To provide a method for producing solid detergent composition which is not only safe and, in addition, can surely remove dirt but also is transparent without coloring, moreover remains solid without collapsing by dissolution while in use in a bathroom or the like, gives a remarkable feeling of soft and mild lubricity to the skin, and enables activation of the epidermis and local peeling of the skin to have the metabolism of the skin by peeling.

The solid detergent composition is obtained by adding an α- hydroxy acid as the essential component to a soap base and further compounding a placenta extract, sodium hyaluronate, an aloe extract, squalane, collagen, a licorice extract or the like with the resulting mixture in addition to the α-hydroxy acid such as glycolic acid. The method for producing a transparent bar soap having a peeling effect comprises the steps of imparting perfume to the above composition, cooling and setting up, cutting, drying, and die cutting.