| abstract |
The dyeing effect, i.e. the color absorption, and the stability of a composition for dyeing of human hair comprising at least one direct dyestuff in an aqueous or aqueous-alcoholic medium are considerably improved by the addition of 0.1% to 7.5% by wt., calculated to the total composition, of at least one hydroxy-C 2 -C 4 -alkyl Guar gum or the quaternary salts thereof, particularly from 0.25% to 2.5% by wt. of hydroxypropyl Guar gum. |