abstract |
Provided are an oil-in-water emulsion composition and a cosmetic substance obtained, without using a surfactant, by preparing a Pickering emulsion using a spherical powder of polylactic acid, the oil-in-water emulsion composition and the cosmetic substance providing a fresh and refreshing feeling of use without any powdery texture and having a superior emulsion stability. An oil-in-water emulsion composition containing (a) a spherical powder of polylactic acid, the spherical powder having an average particle diameter of 0.5 to 1.5 µm and 90% by volume or more of all particles having particle diameters of 3 µm or less, (b) an oil phase content, and (c) a water phase content, and containing essentially no surfactant is obtained. An objective cosmetic substance is obtained by using the oil-in-water emulsion composition. |