Composition for dyeing keratinous fibres comprising at least one direct dye with disulphur/thiol function and at least one polymer with thiol function and method using the composition

摘要

Colorant composition (A) comprises, in a cosmetic medium, at least one or more colorant comprising direct dye having disulfide function or protected thiol function; and at least one polymer having thiol function, where the polymer has a molecular weight of higher than 500.