| abstract |
The invention relates to a method for protecting colour against the washing of artificially-dyed keratin fibres, in particular human keratin fibres, and more particularly hair, characterised in that the method comprises applying, after dying, one or more multi-ketone organic compounds or at least one composition containing one or more multi-ketone organic compounds in a cosmetically acceptable medium onto said fibres. The invention also relates to a method for dying keratin fibres, in particular human keratin fibres, and more particularly hair, said method comprising applying a direct dying composition (A) or an oxidation dying composition (A) onto said fibres in the presence of an oxidiser for a duration that is sufficient for developing the colour, and applying, before or after said application, a composition (B) containing one or more particular multi-ketone organic compounds in a cosmetically acceptable medium. |