Quality, analysis and traceability of CBD products: how to recognize a reliable product?

What constitutes a quality CBD product?

A quality CBD product is one whose composition is clear, verifiable, and compliant. Simply containing cannabidiol is not enough to be considered reliable. It must also meet criteria for safety, transparency, and consistency between what is advertised and what is actually measured.

Quality rests on several pillars:

• a clearly identified origin of hemp;
• a CBD level consistent with the label;
• a delta-9-THC level that complies with the regulatory framework;
• laboratory analyses available;
• a batch number enabling traceability;
• an absence of concerning contaminants;
• understandable labeling;
• communication without unfair medical promises;
• a clearly defined product category;
• appropriate storage.

A reliable product must allow the consumer to know what they are buying. CBD is an active ingredient derived from a plant whose composition can vary depending on the variety, cultivation, harvesting, drying, extraction, and storage. Transparency is therefore not a bonus: it is a prerequisite for trust.

To understand the basics of cannabidiol, see also:
CBD: scientific definition of cannabidiol.

Why laboratory tests are essential

Laboratory analysis is the only reliable way to verify the composition of a CBD product. Appearance, smell, texture, color, or taste cannot accurately determine the CBD or THC content. Even an experienced seller cannot guarantee the exact composition of a product without analysis.

The analyses allow us to verify, in particular:

• the actual CBD level;
• the actual rate of delta-9-THC;
• the presence of other cannabinoids;
• consistency with the label;
• the possible presence of contaminants;
• the conformity of a given batch;
• the stability of a product over time.

This verification is all the more important given that discrepancies between advertised and measured levels have already been observed on the French market. In the study reported by MILDECA, 81% of the labeled products analyzed had CBD levels different from those indicated on the label.
Read the study summary on Drogues.gouv.fr.

These discrepancies are not insignificant. They can alter the consumer experience, raise compliance issues, or create a false impression of quality. A product advertised as containing a certain percentage of CBD must be able to substantiate that percentage through reliable analysis.

CBD certificate of analysis: what should it contain?

The certificate of analysis, often called a COA for “Certificate of Analysis,” is an essential document. It must allow verification of the product's composition and link the analysis to a specific batch. A simple table without an identified laboratory or batch number does not offer the same level of reliability.

Essential information

A reputable certificate of analysis should ideally contain:

• the name of the laboratory;
• the contact details or identification of the laboratory;
• the date of the analysis;
• the name or reference of the product;
• the batch number;
• the analysis method used;
• the CBD level;
• the delta-9-THC level;
• the profile of other cannabinoids;
• units of measurement;
• the results concerning contaminants, if tested;
• an official signature, validation or identification of the report.

Cannabinoid analysis and contaminant analysis: two different levels

It's important to distinguish between cannabinoid analysis and contaminant analysis. Cannabinoid analysis measures the levels of CBD, THC, CBG, CBN, or other molecules. It allows for verification of the product's profile. Contaminant analysis looks for undesirable substances such as pesticides, heavy metals, residual solvents, or microbiological contaminants.

A product may have a good cannabinoid profile but lack contaminant testing. Conversely, a product may be contaminant-free but have an inconsistent CBD level. Therefore, a comprehensive analysis is preferable, especially for concentrated products or those intended for regular use.

THC and compliance: the regulatory threshold to check

The THC level is one of the most sensitive issues. In France, the decree of December 30, 2021, stipulates that the delta-9-THC content of hemp extracts and products containing them must not exceed 0.30%. Official source:
Decree of December 30, 2021, on Légifrance.

This threshold must be verified by analysis. It is not sufficient for a product to display “THC < 0.3%” on its packaging. The consumer must be able to consult a certificate of analysis corresponding to the batch in question. Without proof, the claim remains a declarative statement.

The 0.30% threshold is not a safety threshold

The Council of State reiterated that the 0.30% delta-9-THC level is not a safety threshold, even though it deemed the general and absolute ban on low-THC flowers and leaves disproportionate. This distinction is important: the threshold allows for an assessment of regulatory compliance, but it does not guarantee the absence of all risk in every context.
See the Council of State's decision of December 29, 2022.

This distinction is particularly important for driving and testing. A compliant product may contain traces of THC, and these traces can cause problems depending on the conditions of use, frequency, metabolism, and tests performed.

Read:
CBD, driving and THC testing: what you need to know.

CBD labeling: common discrepancies observed

Labeling is essential for the quality of a CBD product. It must allow consumers to understand the composition, concentration, precautions, and product category. However, discrepancies between labeling and actual composition have been documented.

According to the study reported by MILDECA, only one in two samples had a composition label. Among the labeled products, 81% had CBD levels different from those indicated. The summary report also notes a proportion of samples exceeding the 0.3% delta-9-THC threshold, with an increase observed between 2022 and 2023.
Read the MILDECA summary note on non-pharmaceutical CBD products.

