CLARIFICATION: Reacting to an article in our last issue about Revo’s use of a sustainable bio-acetate, Mazzucchelli points out that the di-ethyl phthalate that it uses for the production of cellulose acetate is not a toxic component. Commonly used in eyewear, it is classified as a non-hazardous chemical under EU Regulation 1272/2008. Tests have confirmed that it is biocompatible by the ISO 10993 standard. Mazzucchelli also stresses that eyeglasses are subject to strict regulations because they are medical devices. The supplier of Revo’s acetate, Jin Yu Plastic Products, notes that the European Union decided in 1999 to limit the content of phthalates in baby pacifiers, mouth-contact toys and other products used by children under the age of 3 because they can harm normal hormone metabolism. It notes that there are strict regulations on the content of phthalates in cosmetics and packaging materials.