into the water-based fibroin solution. The solution was then cast on a holographic diffraction-grating master mould to obtain free-standing silk gratings with a grating pitch of 600 grooves per ...

The formula features the brand's silk protein, which is a blend of sericin and fibroin. According to New York City-based dermatologist Morgan Rabach, MD, "sericin forms a layer of protection over ...