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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

During a clinical trial with patients suffering from melasma (pigmentary disorder of facial skin), the topical application of a Metformin formulation (30%, w/w) daily for 8 weeks resulted in no adverse effects. Based on the results of this study, it can be concluded thatMetformin has no potential for skin sensitization.

Additional information