CLP Labels for Wax Melts: Complete UK Labelling Requirements

Wax melts are chemical mixtures under UK law, and every scented wax melt you sell needs a CLP-compliant label. The requirements are the same as for candles in principle, but wax melts have their own practical complications — clamshell packaging, multi-pack labelling, and fragrance concentrations that sometimes differ from candle formulations.

This guide covers the CLP labelling requirements specific to wax melts. For the full regulatory background, see our complete CLP labels guide.

This guide covers GB CLP requirements. This is not legal advice.

Why Wax Melts Need CLP Labels

Wax melts contain fragrance oils — chemical substances with known hazard classifications. When you combine fragrance oil with wax (and potentially dye or other additives), the resulting product is a chemical mixture that must be classified under the GB CLP Regulation.

If the mixture classifies as hazardous — and scented wax melts almost always do — you must apply a CLP label before selling the product.

This applies regardless of where you sell: Etsy, Amazon, craft fairs, your own website, or even giving them away at events.

Wax Melt Classification Considerations

Wax melts share most classification characteristics with candles since both are wax + fragrance oil mixtures. However, there are a few wax-melt-specific points:

Fragrance load may differ. Some wax melt makers use higher fragrance percentages than candle makers (10–12% is not uncommon for wax melts, versus 6–10% for candles). Higher fragrance loads push hazardous component concentrations up, which can change the classification — moving from a less severe to a more severe hazard category, or triggering an additional classification that wouldn't apply at lower concentrations.

No combustion during normal use. Unlike candles, wax melts are heated by an electric or tealight warmer, not burned directly. However, this does not exempt them from CLP — the classification is based on the mixture's inherent hazard properties (flammability, skin sensitisation, etc.), not whether it's burned.

Multiple shapes and formats. Wax melts come in snap bars, hearts, individual melts, sample pots, and loose bags. The labelling requirement is the same for all formats, but the practical application varies (see packaging section below).

For a step-by-step classification walkthrough, see our CLP labelling guide for candle and wax melt makers.

Labelling Wax Melt Packaging

Clamshell Snap Bars

The most common wax melt format. The CLP label goes on the back of the clamshell. Ensure the label is visible when the package is in its normal retail position — not hidden underneath.

Clamshells typically have enough surface area for a full CLP label with all six required elements. Use a durable label material (vinyl or coated paper) since clamshells are handled frequently.

Individual Wax Melts (Hearts, Stars, Loose Shapes)

If selling individual melts, each one doesn't need its own label — label the outer packaging (bag, box, or wrapper). But if you sell a single unwrapped melt with no packaging, you'll need a swing tag or wrapped insert with the CLP information.

Multi-Packs and Sample Boxes

If a box contains multiple different fragrances, each fragrance has a different formulation and potentially a different classification. Options:

• Individual wrapping: Each melt has its own labelled wrapper — cleanest approach but more packaging
• Outer box label: A combined label listing all fragrances and their respective hazard information — legally permissible but can become cluttered with many variants
• Information insert: A card inside the box with CLP data for each fragrance — works if the information is accessible without opening individual melts

The key requirement: the CLP information for each hazardous product must be accessible to the consumer before or at the point of use.

Wax Melt Sample Pots

Small sample pots present the same minimum-size challenge as tea lights. If the pot is too small for a full label, apply the label to the outer packaging. Pictograms must be at least 10 × 10 mm — don't shrink them below this.

Common Wax Melt CLP Mistakes

Assuming all melts have the same classification. If you use different fragrance oils, each product potentially has a different classification. A lavender wax melt and a cinnamon wax melt will have different hazard profiles even if the base wax and fragrance load are identical.

Labelling by fragrance oil name only. The "contains" line on your CLP label must list the chemical names of hazardous components (linalool, limonene, eugenol), not the fragrance oil's trade name.

Reusing candle labels for wax melts. If your wax melts use a different fragrance concentration than your candles (which is common), the classification may differ. Even if you use the same fragrance oil, a melt at 10% and a candle at 8% need separate classification checks.

Forgetting net weight. Every CLP label must include the nominal quantity. For wax melts, state the weight in grams (e.g., "Net wt: 50 g" for a snap bar).

Checking Your Labels

Use our free CLP label checker to verify your wax melt labels include all six required elements. For detailed guidance on which pictograms might apply to your formulations, try the CLP pictogram finder.

Sources

• HSE — The GB CLP Regulation
• HSE — CLP Labelling and Packaging Requirements
• Regulation (EC) No 1272/2008 — CLP Regulation (retained GB law)