Traditional makeup brushes use chemical glue to attach hair, aluminum parts(the ferrule), and wooden handle together. However, FS KOREA knew there must be a more eco-friendly way that also keeps consumers and workers safe. So, FS KOREA developed the GLUE ZERO BRUSH. By not using any chemical glues with this chic brush, they are to reduce by-products from chemical glue, while eliminating toxic materials. In addition, there was no need for animal testing to approve the new Glue Zero Brush.