| abstract |
Provided is a solid preparation suitable for use in the treatment of keratin fibers for hair dyeing. At least one water-insoluble super-disintegrant selected from the group consisting of croscarmellose, crospovidone, and cross-linked starch, having a tablet form, and a color-imparting agent, an alkalizing agent, A solid formulation comprising at least one active agent selected from the group consisting of an oxidant and a thickener, wherein the superdisintegrant is characterized by a water absorption of at least 0.5. [Selection figure] None |