Patent ID: 7118736

Claim:
A method for lanthionizing keratin fibers to achieve a desired relaxation comprising: (a) storing a first composition, (b) storing a second composition separately from said first composition, (c) combining said first composition with said second composition, and (d) applying said composition to said keratin fibers for a sufficient period of time to achieve a desired relaxation, wherein said first composition comprises at least one activating agent chosen from cysteine-based compounds and optionally at least one entity chosen from: (1) at least one compound capable of being converted in situ to at least one soluble base; and (2) at least one hydroxide compound with the proviso that said at least one hydroxide compound is not sodium hydroxide, lithium hydroxide or potassium hydroxide; and wherein said second composition comprises at least one entity chosen from: (1) at least one compound capable of being converted in situ to at least one soluble base; and (2) at least one hydroxide compound with the proviso that said at least one hydroxide compound is not sodium hydroxide, lithium hydroxide or potassium hydroxide, with the proviso that said at least one compound capable of being converted in situ to at least one soluble base and at least one hydroxide compound are present, together or separately, in at least one composition chosen from said first composition and said second composition.