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Ultramarine Blues are the most widely used blue pigments in Cosmetics because of their unique coloristics and performance.
As regards color, Ultramarine Blues provide a unique reddish undertone blue shade and are able to easily tint many colors. Moreover, Ultramarine Blues lack metamerism; therefore they do not change color in function of the iluminant. As regards their performance in Cosmetics, Ultramarine Blues very well fit into such application because of their:
FDA approval, in EU listed as INCI number 77007
High purity - Low level of impurities
Sufficient tinting strength
Insolubility, avoiding migration tendencies
The C series are Ultramarine Blues in which there is a special quality control on Lead, Arsenic and Mercury content as well as a microbiological analysis to guarantee the absence of microorganisms in the pigment.