| 摘要 |
(1) a porous spherical disintegrative silica impregnated with a water-insoluble skin benefit agent, wherein: (a) the porous spherical disintegrative silica has an average volume particle size of from about 3µm to about 20& micro;m, a maximum particle size of no more than about 50µm, and a pore volume of from about 1.5cm3/g to about 3.0cm3/g; and provides a certain dynamic viscoelasticity when sheared; (b) the water-insoluble skin benefit agent having a solubility in water at less than about 0.1g/l at 25°C and having a molecular weight of no more than about 5,000, selected from the group consisting of liquid water-insoluble skin benefit agents, solid water-insoluble skin benefit agents which dissolve in liquid water-insoluble skin benefit agents, solid water-insoluble skin benefit agents which dissolve in emollients and/or volatile solvents, and mixtures thereof; and (2) a suitable carrier. |
