CLP Labeling Guide for Candles & Wax Melts

1. What Is the CLP Regulation?

The CLP Regulation — formally Regulation (EC) No 1272/2008 on the Classification, Labelling and Packaging of substances and mixtures — is the EU's implementation of the United Nations Globally Harmonized System of Classification and Labelling of Chemicals (GHS). It entered into force on January 20, 2009, and has been the sole chemical classification system in the EU since June 1, 2015.

CLP applies to all chemical substances and mixtures placed on the EU market. This includes products that consumers may not think of as "chemicals" — scented candles, wax melts, reed diffusers, and room sprays all fall under CLP because they contain fragrance ingredients that carry hazard classifications. The regulation imposes three core obligations on suppliers:

• Classification: Determine the hazard profile of your mixture based on the classified ingredients it contains, using the calculation methods in CLP Annex I.
• Labelling: Apply a standardized label with GHS pictograms, signal words, hazard statements, and precautionary statements so that end users are informed of the risks.
• Packaging: Ensure packaging meets safety standards — child-resistant fastenings and tactile warnings where required (generally not applicable to candles).

2. Does My Candle Need a CLP Label?

If your candle or wax melt contains fragrance ingredients classified as hazardous under CLP — which virtually all commercial fragrance oils do — then yes, you need a CLP label. The question is not whether the candle "feels" like a chemical product; it is whether the mixture meets CLP classification thresholds based on the concentration and hazard classification of its ingredients.

The classification of your candle is determined by the overall hazard profile of the mixture, calculated from the concentration and classification of each ingredient. Your fragrance supplier's Safety Data Sheet (SDS) is the critical document here — it lists every classified substance in the fragrance, its concentration range, and its hazard classification.

• Scented candles with fragrance oils: Almost always require CLP labeling. Fragrance oils typically contain skin sensitizers, eye irritants, and aquatic-toxic substances that trigger classification even at typical 6–10% fragrance loads.
• Scented candles with essential oils: Also almost always require CLP labeling. Essential oils like lavender (linalool, linalyl acetate), citrus oils (limonene), and tea tree (terpinen-4-ol) contain classified substances.
• Unscented candles: Pure paraffin, soy, beeswax, or coconut wax candles with no fragrance or dye may be exempt from CLP labeling if no ingredient triggers classification. However, if any additive (UV stabilizer, dye, opacifier) is classified, CLP may still apply.

3. How to Classify Your Candle Mixture

Classification under CLP is a self-classification process. There is no approval body that certifies your label — you (or the entity placing the product on the EU market) are responsible for classifying the mixture correctly and applying the appropriate label elements. Here is the process:

The classification process

• Step 1: Obtain the SDS from your fragrance supplier. The SDS (compliant with REACH Annex II) will list all classified substances in the fragrance, their concentration ranges, and their individual hazard classifications.
• Step 2: Identify classified substances and their concentrations in your finished product. If you use a fragrance oil at 8% in soy wax, and the fragrance contains linalool at 15%, then your finished candle contains linalool at approximately 1.2% (0.08 x 0.15). Repeat for every classified ingredient.
• Step 3: Apply CLP Annex I calculation methods. For health hazards, use the summation method: add the concentrations of all ingredients with the same classification and compare against the Generic Concentration Limits (GCLs) or Specific Concentration Limits (SCLs). Key thresholds: Skin Sensitizer Cat 1B GCL = 1.0%; Cat 1A GCL = 0.1%. For environmental hazards (aquatic toxicity), use the additive method in CLP Annex I, Part 4.
• Step 4: Determine the mixture's overall classification. Once you have applied the calculation methods, you will have a list of hazard categories that apply to the finished mixture. These drive the label elements.

Common hazard classifications for candle fragrances

4. CLP Label Elements — What Goes on the Label

Once your candle mixture is classified, you must design a label that includes all required elements per CLP Articles 17–31. Every element is mandatory — omitting any one of them renders the label non-compliant.

