Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Description of key information

Key value for chemical safety assessment

Skin sensitisation

Endpoint conclusion
Endpoint conclusion:
no adverse effect observed (not sensitising)
Additional information:

In addition to the negative test results, Laponite has been used for many years in personal care products at low concentrations to provide structure to formulations. In more than 30 years of use in these fields, no data has been found to indicate that this material leads to sensitisation in the general public.


Migrated from Short description of key information:
The study performed assessed the skin sensitisation potential of this substance in mice using the LLNA (Local Lymph Node Assay) to recommended guideline methodology. The test material was considered to be a non-sensitiser under the conditions of the test

Justification for classification or non-classification

Results of the skin sensitisation test (LLNA in mice) showed no indication that the material is a skin sensitiser. Laponite has been used for many years in personal care products at low concentrations to provide structure to formulations. In more than 30 years of use in these fields, no data has been found to indicate that this material leads to sensitisation in the general public. Respirable exposure would not be an expected route for sensitisation for product uses and during the lifetime of the manufacturing facility where dust inhalation might be expected, there have been no incidences of operators developing respirable (or dermal) sensitisation to this substance. Therefore it is concluded that this substance is not a sensitiser either dermally or respirably