Hair treatment compositions and hair after-treatment compositions for protection against damage by chemical treatment and for the repair of already damaged hair comprising as active substances alkylguanidine compounds

摘要

Hair treatment compositions and hair after-treatment compositions are provided for the prevention of damage by chemical treatment compositions and for the repair of already damaged hair, wherein, as active substances, at least one of the compounds of the general formulae (I) and/or (II) are additionally used.