Most people who look at a COA stop at the THC percentage. That’s the least useful number on the document for predicting what the product will actually do. The terpene panel is what tells you how the product will feel. The contaminant panel is what tells you whether it’s safe. And the batch number is what tells you whether the COA is real and belongs to the product in your hand rather than something the brand tested two years ago. A COA is a 30-second document that takes about 90 seconds to read correctly. Here’s how.
🧪 Lab Tested | 👩💼 Woman-Owned | 🏆 Est. 2017
What Is a COA and Why It Matters
A COA (Certificate of Analysis) is a document produced by a third-party laboratory that has tested a specific batch of a cannabis product. The key words are “third-party” and “specific batch.” Third-party means the lab has no financial relationship with the brand whose product it’s testing. Specific batch means the COA applies to the exact lot of product that left the manufacturer at a particular time, not to the product formula in general, not to a previous batch, and not to a different potency of the same product.
An ISO/IEC 17025-accredited lab meets international standards for testing accuracy and equipment calibration. Accreditation means the lab’s methods have been independently verified. A COA from an accredited lab carries significantly more weight than one from an unaccredited lab. When evaluating a COA, the first thing to check is whether the issuing lab name appears on the document and whether that lab holds current accreditation. Most reputable labs publish their accreditation status on their website.
The reason COAs matter in the hemp and cannabis category specifically is that the FDA does not actively regulate hemp-derived cannabinoid products. Without COA verification, consumers have no reliable way to confirm that a product contains what it claims, is free from contaminants, or is legal (Delta-9 THC below 0.3% for hemp products). The COA is the primary consumer protection mechanism available in this market.
Reading the Cannabinoid Panel
The cannabinoid panel lists every cannabinoid detected in the product and its concentration, usually expressed as a percentage of total product weight or as milligrams per gram (mg/g). The cannabinoids typically reported include THC isomers (Delta-9, Delta-8, Delta-10), CBD, CBG, CBN, CBC, and their acidic precursor forms (THCa, CBDa, CBGa).
Key numbers to look for
Delta-9 THC percentage. For a product to be legally classified as hemp under the 2018 Farm Bill, Delta-9 THC must be at or below 0.3% by dry weight. If a product is labeled hemp-derived and the COA shows Delta-9 above 0.3%, it is legally cannabis, not hemp, and may be illegal in states without recreational or medical cannabis programs.
Total THC vs Delta-9 THC. Some labs report “total THC,” which includes THCa converted to its equivalent Delta-9 THC value. Some products pass the Delta-9 limit on the raw measurement but fail when total THC is calculated. Pay attention to which figure is being used, because the label “Delta-9 THC” and the label “total THC” are not interchangeable on a COA.
Label claim accuracy. If a product claims 25mg Delta-8 per serving, the COA should support that claim within a reasonable tolerance (typically ±20% for cannabis products). A COA showing 8mg when the label claims 25mg is a significant discrepancy that should disqualify the product from purchase.
Delta-9 THC
The primary psychoactive cannabinoid. Must be at or below 0.3% by dry weight for legal hemp classification. Products at 0.0% or ND (non-detected) have the lowest drug test risk. Any detectable Delta-9 carries real drug test risk with daily use.
Delta-8 THC
Psychoactive, partial CB1 agonist. If present in meaningful quantities (above 0.1%), the product will produce a positive result on standard drug tests. Full-spectrum hemp products contain trace Delta-8 naturally; products with elevated Delta-8 are intentionally formulated.
THCa
The acidic precursor form. Present in raw hemp and in THCa-specific products. THCa in a COA does not indicate a product is psychoactive on its own, but products marketed as THCa vapes or flower are intended for heat application. Products containing THCa will produce a positive result on standard drug tests.
CBD
The primary non-psychoactive cannabinoid in hemp products. Verify the mg amount matches what’s claimed on the label. CBD is not detected by standard drug tests, but full-spectrum CBD products contain trace Delta-9 THC that can accumulate with high-dose daily use.
CBG / CBN / CBC
Minor cannabinoids that contribute to the entourage effect. Presence confirms a full-spectrum or broad-spectrum formulation. CBG presence indicates the product uses early-harvest hemp or intentional CBG addition. CBN is associated with sleep support in some research.
Reading the Terpene Panel
Not all COAs include terpene data, but for vapes, flower, and live resin products, the terpene panel is the most useful section for predicting the actual experience. Terpenes are aromatic compounds that interact with serotonin, dopamine, GABA, and CB2 receptors directly. They’re not passive flavor compounds. The terpene profile explains why two products with identical THC percentages can produce completely different effects.
Terpenes are reported as a percentage of total product weight. A terpene showing 0.5% or above is present at a meaningful pharmacological level. Below 0.1%, the contribution to effect is minimal.
Myrcene
Earthy, mango, musky
Sedating CNS depressant. Potentiates cannabinoid absorption. High myrcene = indica-leaning, body-heavy effect. Above 0.5% is meaningful. Above 1.0% is pronounced sedation.
