EU Regulation 2018/35 modifying Annex XVII of Regulation (EC) No. 1907/2006 took effect on February 1. The regulation immediately restricts the marketing and sale of two siloxanes (octamethylcyclotetrasiloxane: D4 and decamethylcyclopentasiloxane: D5) in a concentration equal to or greater than 0.1% by weight in rinse-off cosmetics. That’s as good as a total prohibition. Two years ago, the ECHA’s Member State Committee (MSC) approved...