During its plenary meeting on March 25, 2015, the SCCS has adopted its Opinion on the cosmetic ingredient Cyclopentasiloxane (D5). It has been published on May 20, 2015, and it was open for comments until June 19, 2015, period then extented until August 20, 2015.
Background
Cyclopentasiloxane (D5) (CAS: 541-02-6, EC: 208-764-9) is widely used in cosmetic products due to its unique functions as antistatic, emollient, humectant, solvent, viscosity controlling and hair conditioning agent.
In June 2010, the Scientific Committee for Consumer Safety (SCCS) assessed the consumers risks associated with the use of D5 in combination with its isomer D4 (Cyclomethicone, Octamethylcyclotetrasiloxane, CAS: 556-67-2), a substance that has been classified as a CMR 2 substance (Carc. 2) under Regulation 1272/2008.
Upon request of the European Commission, in January 2014 Cosmetic Europe submitted a safety assessment specifically dedicated to D5 in cosmetic products. This submission was intended to demonstrate the safety of this ingredient when used in cosmetic leave-on, rinse-off and spray type products.
For exhaustive background information, see the article
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SCCS: 7 requests for scientific Opinions (April 24, 2014)
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Opinion
1. On the basis of the data provided does the Scientific Committee on Consumer Safety (SCCS) consider Cyclopentasiloxane (D5) safe as cosmetic ingredient?
The SCCS considers that the use of Cyclopentasiloxane (D5) in cosmetic products is safe except for use in body lotion and hair styling formulations and in those product forms that can give rise to lung exposure of the consumer through …
