BIORIUS Information Letter 118: The so awaited D4, D5 and D6 restrictions in wash-off and leave-on cosmetic products are notified

The Draft Regulation on Cyclotetrasiloxane (D4), Cyclopentasiloxane (D5) and Cyclohexasiloxane (D6) has been notified to the World Trade Organization (WTO) on the 22nd of June (HERE and HERE). This Regulation will amend the Annex XVII of the REACH Regulation and it is expected to be adopted in Q4 2023. The restrictions applicable to cosmetics are described below.

Cyclotetrasiloxane (D4):
Already forbidden in the cosmetic products. Only technically unavoidable traces are tolerated at the max levels below:
– In wash-off products: already restricted at max 0.1%
– In leave-on products: max 0.1% from Q4 2026
Cyclopentasiloxane (D5)
– In wash-off products: already restricted at max 0.1%
– In leave-on products: max 0.1% from Q4 2026
Cyclohexasiloxane (D6)
– In wash-off products: max 0.1% from Q4 2025
– In leave-on products: max 0.1% from Q4 2026

We hope that this will be of help and stay at your disposal for any questions related to this topic. Should you have any question, please, feel free to contact your CRM (Customer Relationship Manager) or contact us directly: info@biorius.com.

Thanks to Stéphanie Annet for writing this article.

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