Limonene
Citrus, lemon, orange
Activates D2 dopamine and 5-HT1A serotonin. Uplifting, mood-brightening. Sativa-forward profiles. Above 0.5% = meaningful uplift. The primary sativa terpene.
Beta-caryophyllene
Spicy, peppery, clove
Binds CB2 receptors directly. Anti-inflammatory and mildly anxiolytic. Present in most strains; higher concentrations add physical comfort and reduce edge from other terpenes.
Linalool
Floral, lavender
Activates 5-HT1A and modulates GABA-A. Anxiolytic. Common in indica and indica-hybrid profiles. Addresses the mental component of sleep difficulty alongside myrcene’s physical sedation.
Alpha-pinene
Pine, fresh, woody
Inhibits acetylcholinesterase, which supports the cholinergic system involved in alert attention. May partially counteract short-term memory effects from THC. Present in sativa-forward profiles.
Terpinolene
Floral, piney, herbal
Alerting at typical concentrations. Adds the “heady” cerebral quality in sativa strains (Maui Wowie, Jack Herer). High concentrations can feel activating; high terpinolene means sativa-leaning regardless of the indica/hybrid label.
Practical tip: To choose between two products with the same cannabinoid profile, compare the dominant terpene. If myrcene is the highest terpene, expect body relaxation. If limonene is highest, expect mood uplift. If terpinolene is highest, expect cerebral engagement. The dominant terpene is the most predictive single data point on a COA for effect.
Reading the Contaminant Panel
The contaminant panel is the safety section of a COA. Most consumer attention goes to potency; most risk sits here. Contaminant testing covers five categories: pesticides, heavy metals, microbials (bacteria and mold), residual solvents (from extraction processes), and mycotoxins.
Results appear as either a quantified number (the detected amount) alongside the action limit for that contaminant, or as “ND” (non-detected), or as a simple PASS/FAIL designation. A PASS means the detected level is below the regulatory action limit for that contaminant. FAIL means the batch exceeded the limit and should not be sold.
| Category | What’s Being Tested | What to Look For | Red Flag |
| Pesticides | Residues from agricultural pesticide use during cultivation | PASS or ND across all compounds listed | Any individual compound listed as FAIL or a result at or near the action limit |
| Heavy Metals | Lead, arsenic, cadmium, mercury (hemp bioaccumulates from soil) | PASS or ND for all four metals | Any detected above action limits; lead and arsenic are the most common in hemp products |
| Microbials | E. coli, Salmonella, total yeast and mold, total aerobic count | PASS for each pathogen tested | Any pathogenic bacteria detected; high total yeast/mold counts suggest poor storage or processing |
| Residual Solvents | Solvents from extraction (butane, propane, ethanol, CO2, etc.) | PASS or ND; very low ethanol is acceptable | Butane, propane, or other hydrocarbons above action limits in an inhaled product |
| Mycotoxins | Mold metabolites (aflatoxins, ochratoxin A) | ND or below action limit | Any detected aflatoxin in an inhaled product; limits are very strict for inhalation |
Not every COA includes all five categories. A bare-minimum COA shows cannabinoid potency only. A thorough COA includes potency, terpenes, pesticides, heavy metals, microbials, and residual solvents. For any product you inhale, a COA that doesn’t include at minimum pesticide and residual solvent testing is insufficient.
How to Verify a COA Is Legitimate
The hemp industry has a recycled-COA problem. A brand takes a COA from a legitimate batch, then applies it to later batches of the same product without retesting. From the consumer’s perspective, the COA looks valid. From a safety perspective, the later batches are unverified.
- Match the batch number. The COA lists a batch or lot number. The product packaging should list the same number. If the batch numbers don’t match, the COA does not apply to the product in your hand (regardless of whether the COA itself is legitimate).
- Check the test date. A COA for a product currently on sale should have been issued within the past 12 months, ideally within the past 6. A 2022 COA on a product being sold in 2026 is a recycled COA. Different batch, same document.
- Verify the lab is accredited. The issuing lab should appear on the COA with a name, address, and ideally an accreditation number. Search the lab name and confirm they hold current ISO/IEC 17025 accreditation from an accrediting body such as A2LA, PJLA, or a state-recognized equivalent.
- Confirm the product matches what’s listed. The COA should list the product name, the cannabinoid formulation, and the format. A COA for “CBD Tincture 1,800mg” does not apply to “CBD Tincture 900mg” even if both are made by the same brand from the same base.
- Look for a QR code or verification link. Most reputable labs provide a digital verification system. Scanning the QR code or entering the COA ID on the lab’s website should pull up the original document from the lab’s server directly, confirming it hasn’t been altered after issuance.
Red Flags on a COA
- Missing contaminant testing. A COA that only shows cannabinoid potency without pesticide, heavy metal, or solvent data is incomplete. For inhaled products, this is disqualifying.
