| abstract |
PROBLEM TO BE SOLVED: To provide means for improving the fragility of a film formed by a skin external preparation, which is not derived from an aqueous component, in a skin external preparation in the form of a water-in-oil emulsifier. SOLUTION: Hydroxyapatite powder containing a coating layer is contained in a skin external preparation in the form of 0.01 to 5 mass% water-in-oil emulsifier. The emulsifier preferably contains an organically modified clay mineral, and the organically modified clay mineral is preferably hectorite modified with dimethyl distearyl ammonium chloride. Furthermore, it is preferable to contain dimer acid diester and amino group-containing silicone. [Selection figure] None |