| 摘要 |
Disclosed are anhydrous antiperspirant gel-solid stick compositions which comprise a particulate antiperspirant active; a solid non-polymeric gellant selected from the group consisting of 12-hydroxystearic acid, esters of 12- hydroxystearic acid, amides of 12-hydroxystearic acid, and combinations thereof, and an anhydrous liquid carrier having an average solubility parameter of from about 3 to about 13 (cal/cm3)0.5, wherein the composition has a visible residue index of from about 11 to about 30 L-value, a product hardness of from about 500 gram.force to about 5,000 gram.force, a ratio of an elastic to viscous moduli of from about 0,1 to about 100. The refractive indices of the particulate antiperspirant active, solid non-polymeric gellan t, and anhydrous liquid carrier are not matched. The solid non-polymeric gellan t is preferably a crystalline material having an average particle size of less than about 1 .mu.m, and/or having an elongated particle morphology having an aspect ratio of greater than about 2. These antiperspirant gel-solid stick compositions provide improved low residue performance, efficacy and aestheti cs.
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