2. polymethylsilsesquioxane (pmsq)
pmsq is a spherical powder with a very uniform particle size distribution. it generally has two microstructures. the spherical pmsq with peak-like protrusions has a better concealing effect than the spherical pmsq. the smaller the particle size of pmsq, the more matte the makeup will be. the larger the particle size, the better the skin feel. the more silky.