Description
Daidzein is an isoflavone, characterized by a benzopyrone structure substituted with hydroxyl groups. It is also identified by the names Daidzeol and 4',7-Dihydroxyisoflavone. Its declared technical function in the European inventory is SKIN CONDITIONING - MISCELLANEOUS, that is, skin conditioner within the category of miscellaneous agents.
Under Regulation (EC) No 1223/2009 on cosmetic products, this substance is incorporated in Annex III, which groups the substances that cosmetic products must not contain except subject to the restrictions laid down, under reference 374. The maximum authorized concentration in the ready-for-use product is "0,02 %". The conditions associated with this entry state that "From 1 February 2025 cosmetic products containing that substance and not complying with the conditions shall not be placed on the Union market. From 1 November 2025 cosmetic products containing that substance and not complying with the conditions shall not be made available on the Union market." No additional mandatory labelling warnings have been set specifically linked to this entry, nor restrictions by type of cosmetic product. The substance has no CMR classification under Regulation (EC) No 1272/2008.
The information presented is for technical reference only and does not constitute a recommendation for use or an efficacy claim.