Agents for treating keratin fibers

A method of treating human hair, comprising the steps of (a) combining and mixing an aqueous preparation A and an envelope containing a preparation B that comprises a constituent that is not storage-stable in the presence of preparation A, the constituent in B comprising one or more perfume oils, vitamins, provitamins, or derivatives of vitamins or provitamins, where the envelope containing the preparation B comprises a material that permits the preparation A and B to mix at 38° C. within 5 minutes after the envelope containing preparation B is added to preparation A, wherein the preparation B is free from incompatible agents selected from the group consisting of oxidation colorants, bleaching agents, pathenol, pathenol derivatives or mixture thereof (b) applying the mixture to the hair;

• and (c) optionally musing the mixture from the hair after a contact time of 10 seconds to 45 minutes.

An agent for treating keratin fibers, comprising an aqueous preparation A and a preparation B that comprises a constituent that is not storage-stable in the presence of preparation A, the constituent in B comprising one or more perfume oils, vitamins, provitamins, or derivatives of vitamins or provitamins, the preparation B being contained in and spatially separated from the aqueous preparation A by an envelope of material that permits the preparations A and B to mix at 38° C. within 5 minutes after the envelope containing the preparation B is added to the preparation A, wherein the preparation B is free from incompatible agents selected from the group consisting of oxidation colorants, bleaching agents, pathenol, pathenol derivatives or mixture thereof and wherein the envelope has a wall thickness of from 10 micrometers to 30 micrometers.