EU Siloxanes D5 & D6 Restriction: Full Cosmetic Ban Timeline

Commission Regulation (EU) 2024/1328 amending REACH restricts Octamethylcyclotetrasiloxane (D4), Decamethylcyclopentasiloxane (D5) and Dodecamethylcyclohexasiloxane (D6) to concentrations below 0.1% by weight. The general restriction on placing on the market applies from 6 June 2026.

For leave-on cosmetic products the same 0.1% limit becomes fully applicable from 6 June 2027. Rinse-off products containing D5 already faced earlier restrictions. Brands should reformulate affected products (especially leave-on skincare and haircare) well ahead of the 2027 deadline and update safety assessments and CPNP notifications.

Kompass Europe supports reformulation planning, PIF updates and CPNP filings related to siloxane restrictions.

This summary is for informational purposes only. Always verify current requirements with official sources (EUR-Lex, ECHA) and seek professional advice. This does not constitute legal or regulatory advice.