To obtain the subject cosmetic, quasi-drug or miscellaneous article, intended for thickening or solidifying hot water used for bathing in order to exhibit body thermal insulation effect or body weight-reducing effect, and also easily dischargeable after bathing.

This bath cosmetic, bath quasi-drug or miscellaneous article for bathtub, contains, as gelling agent, a polyacrylic acid salt, acrylic acid/ acrylic acid salt copolymer, crosslinked-type polyacrylic acid salt, isobutylene/ maleic anhydride copolymer salt, or polyaspartic acid salt, and, as degelling agent, an inorganic salt or organic salt.