Product identifier

The label must show the trade name of the product (e.g., "Lavender Dreams Soy Candle") and the chemical identity of the hazardous components that contribute to the classification. For a candle classified as a skin sensitizer due to linalool and limonene, you must name those substances on the label. CLP Article 18 specifies that up to four substance names are required, prioritized by those contributing most to the health hazard classifications.

GHS hazard pictograms

Pictograms are red-bordered diamond shapes with black symbols on a white background. Each pictogram must be printed at a minimum size of 1 cm x 1 cm for packages of 125 mL or less, scaling up proportionally for larger packages. The pictogram must cover at least 1/15th of the label area, with a minimum of 1 cm².

Signal word

CLP uses two signal words: "Danger" for more severe hazard categories and "Warning" for less severe ones. Most scented candles carry the signal word "Warning" because skin sensitization (Category 1/1B) and aquatic chronic toxicity (Categories 2–3) are lower-severity categories. Only one signal word appears on the label — the more severe one takes precedence.

Hazard statements (H-codes)

Hazard statements are standardized phrases assigned to each hazard class and category. You must include every H-statement that corresponds to the classification of your mixture. The most common for scented candles:

• H317 — May cause an allergic skin reaction
• H319 — Causes serious eye irritation
• H412 — Harmful to aquatic life with long lasting effects
• H226 — Flammable liquid and vapour (only if flash point ≤ 60°C)

H-statements must be written out in full — using only the code number without the accompanying text is not compliant.

Precautionary statements (P-codes)

Precautionary statements advise on safe handling, storage, and disposal. Unlike H-statements, you have some discretion in selecting P-statements. For candles, the most commonly applicable:

• P261 — Avoid breathing dust/fume/gas/mist/vapours/spray
• P264 — Wash hands thoroughly after handling
• P272 — Contaminated work clothing should not be allowed out of the workplace
• P273 — Avoid release to the environment
• P280 — Wear protective gloves
• P302+P352 — IF ON SKIN: Wash with plenty of water
• P333+P313 — If skin irritation or rash occurs: Get medical advice/attention
• P363 — Wash contaminated clothing before reuse
• P501 — Dispose of contents/container in accordance with local regulations

CLP Article 28 allows you to omit P-statements that are clearly unnecessary or redundant for the product type. You may include a maximum of six P-statements unless more are needed to cover all hazard classes.

Supplier information

The label must display the name, address, and telephone number of the supplier responsible for placing the mixture on the EU market. A US address does not satisfy this requirement. The supplier must be an entity established within the EU CLP Art. 17(1)(a).

Nominal quantity

The net content of the product (weight or volume) must appear on the label. For candles, this is typically expressed as net weight in grams (e.g., "220 g"). This must be the quantity of the mixture itself, not the total weight including the container.

UFI code

The Unique Formula Identifier must appear on the label in the format UFI: XXXX-XXXX-XXXX-XXXX. This is a separate requirement covered in detail in the UFI codes section below.

5. GHS Pictograms for Candles — Visual Guide

Each GHS pictogram is a red-bordered diamond containing a black symbol. CLP Annex V defines the exact pictograms. Here are the ones relevant to candles and wax melts:

Pictogram sizing requirements

Pictogram dimensions are specified in CLP Annex I, Section 1.2.1.3:

• Each pictogram must have a minimum size of 1 cm x 1 cm.
• On packages of 125 mL or less, each pictogram may be no smaller than 1 cm x 1 cm.
• On packages of 3 litres or less, each pictogram must be at least 1.6 cm x 1.6 cm.
• On packages between 3 and 50 litres, each pictogram must be at least 2.3 cm x 2.3 cm.
• On packages exceeding 50 litres, each pictogram must be at least 3.2 cm x 3.2 cm.
• In all cases, the pictogram must cover at least 1/15th of the surface area devoted to the label information, with a minimum area of 1 cm².

For a typical candle jar (200–300 mL), you should size your pictograms at 1.6 cm x 1.6 cm or larger. Under-sized pictograms are one of the most common enforcement issues.