Why these discrepancies pose a problem

These discrepancies are problematic for several reasons. First, they prevent consumers from knowing precisely what they are using. Second, they can create a regulatory risk if the THC level exceeds the applicable threshold. Finally, they undermine trust in the CBD market, as transparency is one of the cornerstones of a reputable industry.

What good labeling should indicate

• the clear name of the product;
• the net quantity;
• the composition;
• the CBD level or the amount of CBD;
• the mention of the THC level when relevant;
• the batch number;
• precautions for use;
• storage conditions;
• the identity of the person responsible for placing the product on the market;
• the product category: cosmetic, flower, resin, oil, etc.

Contaminants: pesticides, heavy metals, solvents, and molds

The quality of a CBD product doesn't depend solely on its cannabidiol content. Like any plant-based product, hemp can be exposed to contaminants. The risk varies depending on growing conditions, soil, agricultural treatments, storage, extraction, and processing.

Pesticides

Pesticides can be used in agriculture to protect crops. In a quality-controlled supply chain, their presence must be monitored, limited, or eliminated according to applicable requirements. Products from organic or sustainable farming practices can offer an additional level of confidence, but they too must be verified.

Heavy metals

Hemp is a plant capable of absorbing certain elements present in the soil. This is an interesting quality for some environmental uses, but it requires vigilance for products intended for consumers. Analyses may look for heavy metals such as lead, cadmium, arsenic, or mercury.

Residual solvents

Some extraction processes use solvents. If the extraction is poorly controlled or inadequately purified, residues may remain in the final product. Therefore, residual solvent analysis is particularly important for extracts, resins, concentrated oils, or processed products.

Molds and microbiological contaminants

Flowers and plant materials that are improperly dried or stored can develop mold. Microbiological analyses can help control certain risks related to storage, humidity, or processing conditions. Visual appearance alone is not always sufficient to detect a problem.

French authorities remind consumers that the THC, CBD, and other molecule content of hemp flowers depends on several factors, including the variety and growing conditions.
Consult the official Drogues.gouv.fr page on CBD.

Batch traceability: why it's essential

Traceability allows a product to be tracked from raw material to end consumer. In the CBD sector, it is essential for verifying the origin of the hemp, linking an analysis to a batch, identifying any potential problems, and proving compliance in the event of an inspection.

A product without a batch number is much more difficult to verify. If an analysis exists but is not linked to a specific batch, it loses much of its value. The consumer must be able to understand whether the certificate presented actually corresponds to the product they are buying.

Useful traceability elements

• lot number;
• harvest or manufacturing date;
• origin of hemp;
• variety or genetics, if available;
• cultivation method;
• extraction method, if applicable;
• date of analysis;
• certificate corresponding to the batch;
• identified supplier or producer;
• responsible for placing on the market.

Product traceability and recall

In the event of non-compliance, traceability allows for the rapid identification of the affected batches. Without traceability, it becomes difficult to precisely recall problematic products, inform affected customers, or provide the documents requested by the authorities.

Origin of hemp and cultivation methods

The origin of hemp strongly influences its final quality. Soil, climate, variety, cultivation method, harvesting, drying, and storage all play a role in the product's composition. A reputable supply chain must be able to explain where the hemp comes from and how it was produced.

Indoor, greenhouse and outdoor cultivation

Hemp flowers can be grown indoors, in a greenhouse, or outdoors. Each method has its advantages and limitations. Indoor cultivation allows for more precise environmental control but requires more energy. Greenhouse cultivation combines natural light with partial control of growing conditions. Outdoor cultivation is more dependent on climate and soil.

These methods influence appearance, aroma, density, terpene profile, and sometimes batch consistency. However, no single method guarantees quality. A well-grown and properly dried outdoor flower can be more reliable than a poorly stored indoor flower. Therefore, analysis remains essential.

Organic hemp and pesticide-free

Organic farming can be a positive sign, but it doesn't replace controls. An organic product should ideally be accompanied by verifiable documentation. Consumers should be wary of vague terms like "natural," "premium," or "pure" when they are not supported by evidence.

Extraction methods and final quality

For oils, concentrates, resins, or extracts, the extraction method plays an important role. It influences purity, stability, cannabinoid profile, the possible presence of residual solvents, and the final cost of the product.

Supercritical CO2 extraction

Supercritical CO2 extraction is often presented as a high-end method. It allows for the extraction of compounds from hemp without leaving behind conventional organic solvents. However, it requires specialized equipment and technical expertise. As with other methods, quality depends on mastering the process.

Ethanol extraction

Ethanol extraction can be effective, but it must be followed by rigorous controls to ensure the absence of problematic residues. It can extract a wide range of compounds, including some undesirable elements if the process is not properly controlled.

Extraction using hydrocarbons or solvents

Some methods use more sensitive solvents. In this case, residual solvent analysis is particularly important. A concentrated extract should always be thoroughly checked.

