Cosmetic pigments and functional fillers of Merck KGaA sold under the brand names Biron, Colorona and Timiron have been certified in compliance with the Ecocert standard.
Merck notes that Ecocert is currently the most important internationally recognised certificate for natural cosmetics. To receive this certificate, cosmetic ingredients must meet very strict requirements relating to the source of material, the manufacturing process, and the purity and traceability of the material.