6. Language Requirements

CLP Article 17(2) is unambiguous: the label must be in the official language(s) of the member state(s) where the product is placed on the market. There is no English-only exemption, no exemption for small businesses, and no exemption for products sold online.

• Germany: Label in German.
• France: Label in French.
• Spain: Label in Spanish (Castilian). Regional languages are not legally required under CLP.
• Belgium: Label in Dutch, French, and German (Belgium has three official languages).
• Ireland: English is required; Irish may also be required depending on market surveillance practice.
• Multi-market EU-wide sales: You need every language for every market you sell into.

Practical approaches to multilingual labeling

• Multilingual fold-out labels: A peel-back or fold-out label that contains the CLP information in multiple languages. The most common approach for candle brands selling across the EU.
• Country-specific label runs: Print separate labels for each market. More expensive but produces the cleanest-looking label.
• Peel-back or booklet labels: A small booklet attached to the candle base or side, similar to pharmaceutical products.
• Separate tag or leaflet: CLP allows supplemental information on an attached tag if space is genuinely insufficient, but core elements must be directly on the packaging.

7. Small Packaging Exemptions

CLP Article 29 provides reduced labeling provisions for packages that are too small to accommodate the full CLP label. The threshold is 125 mL or less for the package capacity. This is relevant for small travel candles, wax melt clamshells, and sample sizes.

Under the small-packaging exemption, you may:

• Omit certain precautionary statements (P-codes) from the label, provided they are accessible elsewhere (e.g., on outer packaging or a supplemental leaflet).
• Use fold-out labels, peel-back labels, or attached tags to provide the full CLP information.
• Omit hazard statements in some cases where space is genuinely insufficient, provided the information is accessible on outer packaging.

However, even on the smallest package, you must always include:

• Product identifier (trade name + hazardous components)
• Signal word ("Warning" or "Danger")
• Hazard pictograms (at minimum 1 cm x 1 cm)
• Supplier name and information
• UFI code

8. UFI Codes — What They Are and How to Get One

The Unique Formula Identifier (UFI) is a 16-character alphanumeric code that links a product to its exact chemical formulation in the ECHA Poison Centre database. It was introduced by Annex VIII of CLP (Commission Delegated Regulation (EU) 2017/542) to improve the speed and accuracy of poison centre responses.

Mandatory timelines

• January 1, 2021: UFIs became mandatory for consumer-use and professional-use mixtures classified as hazardous.
• January 1, 2024: UFIs became mandatory for industrial-use mixtures.
• January 1, 2025: Final transition deadline. All legacy national-format Poison Centre notifications had to be converted to the harmonized PCN format with UFIs. As of this date, every hazardous mixture on the EU market must have a UFI.

Key rules for UFI codes

• One UFI per unique formulation. If you sell 15 different candle scents, you need 15 UFI codes. Each code is permanently linked to a specific composition.
• Reformulation requires a new UFI. If you change the fragrance formulation (even slightly — swapping one ingredient, changing concentrations), you must generate a new UFI and submit an updated Poison Centre Notification.
• Same formulation, different products: If two products have the exact same composition, they can share the same UFI. However, the PCN must cover all product forms and trade names.
• The UFI is free to generate. ECHA provides a free UFI Generator tool. You need your company's VAT number (or another fiscal identifier) and an internal formulation number you assign.

How the UFI appears on the label

The UFI must be printed on the label prefixed by the letters "UFI" in capitals, followed by a colon. The format is: UFI: XXXX-XXXX-XXXX-XXXX. It must be clearly visible, legible, and indelible.

9. Step-by-Step: Creating Your CLP Label

This walkthrough takes you from raw materials to a printed, compliant CLP label. Follow each step in order:

Step 1: Get the SDS from your fragrance supplier

Request the Safety Data Sheet for every fragrance oil or essential oil you use. Ensure the SDS is in EU format (REACH Annex II). Section 3 lists the classified substances and their concentration ranges. Section 2 provides the supplier's classification of the fragrance concentrate itself.

