| abstract |
Disclosed is an endermic preparation for external application, which comprises a kojic acid or kojic acid derivatives as melanogenesis-inhibiting agents along with sodium hydrogensulfite and/or hydrogen peroxide as a discoloration-inhibiting agent. By addition of the discoloration-inhibiting agents, discoloration of kojic acid and its derivatives during storage thereof may effectively be prevented, and the high commercial value of the endermic preparation is maintained. |