>
6. November 2020
chem. Methylene-bis-Benzotriazolyltetramethylbutylphenol, is a yellowish organic solid and practically insoluble in water. The nanomaterial has been approved in the EU as a broadband UV filter in cosmetic products. It forms a protective film on the upper skin layer and scatters reflects and absorbs the UV rays of the sun, especially UV-A radiation.