arise from smoking pesticide-laced products and, thus, the importance of state enforcement. A 2002 study, published in the Journal of Chromatography A, found that 1.5-15.5% of pyrethroid insecticides on treated tobacco is transferred to cigarette smoke. Significant levels of pesticide residues were found within the cigarette’s cotton filter. In addition to the transference of pesticide residue from the dried plant to the smoker, burning can cause pyrolysis (decomposition) of the pesticide, forming toxic mixtures or other toxic pesticide contaminants. Additionally, unlike most packaged tobacco products, cannabis is not typically filtered when its smoke is inhaled, and therefore smokers may expose themselves to much higher levels of pesticides and degradates.

Pesticides Currently Tested by PharmLabs Long Beach
  Spinosad A  
  Ethoprophos (Prophos)  
  Spinosad D  
  Piperonyl butoxide  

In order to help you stay compliant with the California’s BMCR, the list of pesticides will be updated once the State has finalized the compounds required for testing. 

Heavy Metals Testing (For Pricing Click Here)

Unfortunately, there is a potential of heavy metal exposure with the use of cannabis from cultivating the plant itself, its commercialization, and its intake methods. Soils used for growing cannabis outdoors are frequently in peri-urban locations or near abandoned industrial and mining sites. Consequently, the presence of pollutant metals such as lead (Pb), mercury (Hg), arsenic (As), cadmium (Cd) and even chromium (Cr) in the soil and water tend to be more pervasive. Certain locales have been found to introduce specific contaminants such as high levels of mercury (Hg) in a particular island brand, excessive sulfur (S) in plants cultivated near a paper mill or coal furnace, and even high levels of uranium (U) in regional phosphate fertilizers. Cultivation soils used indoors can also present problems especially if non-certified fertilizers and/or pesticides containing Pb or As are used. As cannabis is a commodity typically sold by weight, some street dealers have been known to deliberately "lace" product to increase its weight. Pb is commonly used for this and in excess amounts is visible due to its consistency and white color.

Terpene Testing (For Pricing Click Here)

Our Terpene Testing offers a quantitative analysis of 21 major terpenes found in cannabis. Why do certain cannabis strains smell and taste a certain way? Terpenes! Terpenes are a diverse group of organic HydroCarbons (C5H8), produced by a wide variety of plants. They are important building blocks for certain odors, hormones, vitamins, pigments, steroids, resins, essential oils, and CANNABINOIDS! Terpenes interact with each other synergistically for a range of different smells, qualities, and physical effects.

There are over 120 different terpenes that can be manufactured by Cannabis, some only in trace amounts with others around 20 percent. Terpenes are produced in the Trichomes, which are the same glands where THC is produced, comprising between 10 and 20 percent of the total oils produced by the glands. About 10-29 percent of cannabis smoke resin is composed of terpenoids.

In addition to many circulatory and muscular effects, some terpenes interact with neurological receptors, bind weakly to Cannabinoid receptors, alter the permeability of cell membranes and allow in either more or less THC and affect serotonin and dopamine chemistry (neurotransmitters).

We use an established scientific method using a Gas Chromatography Headspace Analyzer with a Flame Ionization Detector (GC/FID) for the separation and quantification of: 

a-Pinene Camphene
Myrcene b-Pinene
3-Carene a-Terpinene 
Ocimene-1 Limonene
p-Cymene Eucalyptol
g-Terpinene Terpenolene
Caryophyllene Oxide

click here for an advanced description of the terpenes PharmLabs Long Beach™ tests for listed ABOVE

Filth and Foreign Material Inspection (For Pricing Click Here)

Our laboratory analyzes all samples under our California Compliance Testing for filth and foreign material present in the sample. “Filth and foreign material” includes but is not limited to hair, insects, feces, packaging contaminants, and manufacturing waste and by-products. 

Water Activity/Moisture Content (For Pricing Click Here)

As part of our California Compliance testing, our laboratory analyzes dried flower harvest-batch samples to determine its water-activity level. If the water activity is at or below 0.65 Aw, the sample “passes” water-activity testing.

