A process for permanent waving of hair by a reaction in which cystine bridges are reduced to cysteine, the hair reshaped, and the reaction reversed. The improvement in the process resides in the step of reducing or reversing the reaction by applying to hair a composition which includes an emulsion polymerized mercapto functional silicone. Permanent hair waving with waving lotions, neutralizing solutions, or both, containing such emulsion polymerized mercapto functional silicones, provide waved hair with improved conditioning benefits.
A method is provided for making aqueous emulsions of functionalized organopolysiloxane particles having a volume average particle diameter in a range between about 300 nanometers to about 1 micron. The aqueous silicone emulsions can be employed as part of a coating composition, for example, a shampoo, to impart improved surface characteristics.
This invention provides compositions and methods for reducing odors associated with permanent hair waving by contacting the hair with a disulfide before, during, or after application of a sulfur-based reducing agent.