- The lab name is the brand name. An in-house “lab” is not a third-party lab. Third-party means the lab and the brand have no financial relationship. If the COA is issued by an entity with the same name or parent company as the brand, it is not independent.
- Suspiciously round numbers. Results like exactly 25.00mg or exactly 0.300% Delta-9 are unlikely from real analytical chemistry, where results vary at the decimal level. Round numbers may indicate fabricated data.
- No batch number on the COA. Without a batch number, there is no way to match the COA to a specific production run. The document is untraceable and effectively unverifiable.
- No accreditation information for the lab. A legitimate third-party lab will be accredited by a recognized body and will list that accreditation on its documents or website.
- Test date predates the brand’s product launch. A COA dated before the product was available for sale is either for a different product or from a different testing period entirely.
- Potency significantly above label claim. Products testing substantially higher than claimed are less common but represent a different compliance risk. A product claiming 25mg Delta-8 that tests at 60mg has both a labeling problem and a consumer safety issue for dose-sensitive users.
TribeTokes COAs
TribeTokes posts COAs for all products at tribetokes.com/certificates-of-analysis. Each COA is issued by an ISO/IEC 17025-accredited third-party laboratory and includes cannabinoid potency, terpene profile, and contaminant testing. The batch number on each COA corresponds to the lot number on the product label and packaging.
If you are looking at a TribeTokes product and the batch number on the packaging doesn’t appear to match any COA on the page, contact the team at team@tribetokes.com. Batch numbers rotate with each production run, and new COAs are posted within the same week the corresponding batch ships.
What to look for specifically in TribeTokes COAs: In the cannabinoid panel, confirm the Delta-8 or THCa content matches the product’s label claim. In the terpene panel, the dominant terpene determines the strain’s effect character. Myrcene-leading products are indica-leaning; limonene-leading products are sativa-leaning. In the contaminant panel, all categories should show PASS. If any row reads FAIL, do not use the product and contact the team.
Frequently Asked Questions
COA stands for Certificate of Analysis. It’s a document issued by a third-party laboratory that has tested a specific batch of a cannabis or hemp product for cannabinoid potency, terpene content, and the presence of contaminants such as pesticides, heavy metals, microbials, and residual solvents. The COA is the primary quality and safety verification document available to consumers in the unregulated hemp market.
Start with the batch number and confirm it matches your product packaging. Check the test date (should be within the past 12 months). Review the cannabinoid panel to confirm the label claim is supported and that Delta-9 THC is below 0.3% for hemp products. Review the terpene panel to understand the effect profile. Review the contaminant panel and confirm all categories show PASS or ND. If any category is missing or shows FAIL, treat the COA as incomplete or the product as problematic.
A complete COA includes: the issuing lab’s name, address, and accreditation status; the product name, batch number, and test date; a cannabinoid potency panel; a terpene panel (for flower and vape products); and contaminant testing covering pesticides, heavy metals, microbials, and residual solvents. A COA that includes only cannabinoid potency without contaminant testing is incomplete, particularly for any product that is inhaled.
Match the batch number on the COA to the batch number on the product packaging. Verify the test date is recent (within 12 months). Confirm the issuing lab is ISO/IEC 17025 accredited by searching their name independently. Use the QR code or verification link on the COA to pull the document directly from the lab’s server. If any of these checks fail, the COA is not verifiable for that specific product.
Yes. Certificate of Analysis and lab report refer to the same document in the cannabis industry. Some labs use the term “analytical report” or “test report.” All refer to the same type of document: a formal record from a testing laboratory specifying the results for a particular batch of product.
ND stands for non-detected. It means the analytical method used by the lab did not detect the compound at or above the method’s limit of detection (LOD). ND is not the same as zero. It means the compound is either absent or below the threshold the method can measure. For contaminants, ND is the best possible result. For cannabinoids, ND on Delta-9 THC in a CBD product means the Delta-9 content is below the detection limit, which is the lowest drug test risk position.
Terpenes are the compounds that actually differentiate one strain’s experience from another. Two products with identical THC percentages can produce completely different effects if their terpene profiles differ. High myrcene produces a body-heavy, sedating effect regardless of whether the strain is labeled indica or hybrid. High limonene produces an uplifting, mood-brightening effect. Reading the dominant terpene on a COA is the most reliable way to predict how a product will feel before you use it.
Any product containing detectable Delta-9 THC carries real drug test risk with consistent daily use, even if the concentration is below the 0.3% hemp threshold. Standard urine drug tests detect THC metabolites that accumulate over time regardless of source. Full-spectrum CBD products with trace Delta-9 THC can produce a positive result after weeks of high-dose daily use. Any product containing Delta-8 THC, THCa, or HHC in significant quantities will produce a positive result on standard drug tests. Review the specific Delta-9 level on the COA if drug testing is a concern.
Every TribeTokes Product Has a COA. Here’s Where to Find Them.
Third-party tested. ISO-accredited lab. Batch number on every product.