| 摘要 |
PURPOSE:The titled compounding agent having improved stability of resorcin and preventing change in color, obtained by adding a hydroxycarboxylic acid to a resorcin compound agent useful as a skin cosmetic or a germicidal external preparation for the skin, comprising clay minerals and/or inorganic powder as a base. CONSTITUTION:A resorcin compounding agent useful as a cosmetic such as cream agent, lotion agent, stick agent, etc. or germicide against skin diseases such as pimple, steatorrhea, baldness, tinea trychophytina, etc., containing preferably 1-80wt% clay minerals and/or inorganic powder having conrtrolling action on hardness and viscosity, is blended with 0.005-2wt%, especially 0.01-1wt% hydroxycarboxylic acid, especially lactic acid, citric acid, gluconic acid, or tartaric acid, so that stability to light, air, heat or iron of resorcin, which is unstable when clay minerals are present in an aqueous system, is improved, change in color from yellow to brown is prevented and effect of resorcin is maintained for a long period. |
