Gentle oxidative hair treatment with oxidizing agent and special starch derivative
AssigneeHenkel AG & Co. KGaA
InventorMatthias Schweinsberg
Life of this patent
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Abstract
The present specification provides for an oxidative hair treatment agent. The agent includes, in a cosmetic carrier, a combination of at least one oxidizing agent and at least one modified starch. The modified starch is modified by propylene oxide, has an average molecular weight between 50 and 2500 kiloDaltons (kDa), and has a propylene oxide content between 0.1 and 20.0 weight percent (wt %) based on the weight of the modified starch.
Claims19
An oxidative hair treatment agent comprising, in a cosmetic carrier, a combination of:
- at least one oxidizing agent;
- and
- at least one modified starch, the modified starch:
- being uncrosslinked;
- being modified by propylene oxide;
- having an average molecular weight between 50 and 2500 kiloDaltons (kDa);
- and
- having a propylene oxide content between 0.1 and 20.0 weight percent (wt%) based on the weight of the modified starch.
A method for providing an oxidative treatment to hair, the method comprising:
- applying at least one oxidative cosmetic agent onto hair, in which the oxidative cosmetic agent comprises, in a cosmetic carrier, at least one oxidizing agent;
- rinsing the oxidative cosmetic agent out of the hair after a contact time;
- in which the method further comprises at least one of:
- (i) immediately before applying the at least one oxidative cosmetic agent onto hair, applying a second cosmetic agent to the hair, and rinsing the second cosmetic agent from the hair, in which the second cosmetic agent comprises, in a cosmetic carrier, at least one modified starch, in which the modified starch:
- is uncrosslinked;
- has an average molecular weight between 50 and 2500 kiloDaltons (kDa);
- and
- has a propylene oxide content between 0.1 and 20.0 weight percent (wt%), based on the weight of the modified starch;
- and
- (ii) adding at least one modified starch into the oxidative cosmetic agent, in which the modified starch:
- is uncrosslinked;
- has an average molecular weight between 50 and 2500 kiloDaltons (kDa);
- and
- has a propylene oxide content between 0.1 and 20.0 weight percent (wt%), based on the weight of the modified starch.
A method for using at least one modified starch to decrease oxidative hair damage in the context of an oxidative hair treatment, the method comprising:
- applying the at least one modified starch to hair, the modified starch:
- being uncrosslinked;
- being modified by propylene oxide;
- having an average molecular weight between 50 and 2500 kiloDaltons (kDa);
- and
- having a propylene oxide content between 0.1 and 20.0 weight percent (wt%), based on the weight of the modified starch;
- and
- rinsing the modified starch from the hair;
- in which the oxidative hair treatment is a composition to be applied to hair that comprises at least one oxidizing agent.
Dependencies are inferred from the claim text.