Last updated: September 23, 2019

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PharmLabs™ LLC provides the cannabis community and beyond with chemical and biological laboratory testing and analytic services to ensure consumers have access to safe medicine.  

  • Through laboratory testing, PharmLabs™ LLC 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™ LLC 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™ LLC offers potency, terpene, residual solvent, pesticide, mycotoxin, heavy metal and microbiological testing for the cannabis community and beyond!

California Compliance Testing Requirements (For Pricing Click Here)

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

Cannabinoid & Potency Testing (For Pricing Click Here)

Our Cannabinoid Potency test offers a quantitative analysis of several common psychoactive compounds found in cannabis and cannabis derived products. Our cannabinoid potency 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 Cannabinoid Potency 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 all cannabis and cannabis related products.  We use an established scientific method utilizing a High-Pressure Liquid Chromatography (HPLC) 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 unless specifically requested in mg/g, mg/mL, and/or mg/Unit.

With the use of Potency Testing we have the ability to help our clients with three of our most popular and important services:

1.     Early Leaf Cannabinoid Ratio Detection Testing

Do not waste your time and money transitioning into flower and not knowing! If you goal is to grow CBD rich medicines or achieve a specific THC:CBD ratio then we can help! We can detect CBD/THC 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.  

Click Here For More Information

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

3.     Homogeneity Testing

Homogeneity testing is NOT required for CA Compliance Testing but is a good idea for packaged cannabis goods to ensure you have the highest possible quality product with consitent dosing.  It requires a minimum of 6 cannabionid potency tests of separately packaged products for total THC or CBD. 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 analysing 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 HPLC 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. Homogeneity testing is for informational purposes only and for the select companies that want to ensure excellence and the highest quality products on the market. 

Microbiological Testing (For Pricing Click Here)

Results same day with rush payment! 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 residual moisture will also encourage bacterial growth. 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. If your cannabis or infused cannabis products are not properly tested, the medicine you are consuming can be contaminated with a variety of harmful pathogens. 

PharmLabs LLC Microbiological Screen is compliant with Bureau of Cannabis Control regulations and will include that the detection of Shiga toxin–producing Escherichia coli is not detected in 1 gram; Salmonella spp. is not detected in 1 gram; andPathogenic Aspergillus species A. fumigatus, A. flavus, A. niger, and A.terreus are not detected in 1 gram. Using qPCR and differential selective medium technology, we can identify, detect and quantify these microbial contaminants as total plate counts (CFUs) or in parts per million (ppm).  

Micro organisms in cannabis can be an indication of spoilage, levels of sanitation and the potential for human pathogenesis.  We recommend all manufacturers to test their products before they hit the dispensaries/store shelf and also seek consulting advice on how to properly package and store the edible to increase stability for its shelf life.  All of these preventative actions can help prevent consumers 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 LLC Mycotoxin Screen is compliant with CA Bureau of Cannabis Controls (BCC)  regulations and will include the detection of Aflatoxin (B1,B2,G1,G2) and Ochratoxin A. Using an LC MS/MS, we can quantify in parts per billion (ppb) the exact amount of Aflatoxin and Ochratoxin present. 

Residual Solvent Testing (For Pricing Click Here)

Our Residual Solvent Testing offers a quantitative analysis of 20 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 consumers. 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. 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:
1-2-Dichloroethane  (12-Dich)
Heptane  (Hep)
Acetone  (Acet)
Hexane  (Hex)
Acetonitrile  (Acetonit)
Isopropanol  (2-Pro)
Benzene  (Ben)Methanol  (Metha)
Butane  (But)Methylene Chloride  (MetCh)
Chloroform  (Clo)O, M, P-Xylene  (tot-xyl)
Ethanol  (Ethan)Pentane  (Pen)
Ethyl Acetate  (EthAc)
Propane  (Prop)
Ethyl Ether  (EthEt)
Toluene  (Toluene)
Ethylene Oxide  (EthOx)
Trichloroethylene  (TriClEth)


Pesticide Testing (For Pricing Click Here)

We test for 66 pesticides commonly used during different states of growing cannabis. Our method for determining Pesticide concentration by LC MS/MS and GC MS/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 pulverizing the plant material into a homogenous powder to ensure all parts of the flower are represented in the analysis.  The material is then extracted in a 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 products.

