Devices and methods for styling hair, and in particular, to devices and methods for styling hair using electrolysis are described herein. A method for styling hair includes arranging a section of hair between a first electrode and a second electrode. The section of hair is contacted with an electrolyte before being arranged between the first and second electrodes, after being arranged between the first and second electrodes, and/or concurrently with being arranged between the first and second electrodes. The method further includes causing the first electrode to have a first negative potential, and causing the second electrode to have a second potential, such that the absolute value of the first negative potential is greater than the absolute value of the second potential, and such that the difference in electrical potential between the first electrode and the second electrode creates an electrolysis zone between the first electrode and the second electrode.

A method of hair dying is provides that includes applying a polymer based hair dye to hair and emitting light on the applied polymer based hair dye for a duration to cure the polymer based hair dye on the hair. In certain aspects a device is provided that emits polymer curative energy for curing an applied polymer based hair dye that includes a housing, at least polymer curative light source disposed in the housing, and a controller operatively connected to the heat source and the at least one polymer curative light source. In certain embodiments a heat source is disposed in the housing that includes a polymer curative light source.

Cosmetic compositions, systems and methods for conferring responsive durable shaping of keratinous fibers employ at least one shape memory polymer that includes a three-armed branched polyethylene glycol (PEG) based polymer that is functionalized with one or more metal-coordination active groups. The shape memory polymer forms a crosslinked network coating on a substrate, for example a substrate selected from keratinous substrates, for example, hair. Hair coated with the shape memory polymer and treated with an oxidizing agent can be shaped, locked into shape, and reprogrammed by modulation of pH. The coated hair retains durable shaping properties through at least one shampoo treatment. The cosmetic compositions, systems and methods provide durable and reprogrammable durable shaping of the keratinous substrate, for example for styling hair.

Cosmetic compositions, systems and methods for conferring responsive durable shaping of keratinous fibers employ at least one shape memory polymer that includes a three-armed branched polyethylene glycol (PEG) based polymer that is functionalized with one or more metal-coordination active groups. The shape memory polymer forms a crosslinked network coating on a substrate, for example a substrate selected from keratinous substrates, for example, hair. Hair coated with the shape memory polymer and treated with an oxidizing agent can be shaped, locked into shape, and reprogrammed by modulation of pH. The coated hair retains durable shaping properties through at least one shampoo treatment. The cosmetic compositions, systems and methods provide durable and reprogrammable durable shaping of the keratinous substrate, for example for styling hair.

In various embodiments, hairstyling devices utilize liquid agents for styling, bleaching, coloring, and/or other hair treatments. Leakage of the liquid agents is prevented by use of a vacuum source that removes excess liquid from the device, sufficient liquid for treatment remaining within the device in one or more absorbent pads.

Devices and methods for styling hair, and in particular, to devices and methods for styling hair using electrolysis are described herein. A method for styling hair includes arranging a section of hair between a first electrode and a second electrode. The section of hair is contacted with an electrolyte before being arranged between the first and second electrodes, after being arranged between the first and second electrodes, and/or concurrently with being arranged between the first and second electrodes. The method further includes causing the first electrode to have a first negative potential, and causing the second electrode to have a second potential, such that the absolute value of the first negative potential is greater than the absolute value of the second potential, and such that the difference in electrical potential between the first electrode and the second electrode creates an electrolysis zone between the first electrode and the second electrode.

Devices and methods for styling hair, and in particular, to devices and methods for styling hair using electrolysis are described herein. A method for styling hair includes arranging a section of hair between a first electrode and a second electrode. The section of hair is contacted with an electrolyte before being arranged between the first and second electrodes, after being arranged between the first and second electrodes, and/or concurrently with being arranged between the first and second electrodes. The method further includes causing the first electrode to have a first negative potential, and causing the second electrode to have a second potential, such that the absolute value of the first negative potential is greater than the absolute value of the second potential, and such that the difference in electrical potential between the first electrode and the second electrode creates an electrolysis zone between the first electrode and the second electrode.

Oxidation dyeing process using a substrate bearing at least one oxidation dye, several preservatives and an oxidizing aqueous composition The present invention relates to a process for the oxidation dyeing of keratin fibres, in particular human keratin fibres such as the hair, comprising a step of application, to said keratin fibres, i) of a substrate comprising on its surface one or more oxidation dyes, one or more thiolated reducing agents and one or more organic reducing agents of reductone type, and a step of application, to said keratin fibres, ii) of an oxidizing aqueous composition comprising one or more oxidizing agents. The present invention also relates to a process for preparing said substrate. The invention also relates to an element in sheet form, pretreated by a composition comprising one or more oxidation dyes, one or more thiolated reducing agents, and one or more organic reducing agents of reductone type.

A method for permanently changing the shape of keratinic fibres and a kit-of-parts comprising the agents (a), (b) and (c) packaged separately. The method comprises applying a permanent waving agent (a) to the keratinic fibres, leaving agent (a) to take effect for a period of from 2-60 minutes, rinsing out the agent (a) from the keratinic fibres, applying agent (b) to the keratinic fibres, leaving agent (b) to take effect for a period of from 2-60 minutes, rinsing out agent (b) from the keratinic fibres, applying agent (c) to the keratinic fibres, leaving agent (c) to take effect for a period of from 2-60 minutes, and rinsing out agent (c) from the keratinic fibres. The permanent waving agent (a) includes one or more keratin-reducing compounds, the cosmetic agent (b) includes one or more aliphatic C.sub.2-C.sub.8 dicarboxylic acids and/or physiologically acceptable salts thereof, and the fixing agent (c) includes hydrogen peroxide.

A method for permanently changing the shape of keratinic fibres and a kit-of-parts comprising the agents (a), (b) and (c) packaged separately. The method comprises applying a permanent waving agent (a) to the keratinic fibres, leaving agent (a) to take effect for a period of from 2-60 minutes, rinsing out the agent (a) from the keratinic fibres, applying agent (b) to the keratinic fibres, leaving agent (b) to take effect for a period of from 2-60 minutes, rinsing out agent (b) from the keratinic fibres, applying agent (c) to the keratinic fibres, leaving agent (c) to take effect for a period of from 2-60 minutes, and rinsing out agent (c) from the keratinic fibres. The permanent waving agent (a) includes one or more keratin-reducing compounds, the cosmetic agent (b) includes one or more aliphatic C.sub.2-C.sub.8 dicarboxylic acids and/or physiologically acceptable salts thereof, and the fixing agent (c) includes hydrogen peroxide.