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POROUS SILICA PARTICLE HAVING SURFACE SMOOTHNESS, METHOD FOR PRODUCTION OF THE POROUS SILICA PARTICLE, AND COSMETIC COMPRISING THE POROUS SILICA PARTICLE
POROUS SILICA PARTICLE HAVING SURFACE SMOOTHNESS, METHOD FOR PRODUCTION OF THE POROUS SILICA PARTICLE, AND COSMETIC COMPRISING THE POROUS SILICA PARTICLE
Disclosed are porous silica-based particles having high surface smoothness, a method for producing the porous silica-based particles, and a cosmetic comprising the porous silica-based particles. The porous silica-based particles have an average particle diameter of 0.5 to 30 µm and have a surface smoothness of a level to such an extent that, when the entire surface of the particle is observed from a photograph thereof taken by a scanning electron microscope (SEM) with a magnifying power of 10,000, a foreign matter attached to the surface thereof can be hardly seen.
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