On a proposal from Norway, the European Chemicals Agency (ECHA) has opened a public consultation as part of the process to identify Trisiloxane as a SVHC (Substance of Very High Concern) under the REACH Regulation. The consultation is open until 14 October 2024.
Octamethyltrisiloxane (CAS No.107-51-7, EC No.203-497-4, INCI: Trisiloxane) is an ingredient listed in the CosIng with the functions: Antifoaminf, Skin conditioning.
The substance is not currently regulated by European Cosmetics Regulation 1223/2009, nor does it have an entry in European CLP Regulation 1272/2008.
At the end of its assessment under CoRAP, Norway concluded that the substance was considered to meet the criteria for very persistent and very bioaccumulative (vPvB) substances and recommended restrictions in order to reduce as much as possible all emissions and environmental releases of the substance.
In its “Annex VI” report, Norway confirms that it considers the substance to be vPvB.
This identification as a SVHC is the subject of the consultation that ECHA opened on 30 August 2024, and which will close on 14 October.
Sources
• Six proposals to identify new substances of very high concern (SVHCs) - Octamethyltrisiloxane (EC 203-497-4), ECHA Weekly, 4 September 2024
• Substance Evaluation Conclusion and Evaluation Report, Octamethyltrisiloxane (L3), Norwegian Environment Agency, December 2021
• Substances of very high concern identification - Octamethyltrisiloxane, ECHA, 30 August 2024
• Annex XV report - Proposal for identification of a substance of very high concern on the basis of the …
