Conopco, Inc.

Claire Louise Richards

Andrew Malcolm Murray

Neil Scott Shaw

Geraldine Bridget Griffith

Anne-Sophie Piggott

Sandra Anne Fawcett

Sophia Paraskevi Clare Moghadam (nee Papapavlou)

The invention provides a packaged composition for the oxidative coloration of hair which is formulated in two parts, the composition comprising: (i) an aqueous hair colorant part comprising one or more oxidative dye precursors, and less than 1% oleic acid by weight based on total weight of part (i); (ii) an aqueous colour developer part comprising one or more oxidising agents, at least 5% stearic acid by weight based on total weight of part (ii); and less than 1% oleic acid by weight based on total weight of part (ii); in which parts (i) and (ii) are adapted to be mixed together before application to the hair. The compositions provide an improved level of hair damage protection during the colouring process without compromising on colour delivery.

Oxidative coloration of hair with reduced hair damage

The invention provides a method of assessing the potential color protecting effect in vivo of a test formulation such as rinse-off hair treatment formulation, the method comprising the steps of: providing a sample of the test formulation to be assessed; providing a model substrate in the form of a hair switch which has been artificially colored; applying the test formulation to the hair switch; subsequently rinsing the test formulation from the hair switch; collecting the rinse liquor and analysing it for the presence of eluted color; characterized in that the artificial color used to color the hair switch is a permanent hair colorant with a shade level 1 or 2 according to the International Color Chart (I.C.C.). The method provides improved sensitivity and differentiation, and enables the tester to compare different technologies in terms of effectiveness.

Method of assessing hair colour changes

A method for assessing the state of hair by releasably engaging a first end of hair fibers with a holder which so that an opposite, second end of said hair fibers hangs free and applying sufficient force to the second end of the hair fibers such that the hair fibers at the first end are pulled from the holder.

Method for assessing hair fibers

Hair conditioner comprising silicone and a conditioning gel phase, said phase obtainable by heating a fatty alcohol and an oil until they are molten, separately heating a cationic surfactant in water until it is dissolved/suspended, then adding the molten fatty alcohol and oil mix to the cationic surfactant before adding any remaining ingredients.

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Wrexham, United Kingdom

Claire Louise Richards