Step 2: Classify the mixture

Calculate the concentration of each classified ingredient in your finished candle (fragrance percentage x ingredient percentage in the fragrance). Apply the CLP Annex I summation and additive methods. Many fragrance suppliers now provide a pre-calculated CLP classification at standard usage rates — verify this against your actual usage rate.

Step 3: Select pictograms based on classification

Map each hazard category to its required pictogram. Most candles will need GHS07 (exclamation mark) and possibly GHS09 (environment). Note CLP Article 26 precedence rules: GHS07 for skin/eye irritation is not needed if GHS05 (corrosion) is present, but if GHS07 is triggered by skin sensitization (H317), both GHS07 and GHS08 must appear if both are triggered.

Step 4: Write H-statements and select P-statements

Write out the full text of every H-statement corresponding to your classification. Then select appropriate P-statements from CLP Annex IV for each hazard class. Limit to six P-statements if possible.

Step 5: Generate the UFI code

Go to the ECHA UFI Generator. Enter your VAT number and an internal formulation number. The tool generates a unique 16-character UFI. Record this code alongside your formulation documentation.

Step 6: Submit the Poison Centre Notification

Log in to the ECHA Poison Centres portal and create a PCN for your product. You will need: the complete ingredient list with exact percentages, the UFI, product category, colour, pH (if applicable), packaging type, and the list of EU member states where the product will be sold.

Step 7: Design the label layout

Lay out the label to include all mandatory elements. Ensure pictograms meet the minimum size requirements. Place the UFI where it is clearly legible. Include the EU supplier's name, address, and phone number. Include the net weight.

Step 8: Translate into target market language(s)

Translate all text elements into the official language(s) of each member state where you will sell. Use the official translations published by ECHA for H- and P-statements; do not freelance these translations.

Step 9: Print and apply

Print on durable, legible label stock. The label must be firmly affixed to the package and must not become illegible under normal conditions of use and storage. Apply the label before the product enters the EU market.

10. Common CLP Labeling Mistakes

Based on EU market surveillance reports and marketplace enforcement actions, these are the most frequent CLP labeling errors made by candle and wax melt sellers:

Wrong pictogram size

Under-sized pictograms are the most common physical label defect. For a standard candle (125 mL–3 L), the minimum is 1.6 cm x 1.6 cm per pictogram. Falling short by even a few millimeters can trigger an enforcement notice.

Missing UFI code

The UFI is the element most frequently omitted by sellers new to EU compliance. Without it, your label is non-compliant regardless of how perfect the rest of the label is. Amazon EU and other marketplaces are increasingly scanning listings for UFI presence.

English-only labels for non-English markets

CLP Article 17(2) requires labels in the local language. An English label shipped to a German or French consumer is a regulatory violation.

Using OSHA/US GHS format instead of EU CLP format

The US GHS implementation under OSHA HazCom 2012 uses a different SDS format and has different classification thresholds than EU CLP. A US-format GHS label is not the same as an EU CLP label.

Omitting individual allergen names

CLP requires the names of the classified substances that contribute to the classification to appear on the label (Article 18). Listing only "fragrance" or "parfum" without naming the specific allergens (linalool, limonene, citronellol, etc.) is non-compliant.

Not updating labels when reformulating

Every formulation change that affects the composition of classified ingredients requires re-assessment. If the classification changes, the label must change. If the formulation changes at all, a new UFI is required and a new PCN must be submitted.

Confusing CLP with EN 15494 fire-safety symbols

The fire-safety pictograms specified in EN 15494 (burn within sight, keep away from flammable materials, keep away from children) are candle product safety symbols, not CLP hazard pictograms. Both are required on candle packaging, but they serve different purposes.

Using a US address as the supplier

The supplier information on the CLP label must be an entity established in the EU. A US headquarters address does not satisfy CLP Article 17(1)(a). Your EU importer, distributor, or Responsible Person's address must appear on the label.