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.

The present invention relates to an assembly including: —a styling tool (5), in particular a straightening iron, to be moved along a lock of hair to which water and/or a cosmetic composition has been applied, and—a collecting device (7) coupled to the styling tool so as to collect a runoff generated during the movement of the tool over the hair on account of the presence of water and/or said composition on the hair, the collecting device having a reservoir (9) for picking up the runoff.

The present disclosure relates to, inter alia, a green technology for crosslinking protein molecules for various uses, where the protein molecules can be contained in protein fibers such as, but not limited to, human hair, animal fibers, and mixtures thereof. In one aspect, the present disclosure relates to a crosslinking agent comprising an oxidized sugar having at least two aldehyde groups. In another aspect, the present disclosure relates to a method of crosslinking protein fibers. This method involves providing the aforementioned crosslinking agent and infiltrating a plurality of non-crosslinked protein fibers with the crosslinking agent under conditions effective to cause protein molecules contained in the non-crosslinked protein fibers to become crosslinked, thereby yielding a population of crosslinked protein fibers.

A heated paddle hairbrush includes a novel bristle arrangement which establishes a large surface area for contacting the length of hair during grooming while also creating a serpentinous path through which the length of hair must traverse thereby enhancing the grooming effect on the hair.

A hair styling device comprising: a styling substrate; and a coating disposed onto the styling substrate, the coating including: one or more ceramic minerals, and one or more graphene materials in a sufficient amount so that the coating has a thermal conductivity of about 7 Wattts/(meter.Math.Kelvin).

A hair styling device comprising: a styling substrate; and a coating disposed onto the styling substrate, the coating including: one or more ceramic minerals, and one or more graphene materials in a sufficient amount so that the coating has a thermal conductivity of about 7 Wattts/(meter.Math.Kelvin).

A hairstyling device includes a needle having a shaft with a first end and a second end, a tail terminating with the second end, and an eye formed from the shaft proximate the first end and the tail. The hairstyling is useful for creating protective hairstyles when manipulated by a hairstylist.

The present invention provides a heating apparatus for heating a load. The heating apparatus comprises a heater having a heating element for receiving electrical power and for converting the electrical power into heat to heat a heating surface of the heater. The heating apparatus also comprises a temperature sensor for sensing and outputting a measurement of the temperature of the heating element, a power actuator for providing the electrical power to the heating element of the heater, a power sensor for sensing and outputting a measurement of the power provided to the heating element by the power actuator, and control circuitry for controlling the power actuator to control the power delivered by the power actuator to the heating element. The control circuitry is configured to receive the temperature measurement from the temperature sensor, receive the power measurement from the power sensor, combine the temperature measurement and the power measurement, and control the power actuator in dependence upon the combined temperature measurement and power measurement. This ensures that the temperature of the heating surface is constant throughout a period when the load is applied.

The invention relates to an assembly having a refill and an appliance designed for using the refill, the appliance having an insertion guide along which the refill travels, the refill having an element that serves as a use memory and the accommodating structure having a relief that acts on said element when the refill is fitted on the appliance for the first time, so as to cause it to pass from an inactive configuration to an active configuration, the accommodating structure having a locking member disposed to as to intercept said element when the latter is in the active configuration, while the refill is being fitted in and removed from the accommodating structure, the locking member can be passed over by said element in the direction of removal of the refill and such that the locking member prevents said element from passing in the direction of insertion of the refill.

In various embodiments, a hair treatment device is provided. The hair treatment device can have a device body, at least one sensor arranged in or on the device body for detecting a hair condition parameter, and an electronic circuit device arranged in or on the device body. The electronic circuit device can be coupled to the at least one sensor for receiving the detected hair condition parameter, and the electronic circuit device can be configured, based on the received detected hair condition parameter, to control at least one hair treatment parameter and/or to dose at least one hair treatment agent and/or to provide a hair treatment recommendation.