| http://www.w3.org/ns/prov#value | - The hair treating composition in each case includes in addition to water and the water-soluble polymer (as defined below) a coloring agent, i.e., a hair dye or hair dye precursor; or a hair waving or straightening agent such as a reducing agent capable of breaking the disulfide linkages in hair keratin; or a peroxide such as hydrogen peroxide in the case of hair bleaching compositions or neutraliz
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