FIELD: medicine.
SUBSTANCE: invention represents a skin external preparation containing: ingredient (1) - triterpenic acid and/or its derivative; and ingredient (2) selected from - 4-n-butylresorcine, 4-n-hexylresorcine, 4-cyclohexylresorcine or its salt.
EFFECT: higher long-storage stability of triterpenic acid.
8 cl, 8 ex, 4 tbl
Authors
Dates
2011-09-27—Published
2007-04-24—Filed