An e-liquid label contains safety information, not just a name and volume. Pictograms, warnings, precautions, supplier or batch identification all serve different purposes. Understanding them makes it easier to identify the instructions that apply to the bottle you have.
Guide verified on October 30, 2026. Requirements depend on the composition, the mixture's classification and, for some provisions, the presence of nicotine. This guide is neither a product compliance certification nor a purchase recommendation.
The first distinction: identify, warn, and explain
You can read a label in three steps. First, identify the product and its supplier precisely. Next, find the information that indicates a hazard. Finally, read the advice on how to prevent exposure or respond if it occurs.
These three levels are not interchangeable. A batch number does not explain a hazard; a pictogram does not replace written precautions; a nicotine statement does not summarize all the risks of the mixture. You should therefore read the entire packaging and, when provided, the leaflet.
Pictograms: regulatory symbols, not ratings
The European CLP Regulation governs the classification and labeling of chemicals. LINRS explains that pictograms associated with a hazard category should be read alongside the other elements on the label. They are not used to rank products commercially from “best” to “worst.”
For some e-liquids, an exclamation mark or a skull and crossbones may indicate a hazard if swallowed. You should not infer the exact classification from the product name alone or by comparing bottles. Read the hazard statement accompanying the symbol.
Classification depends on the substances and the final mixture. Not all e-liquids therefore necessarily have the same pictograms. Lack of a particular symbol does not guarantee safety. The INRS's general explanations of CLP labeling help put these elements into context.
“Warning” and “Danger”: why the words differ
These terms may be regulated signal words. They indicate the relative severity of the hazard associated with the classification. They are not a slogan or wording freely chosen to attract attention.
To read the message correctly, match the word to the type of hazard indicated right beside it. A warning about ingestion should be understood as such: on its own, it does not allow you to conclude that there is no risk in all other situations.
Hazard statements and precautionary statements: two distinct roles
A hazard statement describes what the product may cause under the specified conditions. A precautionary statement indicates a measure for prevention, storage, or responding to exposure. Codes beginning with H and P, when present, are part of this regulatory system.
The most useful way to read the information is to turn an instruction into a concrete action. An instruction to keep the product out of children's reach means checking where it is stored. An instruction to keep the label available in case of medical advice means not throwing away or covering up this information.
Do not randomly apply the information on another bottle. A photo found online may show a different formulation or concentration. For the product you have at home, the practical reference is its own packaging, supplemented by information from the supplier or a qualified professional.
Nicotine concentration and volume: don't confuse the units
The volume indicates the amount of liquid in the container. A concentration expressed in mg/ml indicates the mass of nicotine per milliliter. These are two different pieces of information: the number of milliliters in a bottle is not a nicotine strength.
When stated, the PG/VG ratio describes yet another property. It should not be interpreted as a nicotine concentration or a safety scale. This guide does not help you choose a strength; for questions about health or quitting smoking, consult a healthcare professional.
The DGCCRF points out that specific statements apply to products containing nicotine. These are in addition to the requirements that apply to the mixture. It is therefore best not to generalize the label of a nicotine-containing product to all other products.
Lhe nicotine health warning
For the products concerned, a warning reminds users that nicotine is highly addictive and advises non-smokers not to use the products. It should not be confused with statements describing toxicity in case of ingestion: the two pieces of information serve different purposes.
A product's presentation or flavor must never lead you to ignore this warning. Vaping is not risk-free. Lhe article does not present any product as a medicine and does not replace a discussion with a healthcare professional.
The batch number: finding the exact reference
A batch number identifies a production run. It is useful for communicating precisely with a supplier or checking whether information concerns the bottle in your possession. It is not the brand name, and it is not the UFI.
When a recall notice concerns a batch, a mere resemblance between a photo and a bottle is not enough: the references listed in the official notice must be checked. Conversely, information concerning a specific product should not be extended without justification to all of a company's products.
The UFI code: an aid for poison centers
Lhe UFI is a formulation identifier made up of sixteen characters. It links a mixture to information submitted as part of the European poison response system. Lhe ECHA explains that it can help the poison center identify the composition of the product involved more quickly.
It is neither a quality label, nor a marketing authorization, nor a batch number. Its presence does not mean the product is safe. Whether it is required depends on the scope of the rules applicable to the mixtures concerned; the absence of a code on any given product should not automatically be taken to mean there has been a violation.
In case of exposure, keep the container close to the phone and provide the requested information. Lhe call must not be delayed because a code is difficult to read. See the ECHA explanation.
Child-resistant closure, tactile warning, and leaflet
Depending on the product and its classification, the packaging may include a child-resistant closure and a tactile warning. The leaflet may provide additional instructions. These elements do not remove the need to keep products out of children's reach and follow the precautions.
Avoid covering useful information with a new decorative label. When there are several sides or a leaflet, check them before assuming that information is missing. If a statement remains illegible, ask for clarification rather than guessing what it says.
A one-minute reading guide
- Identify: product name, supplier, and contact details.
- Read the quantities: volume and, where present, nicotine concentration, without confusing the two.
- Identify the warnings: symbols and phrases describing the hazards.
- Follow the precautions: storage, handling, and the stated instructions.
- Keep the references: batch number, UFI if available, leaflet, and packaging.
This list is a proposed aide-memoire to help organize your reading. It is not a substitute for a full regulatory audit, which requires knowledge of the formulation, technical documentation, and all applicable rules.
FAQ
Does a bottle without nicotine have no warnings?
Not necessarily. The classification of a mixture is not based solely on nicotine. Read the information specific to the product.
Does the UFI code replace the batch number?
No. L'UFI identifies a formulation in the poison response system; the batch number identifies a production run.
Does a pictogram prove that a product is illegal?
No. It may be precisely the hazard information required by regulations. Compliance cannot be assessed based on the presence of a single symbol.
What should you do in case of accidental ingestion?
Quickly seek advice from a poison control center; do not wait for symptoms. Do not induce vomiting. In a serious emergency, call 15 or 112. Keep the bottle so the product can be identified.
Share:
E-liquids and children: storage, precautions, and accident prevention at home
E-liquids and children: storage, precautions, and accident prevention at home