Our laboratory analyzes solid and semi-solid edible cannabis products to determine its water-activity level as part of our California Compliance Testing. If the water activity is at or below 0.85 Aw, the sample “passes” water activity testing.

Our laboratory reports the water-activity level of the sample in Aw to 2 significant figures. This information is included on the certificate of analysis when required.

We analyze a dried flower harvest-batch sample to determine its moisture content when required by law. If the moisture content is at 5.0% to 13.0%, the sample “passes” moisture-content testing. Moisture content in percentage to the nearest tenth of one percent, by weight, of the dry sample on the certificate of analysis. By California law, if a harvest-batch sample “fails” water-activity or moisture-content testing, the harvest batch may be returned to the cultivator or person holding title for further drying and curing unless prohibited by these regulations. The harvest batch will then need to be retested before it can be released to consumers.

Label Claim Verification (For Pricing Click Here)

In accordance with the BMCR, PharmLabs Long Beach will verify any claims made on packaging such as terpene profile claims, percentages of THC or CBD and report the verification on the certificate of analysis.

Our TEAM: 


The Founder Greg Magdoff is a cannabis industry expert who has had his hands in the dirt from the very beginning, allowing him to truly understand the cannabis industry from seed to sale. Greg has an extensive background in business marketing and a vast 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 opened the first PharmLabs LLC in 2011 and has continued to launch additional ISO/IEC 17025:2005 accredited cannabis chemical and biological analytical testing laboratories in Hawaii and California over the past few years.

Greg was instrumental in the software development and testing of PharmWare, a Laboratory Information Management System (LIMS), used throughout cannabis analytic laboratories across the country. 

Greg helped create the first laboratory robotics/automation system designed specifically for cannabis laboratory sample preparation known as the CannaDeck. The CannaDeck System is an automation platform including a robotic sample processing system designed to automate sample prep for cannabis analysis of potency, pesticides, heavy metals, terpenes and residual solvents.In addition, the system performs microbiology assays, working with petri dishes as well as 3M PetriFilm Plates via a patent-pending SBS-compliant ProcessorModule. The CannaDeck system also automates ELISA assays, providing a comprehensive automation solution for cannabis testing labs.

Greg also has been very active in helping local municipalities,political groups and government bodies develop clear and concise policies and regulations for the cannabis industry. Greg has devoted a lot of his time to speaking at city council meetings, city planning hearings and community events to ensure a safe and successful cannabis industry.

We are ISO/IEC 17025:2005 Certified! So what does that mean?

ISO is an acronym for the International Organization for Standardization. ISO/IEC 17025:2005 are requirements for the competence of testing and calibration of analytic laboratories and is the main ISO standard used by testing and calibration laboratories. In most major countries, ISO/IEC 17025:2005 is the standard for which most labs must hold accreditation in order to be deemed technically competent. In many cases, suppliers and regulatory authorities will not accept test or calibration results from a lab that is not accredited. Originally known as ISO/IEC Guide 25, ISO/IEC 17025:2005 was initially issued by the International Organization for Standardization in 1999. There are many commonalities with the ISO 9000 standard, but ISO/IEC 17025:2005 is more specific in requirements for competence. The ISO/IEC 17025:2005 standard itself comprises five elements that are Scope, Normative References, Terms and Definitions, Management Requirements and Technical Requirements. The two main sections in ISO/IEC 17025:2005 are Management Requirements and Technical Requirements. Management requirements are primarily related to the operation and effectiveness of the quality management system within the laboratory. Technical requirements include factors which determine the correctness and reliability of the tests and calibrations performed in the laboratory. Laboratories use ISO/IEC 17025:2005 to implement a quality system aimed at improving their ability to consistently produce valid results. It is also the basis for accreditation from an accreditation body. You can trust that your testing results with PharmLabs Long Beach™ will be accurate every time! 

