Ingredient
DMDM Hydantoin
A preservative that works by slowly releasing small amounts of formaldehyde. EU rules require products above a threshold to carry a specific label warning.
What it does
Preservative
Keeps the product free of microbial growth in use.
What we tell people
- Contains a formaldehyde-releasing preservative
This product contains a preservative that works by slowly releasing formaldehyde. EU rules require products above a threshold to carry a specific label warning.
Why: This group is genuinely subject to a labelling obligation, so it is marked regulatory. The ingredient is not formaldehyde itself, and the flag says so.
Regulatory position
Tied to a named instrument rather than summarised. Presence in an ingredient glossary is not evidence that a substance is permitted at any concentration or for any purpose.
EU · restricted
Regulation (EC) No 1223/2009, Annex V
Products releasing formaldehyde above the threshold must be labelled 'releases formaldehyde'.
Reference
- In our catalogue
- 6 products
Ingredient reference data © European Union, 1995–2026, reused under CC-BY 4.0. Plain explanations are BeautySignal's own. This is information, not medical advice. How we source this.