L'oreal

Charles Shaw

Nghi Van Nguyen

Jim Singer

XianZhi Zhou

Jennifer Haghpanah

Andrea Elsen

The present disclosure relates to methods for treating hair with lactones. The lactones form a covalent thio-ester bond with free thiols groups on chemically treated hair, and thereby impart a 'repairing' or 'conditioning' effect to the hair, for example, by making the hair more hydrophobic. Typically, after hair has been treated with a composition comprising one or more reducing agents that reduce disulfide bonds of hair to free thiols, a composition comprising one or more lactones is applied to the hair and the one or more lactones react with the free thiols to form a covalent thio-ester bond. Treatment with the lactones prevents reversion of the repaired bonds to their free thiol state after a single application.

Methods for treating hair

Disclosed are compositions, systems and methods for treating keratinous fibers such as hair. The compositions and systems comprise an oxazoline functionalized polymer and a carboxyl group-containing polymer. The compositions and methods are employed to improve the quality of the keratinous fibers.

Cosmetic compositions containing oxazoline functionalized polymers and carboxyl group-containing polymers

Disclosed are compositions, systems and methods for treating keratinous fibers such as hair. The compositions and systems comprise an oxazoline functionalized polymer and an amino silicone compound. The compositions and methods are employed to improve the quality of the keratinous fibers.

Cosmetic compositions containing oxazoline functionalized polymers and amino silicone compounds

Disclosed are compositions, systems and methods for treating keratinous fibers such as hair. The compositions and systems comprise an oxazoline functionalized polymer and a compound having at least one nucleophilic site capable of reacting with the at least one oxazoline functionalized compound and chosen from hydroxyl group-containing compounds, thiol group-containing compounds, and a mixture thereof. The compositions and methods are employed to improve the quality of the keratinous fibers.

Cosmetic compositions containing oxazoline functionalized polymers and compound having at least one nucleophilic site capable of reacting with the at least one oxazoline functionalized compounds

Disclosed are compositions, systems and methods for treating keratinous fibers such as hair. The compositions and systems comprise an oxazoline functionalized polymer and a polyamine compound. The compositions and methods are employed to improve the quality of the keratinous fibers.

Growing community of inventors

Seattle, WA, United States of America

Charles Shaw