We know how to get the job done right!


PharmLabs' Random Sampling and transportation service makes the testing process a breeze! We provide random batch sampling for the cannabis industry using a proven scientific method to ensure an accurate representation of your product. PharmLabs, LLC will help you stay compliant with California law. Our trained Sampling & Transportation Team is licensed, bonded, and specializes in laboratory sampling and transportation. Please call the lab to schedule Compliance sampling so a trained Sampling & Transportation Specialist can come to your licensed distribution site and perform the necessary Sampling procedure at 760-279-8279.


The cost for certified random sampling and safe and secure transportation to the laboratory can be found here as its own tab on our website. Sampling includes safe and secure transportation and there are no limits on the number of samples to be collected and transported. There is a service fee to show up on site and the first half hour is included in the service fee! Every hour after that in 15 minute increments will be charged at the hourly rate.

Our Compliance testing and a la carte quality assurance testing costs can be found here under the About & Services tab on our website.


Test credits can be purchased over the phone or in person at our laboratory via cash, check, or charge.

  • If you are a first time client, please make a client account and then stop into our laboratory anytime between 9AM and 5PM Monday through Friday.
    • Cannabis product samples for quality assurance (QA) testing can be dropped off in person to our laboratory. Please call the lab to schedule Compliance sampling so a trained Sampling & Transportation Specialist will come to you at your licensed distribution site. 
      • Please utilize PharmLabs Chain of Custody (COC) sheet and fill out completely when submitting samples for QA testing.
      Amount of sample required: 
      Cannabinoid / Potency
      2g 2g 2.5ml 2.5g/ml Entire packaged edible
      Pesticide Screening
      2.5g 2g 2.5ml 2.5g/ml Entire packaged edible
      Heavy Metal Screening
      2g 2g 2.5ml 2.5g/ml Entire packaged edible
      Microbial Testing
      1g 1g 1.5ml 1.5g/ml Entire packaged edible
      1g 1g 1.5ml 1.5g/ml Entire packaged edible
      Homogeneity  n/a     n/an/a n/a 10 Entire packaged edible
      Residual Solvent
      1g 1g 1.5ml 1.5g/ml Entire packaged edible
      Terpene Testing
      1g 1g 1.5ml 1.5g/ml Entire packaged edible
      CA Full Compliance 7g 7g 7ml 7g Entire packaged edible
      Above are the amount of samples needed for each service offered shown in units of g or ml

      PharmLabs Long Beach will provide customers with a unique customer log-in and password to access their own personal PharmLabs Long Beach™ webpage. From this personal webpage customers will be able to:

      • Review their current lab results 
      • Review a complete history of their past lab results with easy to use filters to help you find information fast
      • Print their Certificate of Analysis (COA) complete with detailed graphs illustrating the results.
      • Print their certified results labels (Formatted for Avery or any other generic office supply brand self adhesive labels)
      • Share their certified results via a public URL over the web
      • Place testing orders with previously purchased credits.
      • Post results automatically to WeedMaps
      High resolution photographs of samples (On Certificate of Analysis and Public Results Catalog) are available for a small fee!

      Kosher Kush - THC: 18.61 %, CBD: 0.23 %, CBN: 0.00 %, Moisture: 4.4%

      Lab results will be posted to the client's unique personal web pages along with important files they can print or save for their records. The client's complete history of all lab results will be stored safely into their account for them to access any time needed.

      • One important file will be a PharmLabs Long Beach Certificate of Analysis (COA) highlighting our findings for each product submitted for testing. We recommend our clients to print this official report to display to their customers and help increase consumer confidence and awareness. The Certificate of Analysis (COA) come in two formats including a "Compact" and "Full" version.
      • Some of the other files include the Certificate of Analysis (COA) formatted into various labels in small, mediumm, and large formats. QR code labels and Code Compliance labels are included as well. We recommend our clients to display these labels on product packaging to ensure safety and increase consumer awareness.

      We hope to hear from you soon!