The present invention relates to a method of treating keratinaceous fibres, said method comprising contacting said keratinaceous fibres with a buffered aqueous silver solution containing Ag+ and having a buffered pH of 7 to 11.The present method is capable of introducing exceptionally high levels of silver into keratinaceous fibres. In addition, the method offers the advantage that it does not require the use of strongly alkaline conditions and/or chemicals (e.g. peroxide or ammonia) that may cause damage to the keratinaceous fibres.
