Watch-out database → Detailed ingredient information:

CYCLOPENTASILOXANE (D5)

CAS Nr.

541-02-6

Restricted as per EC regulation 1223/2009?

Entries

Other observations

Restricted in cosmetic products under REACH

Date of update Deadline Content of update Reference Source Obelis articles
17/05/2024 06/06/2027 Updated REACH restrictions for D5 in cosmetic products: a) up to a maximum concentration of 0,1% in rinse-off cosmetic products since January 31, 2020; b) up to a maximum concentration of 0,1% in leave-on cosmetic products as of June 6, 2027. Commission Regulation (EU) 2024/1328 EC REACH update: the European Union further restricts the use of silicones D5 and D6 in cosmetic products
10/01/2018 31/01/2020 All wash-off cosmetic products must contain less than 0.1% of D5. Hence, wash off products with higher % should be reformulated. Commission Regulation (EU) 218/35 EC Silicones on the spot again
Proposal on ECHA No timeline applicable for now Leave on personal care products shall not have D4/D5/D6 in concentrations > 0.1%  Proposal ECHA ECHA