Guides on CLP labelling, IFRA limits and selling scented products with confidence.
Why vanillin makes vanilla candles smell so strong and turn brown, how ECHA classifies it, and why it rarely decides what goes on your candle's label.
Read articleWhy most candles say Warning, when a wax melt or reed diffuser has to say Danger, and why some labels carry no signal word at all. With worked examples.
Read articleCinnamaldehyde is the smell of cinnamon and a strong skin sensitiser. Why a trace of it in your fragrance oil puts H317 on a holiday candle, with a worked example.
Read articleSkin Sens. 1, 1A and 1B look alike on a fragrance SDS, but they trigger H317 and EUH208 at very different levels in your candle. Here are the limits, with a worked example.
Read articleWhy citrus notes fade, what d-limonene's harmonised CLP entry says, and how the CAS number on your SDS can add an environment pictogram to your candle.
Read articleYour fragrance oil's SDS says H304 and Danger. Why that almost never reaches a candle or wax melt, and when it does reach a reed diffuser, with child-resistant caps.
Read articleLinalool gives lavender and bergamot their floral note. Why fresh linalool barely sensitises, why oxidised linalool does, and when it puts H317 on your candle.
Read articleWhy a scented candle gets the exclamation mark or the environment pictogram, why H412 gets no pictogram at all, and how your fragrance load decides which one you need.
Read articleParaffin wax has no EU hazard classification. What ECHA's records show, the refining catch behind the scare stories, and what it means for your candle label.
Read articleTwo 'EUH' codes appear on fragrance safety data sheets and do very different jobs. Here's how EUH208 and EUH210 differ — and which one your candle label needs.
Read articleRegulation (EU) 2023/1545 grows the list of named fragrance allergens from 26 to around 80. What changed, the 2026 and 2028 deadlines, and what it means for candles.
Read articleA Safety Data Sheet isn't the same as a CLP label — and most candle makers never have to give one to their customers. Here's when an SDS is actually required, and when the label is enough.
Read articleThe 16 characters of a UFI aren't random — they encode who filed it and which formulation. Here's what a UFI reveals, and how to decode one yourself.
Read articleWhen you notify a poison centre, your home-fragrance product needs a EuPCS code — and for candles, diffusers and sprays it's almost always a PC-AIR one. Here's what each code means and how to choose.
Read articleIFRA Standards limit how much of a fragrance you can safely use — and the limit depends on your product's category. Here's what the categories mean for candles, wax melts and diffusers.
Read articleThe 'Contains…' line on fragranced products isn't optional. Here's what EUH208 requires and when each allergen must be named.
Read articleMost scented candles sold in the EU and UK need a CLP hazard label. Here's how to tell whether yours does — and what happens if you skip it.
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