Methods for relaxing and re-waving hair comprising at least one reducing agent and at least one hydroxide compound
AssigneeL'oreal
InventorsDavid W. Cannell, Nghi Van Nguyen
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Abstract
Methods and kits for lanthionizing keratin fibers to achieve relaxation of the keratin fibers, and methods and kits for re-waving keratin fibers comprising applying to keratin fibers a pretreatment composition comprising at least one reducing agent chosen from thiols, sulfites, and derivatives thereof, applying to the pretreated keratin fibers a composition comprising at least one hydroxide compound, and heating the keratin fibers.
Claims35
A method for lanthionizing keratin fibers to achieve relaxation of said keratin fibers comprising:
- (i) applying a pretreatment composition to said keratin fibers, wherein said pretreatment composition comprises at least one reducing agent chosen from thioglycolates for a sufficient period of time to reduce at least one keratin bond in said keratin fibers;
- (ii) rinsing said keratin fibers;
- (iii) generating hydroxide ions in at least one solvent, wherein said step of generating comprises including at least one hydroxide compound in said at least one solvent;
- (iv) applying a composition comprising said generated hydroxide ions to said keratin fibers for a sufficient period of time to lanthionize at least one of said keratin fibers;
- (v) heating said keratin fibers;
- and
- (vi) terminating said lanthionization when said keratin fibers are relaxed.
A method for re-waving keratin fibers comprising:
- (i) applying a pretreatment composition to said keratin fibers comprising at least one reducing agent chosen from thioglycolates to keratin fibers for a sufficient period of time to reduce at least one keratin bond in said keratin fibers;
- (ii) rinsing said keratin fibers;
- (iii) generating hydroxide ions in at least one solvent, wherein said step of generating comprises including at least one hydroxide compound in said at least one solvent;
- (iv) applying a composition comprising said generated hydroxide ions to said keratin fibers for a sufficient period of time to lanthionize at least one of said keratin fibers;
- (v) heating said keratin fibers;
- (vi) terminating said lanthionization, and
- (vii) applying a permanent waving composition to said keratin fibers for a sufficient period of time to permanently wave at least one of said keratin fibers.
A multicompartment kit for re-waving keratin fibers comprising:
- (a) a first compartment comprising a first composition,
- (b) a second compartment comprising a second composition, and
- (c) a third compartment comprising a third composition,
- wherein said first composition comprises at least one hydroxide compound;
- wherein said second composition comprises at least one reducing agent chosen from thioglycolates, and
- wherein said third composition is a permanent waving composition.
Dependencies are inferred from the claim text.