Description
Nickel diarsenide [1]; Nickel arsenide [2] are inorganic compounds belonging to the class of metal arsenides, formed by the stoichiometric combination of nickel and arsenic in two different proportions. In the European context no technical function is assigned to them in the category of cosmetic ingredients.
This substance is listed in Annex II of Regulation (EC) No 1223/2009 on cosmetic products, under reference 1457. The ingredient has a CMR classification of Carcinogenic Cat. 1A, in accordance with Regulation (EC) No 1272/2008 on the classification, labelling and packaging of substances and mixtures. The category Carcinogenic Cat. 1A groups substances with known carcinogenicity in humans, based largely on human evidence, in accordance with the criteria of Regulation (EC) No 1272/2008. The Annex II entry does not establish a maximum permitted concentration or a differentiated product-type restriction.
Since it has no recognized cosmetic technical function, this compound has no described role of use in conventional cosmetic formulations. The information presented is for technical reference only and does not constitute a recommendation for use or an efficacy claim.