The European Chemicals Agency (ECHA) has announced the new expected date of submission of UK of its restriction dossier on cosmetic ingredients octamethylcyclotetrasiloxan (known as D4, with CAS No. 556672 & EC No. 2091367) and decamethylcyclopentasiloxane (known as D5, with CAS No. 541026 & EC No. 2087649).
Initially expected this month, the dossier will be submitted before April 17, 2015.
The proposed restriction states that wash-off personal care products in the EU shall contain no more than 0.1% of D4 nor more than 0.1% of D5. The substances have been described to be persistent, bioaccumulative and toxic (PBT), with very persistent and very bioaccumulative (vPvB) characteristics. Their release into fresh water and subsequent persistence and build-up in sediments followed by bioaccumulation through the food chain has also been cited to be of concern.