All Bruder products undergo extensive testing and are made using extremely high-quality materials. For example, Bruder masks aren’t filled with inexpensive gels or silica beads like most other masks. Instead, the Bruder mask is the only mask on the market that contains patented MediBeads®. By silver-infusing the beads directly into the bead structure we’ve ensured that you get a pure, clean, moist heat with every use. This unique design also helps to repel bacteria and keep eyelids clean. This same attention to detail and commitment to scientifically-backed material selection is what makes Bruder products stand out.