Pressing, sieving and resins

CBD resins or hash can be obtained through mechanical methods, such as sieving or pressing. Even when the process seems simpler, it is essential to control the raw material, the THC level, contaminants, and batch consistency.

Full spectrum, broad spectrum, isolate: impact on quality

The spectrum type influences the composition of a CBD product. These terms should not be confused with absolute quality levels. A full spectrum product can be excellent or mediocre depending on its traceability. An isolate can be very pure or poorly documented. The spectrum describes the composition, not necessarily the quality.

CBD full spectrum

A full-spectrum product contains several compounds derived from hemp: CBD, other cannabinoids, terpenes, and sometimes traces of THC within the legal limit. This type of product requires particular attention to the delta-9-THC level.

CBD broad spectrum

A broad-spectrum product contains several compounds from hemp, but it is formulated to contain no detectable THC according to testing. It remains important to check the certificate, as the "THC-free" claim must be supported by test results.

CBD Isolate

Isolate is a purified form of cannabidiol. It can achieve very high purity, but this does not eliminate the need to verify analyses, the production method, and the possible presence of residues.

Related article:
CBD full spectrum, broad spectrum and isolate: understanding the differences.

Warning signs: how to spot a dubious CBD product

Certain signs should prompt caution. A dubious CBD product is not always easy to identify, but several elements can alert the consumer.

Lack of analysis

If no certificate of analysis is available, the actual composition of the product cannot be verified. This is one of the first signs of a lack of transparency.

Analysis not related to the batch

A generic, old, or batch-numbered analysis does not necessarily prove the conformity of the product sold. The certificate must correspond to the batch in question.

Medical promises

A product that promises to cure, treat, or replace medical treatment should raise suspicion. CBD products sold outside of a pharmaceutical framework should not be presented as medicines.

Abnormally low price

A very low price can sometimes be explained by a promotional offer, but it can also indicate poor quality, a lack of quality control, or an uncertain origin. Price should never be the sole criterion, but it can be a warning sign.

Incomplete labeling

A product without a clear composition, batch number, precautions, or identified responsible party should be avoided. The label is a tool for transparency.

Deliberate confusion between CBD and the effects of THC

Discourses that deliberately conflate legal CBD with the psychotropic effects of THC should be treated with caution. CBD and THC are two different molecules with different properties.

To learn more:
CBD vs THC: differences, effects, legal status and points to be aware of.

Seller's responsibility: transparency, documents and information

A reputable seller must be able to clearly inform the consumer. They must avoid excessive promises, provide verifiable information, and ensure that the products offered comply with applicable regulations. Responsibility doesn't end with the purchase from a supplier; it also extends to product presentation, labeling, product sheets, and available documentation.

Useful documents may include:

• certificates of analysis;
• supplier invoices;
• technical specifications;
• batch numbers;
• traceability documents;
• proof of origin;
• compliant labels;
• security information;
• precautions for use;
• documents related to the regulatory category of the product.

This demand for transparency is also a strong element of trust. In CBD, credibility is not built on words alone. It is built on evidence.

FAQ: CBD quality, analysis and traceability

How can you tell if a CBD product is of good quality?

A quality CBD product must be traceable, analyzed, properly labeled, and comply with the applicable THC level. It must provide clear information about its composition, origin, batch, and precautions for use.

Does a high CBD content necessarily mean better quality?

No. A high CBD content alone is not enough to guarantee quality. It is also necessary to check the THC level, contaminants, traceability, type of extract, manufacturing method, and analyses.

Why request a certificate of analysis?

The certificate of analysis verifies the actual composition of the product. It confirms, in particular, the CBD and THC levels, and may also indicate the presence or absence of contaminants, depending on the tests performed.

What does THC less than 0.30% mean?

This means that the product complies with the regulatory threshold applicable to hemp extracts and products containing them, provided that the analysis is reliable and corresponds to the batch. This threshold does not guarantee the complete absence of risk in the event of testing.

Is an old analysis sufficient?

An old analysis or one not linked to the sold batch is less reliable. Ideally, you should have a recent analysis that corresponds precisely to the product batch.

Do CBD flowers need to be analyzed?

Yes. CBD flowers should be tested to verify their CBD content, THC content, and ideally, the absence of contaminants. Their appearance alone cannot guarantee their composition.

Which contaminants should be monitored?

Contaminants to monitor include pesticides, heavy metals, residual solvents, molds, and microbiological contaminants. The necessary tests depend on the type of product.

Is organic CBD always better?

Organic certification can be a positive sign, but it doesn't replace testing. An organic product must also be traceable, compliant, properly labeled, and accompanied by supporting documentation.

Why is labeling so important?

Labeling allows consumers to understand the composition, concentration, precautions, and origin of the product. Incomplete labeling limits transparency.