Method for straightening keratinous fibers using heating means and malic acid
AssigneeL'oreal
InventorsGérard MALLE, Philippe BARBARAT, Isabelle PASINI
Life of this patent
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Abstract
The invention concerns a method for straightening keratinous fibers including: (i) a step of applying on the keratinous fibers a hair straightening composition containing at least one alpha-hydroxy and/or keto acid derivative, the pH of said composition being not more than 9 (ii) a step of increasing the temperature of the keratinous fibers, using heating means, to a temperature ranging between 110 and 250° C.
Claims14
1-14. (canceled)
A process for relaxing human hair fibers, comprising:
- applying to the hair fibers a hair relaxing composition comprising at least one α-hydroxy acid derivative chosen from malic acid, stereoisomers thereof, organic or mineral salts thereof, and solvates thereof, wherein the pH of the composition is less than or equal to 9, and
- heating the hair fibers to a temperature ranging up to 250° C.
A kit comprising at least:
- a heating apparatus, and
- at least one hair relaxing composition comprising at least one α-hydroxy acid derivative chosen from malic acid, stereoisomers thereof, organic or mineral salts thereof, and solvates thereof, wherein the pH of the at least one composition is less than or equal to 9.
A kit according to claim 26, wherein the heating apparatus is configure to provide a temperature ranging from 110° C. to 250° C.
A kit according to claim 27, wherein the pH of the at least one composition is less than or equal to 7.
Dependencies are inferred from the claim text.