Abstract: The invention relates to new hair-treatment formulations containing(a) 1 to 30% by weight of sugar surfactants,(b) 1 to 10% by weight of silicone compounds liquid at room temperature and(c) less than 2% by weight of pearlescing waxes, with the proviso that the formulations are made up to 100% by weight with water and typical additives. The formulations are stable against clouding and show improved brilliant pearlescence.

Abstract: A diaminoalkane of general formula (I) in which R.sub.1 to R.sub.10 stand independently of each other for hydrogen, a (C.sub.1 -C.sub.4)-alkyl group, a hydroxy-(C.sub.2 -C.sub.3)-alkyl group, a (C.sub.1 -C.sub.4)-alkoxy-(C.sub.2 -C.sub.3) alkyl group, an amino- (C.sub.2 -C.sub.3) alkyl group or a 2,3-dihydroxypropyl group and n is a number from 1 to 6 with the proviso that the --NR.sub.1 R.sub.2 and --NR.sub.7 R.sub.8 groups are either in positions 4 and 4' or in positions 5 and 5'. Salts of the diaminoalkane which are physiologically compatible with inorganic and organic acids. Method of coloring keratin fiber.