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Silver Zinc Zeolite: final Opinion of the SCCS

Silver zinc zeolite : Opinion finale du CSSC

Following the submission of a safety dossier by industry, the SCCS has assessed the safety of Silver Zinc Zeolite, a preservative transferred to Annex II (prohibited substances) to European Cosmetics Regulation 1223/2009 by the first “CMR” Regulation. The Scientific Committee has just adopted its final Opinion.

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Silver Zinc Zeolite (SZZ) (CAS No.130328-20-0, EC No.603-404-0) with INCI name “Ammonium Silver Zinc Aluminium Silicate” used for its antimicrobial effects.
Following its classification as “Toxic for reproduction Category 2” in the CLP Regulation, the substance has been banned for use in cosmetics by Regulation 2019/831 (the first of the “CMRs” Regulations).
In August 2020, the Commission services received a dossier submission by industry to support the safety assessment of SZZ as a preservative in cosmetic products, in particular in spray deodorant and powder foundation.
The SCCS published its preliminary Opinion in March 2023.

For an exhaustive background information, see the articles
Silver Zinc Zeolite: request for Opinion to the SCCS, CosmeticOBS, 27 June 2022
Silver Zinc Zeolite: preliminary Opinion of the SCCS, CosmeticOBS, 11 April 2023

This Opinion has been subject to a commenting period of eight weeks after its initial publication (from 22 March to 5 June 2023). Comments received during this period were considered by the SCCS.
For this Opinion, main changes occurred in the SCCS comment in the inhalation exposure, and the MoS was adapted accordingly.

The final Opinion

1. In light of the data provided and taking under consideration the …

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