A hair iron comprising an ion generator that generates ions comprises a slotted nozzle in communication with the ion generator for generating an ion curtain projecting from at least one side of a body of the hair iron, alongside and substantially parallel to a longitudinal edge of the heating element that contacts the hair in use.

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.

The invention relates to a cosmetic composition comprising: (a) at least 2% by weight, relative to the total weight of the composition, of one or more compounds chosen from urea and/or urea derivatives, (b) one or more polymeric thickeners chosen from nonionic, cationic, amphoteric polymeric associative thickeners or anionic polymeric associative thickeners comprising one or more acrylic and/or methacrylic units. The invention also relates to the use of this composition for straightening keratin fibres. Finally the invention relates to a process for straightening keratin fibres.

A hair styling device (S), comprising a luminescent unit (LU) for subjecting hair (H) to optical radiation. Preferably, the luminescent unit (LU) is arranged to translate a first wavelength of light (Li) from a light source (L) into a second wavelength of escaping light (EL) escaping from the luminescent unit (LU). Preferably, light escapes from the luminescent unit (LU) where hair (H) touches the luminescent unit (LU). Preferably, the luminescent unit (LU) is provided with a scattering element. A refractive index of the luminescent unit (LU) may range from 1.3 to 1.7, preferably 1.3 to 1.42. Preferably, the luminescent unit (LU) provides for a plurality of treatment compartments. The hair styling device preferably comprises a handle having a light source (L) for coupling light (Li) into the luminescent unit (LU), and may be provided with a plurality of exchangeable luminescent units (LU) each adapted for a respective hair styling type, which exchangeable luminescent units (LU) are insertable into the handle.

A hair styling device (S), comprising a luminescent unit (LU) for subjecting hair (H) to optical radiation. Preferably, the luminescent unit (LU) is arranged to translate a first wavelength of light (Li) from a light source (L) into a second wavelength of escaping light (EL) escaping from the luminescent unit (LU). Preferably, light escapes from the luminescent unit (LU) where hair (H) touches the luminescent unit (LU). Preferably, the luminescent unit (LU) is provided with a scattering element. A refractive index of the luminescent unit (LU) may range from 1.3 to 1.7, preferably 1.3 to 1.42. Preferably, the luminescent unit (LU) provides for a plurality of treatment compartments. The hair styling device preferably comprises a handle having a light source (L) for coupling light (Li) into the luminescent unit (LU), and may be provided with a plurality of exchangeable luminescent units (LU) each adapted for a respective hair styling type, which exchangeable luminescent units (LU) are insertable into the handle.

A hairstyling flat iron includes a first arm having a first gripping portion and a first styling portion; a second arm having a second gripping portion and a second styling portion; a biasing member coupled with the first gripping portion and the second gripping portion to move the second arm relative to the first arm; a first heat heating plate located on the first styling portion and facing the second arm, the first heating plate having a first heat transmissive plate and a first coating disposed on the first heat transmissive plate, the first coating having ceramic and lava rock incorporated therein; and a second heat heating plate located on the second styling portion and facing the first arm, the second heating plate having a second heat transmissive plate and a second coating disposed on the second heat transmissive plate, the second coating having ceramic and lava rock incorporated therein.

A hair braiding kit includes a base mat with a first hair attachment and a second hair attachment attached at different locations to the mat. The first and second hair attachments have multiple strands configured in 3 columns, each strand attached to the mat midway between a first end and a second end. The strands of the second hair attachment are thinner than the strands of the first attachment. A hair braiding game includes a grid and multiple game pieces. The grid has multiple rows, a row-label column, and at least 3 lane columns, forming playing cells. The number of game pieces corresponds to the number of playing cells. Each game piece has one of several unique identifiers matching the number of lane columns. A pre-pluck, multi-ethnic mannequin head includes groupings of multiple strands affixed to the mannequin head. Each grouping has a unique characteristic thickness and/or texture.

A hair braiding kit includes a base mat with a first hair attachment and a second hair attachment attached at different locations to the mat. The first and second hair attachments have multiple strands configured in 3 columns, each strand attached to the mat midway between a first end and a second end. The strands of the second hair attachment are thinner than the strands of the first attachment. A hair braiding game includes a grid and multiple game pieces. The grid has multiple rows, a row-label column, and at least 3 lane columns, forming playing cells. The number of game pieces corresponds to the number of playing cells. Each game piece has one of several unique identifiers matching the number of lane columns. A pre-pluck, multi-ethnic mannequin head includes groupings of multiple strands affixed to the mannequin head. Each grouping has a unique characteristic thickness and/or texture.

The invention relates to a process for treating keratin fibres, in particular human keratin fibres such as the hair, comprising the application to the keratin fibres of a cosmetic composition comprising a pyridinedicarboxylic acid compound. The process makes it possible to obtain good cosmetic properties in terms of manageability of the hair and sheen, with a long-lasting effect.

A hair styling apparatus is provided including a brush head, a plurality of tines located on the brush head, and a series of movable linearly arranged prongs having an angled orientation with respect to the brush head. A user causing movement of the linearly arranged prongs serves to secure the user' s hair against a subset of the plurality of tines.