Once the sample prep is complete, the sample is analyzed on a Triple Quadrupole Mass Spectrometer which is coupled to an HPLC or a GC.  Our quantitation range spans nearly 3 orders of magnitude, ranging down to the low parts per billion for most 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 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.
Baygon (Propoxur)
Methyl Parathion
Piperonyl Butoxide
Spinetoram J, L
Spinosad A
Spinosad D
Ethoprophos (Prophos)

Heavy Metal 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), and cadmium (Cd) in the soil and water tend to be more pervasive. Certain packagings have been found to contain heavy metals, where these metals have been proven to leech ino products at high contaminating levels, failing batches. 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 23 major terpenes found in cannabis. Why does 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 produced by Cannabis, some only in trace amounts, while 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: 

Caryophyllene Oxide

Click Here For More Information on Terpenes

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 Testing (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. Water activity at or above .85 Aw that is found in a product is an indicator that there is the ideal conditions for bacterias to grow and contaminate the product in the sealed package.

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

We analyze a cured 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.

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

ISO is an acronym for the International Organization for Standardization. ISO/IEC 17025 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 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 was initially issued by the International Organization for Standardization in 1999. There are many commonalities with the ISO 9000 standard, but ISO/IEC 17025 is more specific in requirements for competence. The ISO/IEC 17025 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 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 determines the correctness and reliability of the tests and calibrations performed in the laboratory. Laboratories use ISO/IEC 17025 to implement a quality system aimed at improving their ability to consistently produce valid results.[2] It is also the basis for accreditation from an accreditation body. You can trust that your testing results with PharmLabs™ 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! Our mission is to provide random batch sampling for the cannabis industry using a proven scientific method to ensure accurate representation of a submitted laboratory sample. PharmLabs LLC will ensure that you and your products are compliant with the new California law for cannabis random sampling and transportation. This proven random sampling method will increase testing accuracy by ensuring the test sample is an accurate representation of a batch and ensure the health and safety of consumers.
One of our trained laboratory staff and/or a third party courier service that is licensed, bonded and specializing in laboratory sampling and transportation will come on site to your location. The sampling specialist will collect samples using a scientifically proven method for random sampling.


The cost for certified random sampling and safe and secure transportation to the laboratory starts out at only $250 per visit! Sampling includes safe and secure transportation and there are no limits on the number of samples to be collected and transported. 


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 CA 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.
      • All potency test results will be posted to your account within 3 business days.
      Amount of sample required: 

      Cannabinoid / Potency
      1g1g2.5ml2.5g/mlEntire packaged edible
      Pesticide Screening
      2g2g2.5ml2.5g/mlEntire packaged edible
      Heavy Metal Screening
      2g2g1.5ml1.5g/mlEntire packaged edible
      2g2g2ml2g/mlEntire packaged edible
      Microbial Testing
         4g/mlEntire packaged edible
      n/an/an/an/a10 Entire packaged edibles
      Residual Solvent
      1g.5g1ml1g/mlEntire packaged edible
      Terpene1g.5g1ml1g/mlEntire packaged edible
      Above are the amount of samples needed for each service offered shown in units of g or ml

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

      • Review current lab results  
      • Review a complete history of 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 directly via a public URL over the web
      • Share their certified results publically through our PUBLIC CATALOG 
      • Purchase testing credits  
      • Review billing and invoices
      • Place QA 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 clients unique personal web pages along with important files they can print or save for their records. The clients complete history of all lab results will be stored safely to their account for them to access any time needed.

      • One important file will be a PharmLabs™ 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, medium and large formats. QR code labels and City 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 LOOK FORWARD to hearING from you soon!