Fecha de publicación: 05/01/2023 Fuente: WIPO Rice The present invention relates to a cosmetic composition for treating keratin fibres, notably human keratin fibres such as the hair, comprising 1,3-propanediol, at least one fatty substance other than fatty acids in a content as defined below, one or more oxidation dyes. The present invention also relates to a process for dyeing keratin fibres, such as the hair, in which the composition as described previously, and comprising at least one oxidation dye, is applied to said fibres. The present invention also relates to the use of the composition according to the invention for dyeing keratin fibres such as the hair.