A conditioning hair lightener
system, compositions, method, and kit therefor, is disclosed which ameliorates the deleterious effects of chemical oxidative hair lightening on the strength and subjective properties of hair. The conditioning hair lightener
system comprises a conditioning hair lightener
emulsion having a pH of at least about 8 prepared from at least two separate components, (A) and (B). Component (A) preferably is a substantially
anhydrous, substantially free-flowing composition comprising an effective hair conditioning amount of a water-dispersible, self-emulsifying,
fatty acid-derived conditioner, an effective hair lightening amount of a peroxy salt compound, optionally an effective hair protective amount of hair protectant, deswelling agent, and optionally, a water-soluble cosmetic
adjuvant. Component (B) preferably is an
aqueous medium containing
hydrogen peroxide or
hydrogen peroxide source. Components (A) and (B) are maintained separate until substantially immediately before use, and are mixed together to provide a conditioning hair lightener
emulsion.