The representative examples are intended to help illustrate the invention, and are not intended to, nor should they be construed to, limit the scope of the invention. Indeed, various modifications of the invention and many further embodiments thereof, in addition to those shown and described herein, will become apparent to those skilled in the art from the full contents of this document, including the examples and the references to the scientific and patent literature included herein. The examples contain important additional information, exemplification and guidance that can be adapted to the practice of this invention in its various embodiments and equivalents thereof.

The present invention relates to processes for neutralizing relaxed hair. Still further, the present invention relates to neutralizer compositions for use on relaxed hair. Still further, the present invention relates to a system for neutralizing relaxed hair. Yet further, the invention relates to relaxed hair neutralized by the compositions and methods disclosed herein. The present invention also relates to compositions and methods to simultaneously neutralize and color relaxed hair.

Devices are provided for applying an indicator composition and, optionally, a disinfectant composition to an article being dispensed through the device. The device includes a housing at least partially surrounding an interior volume and having a wall defining a dispensing aperture extending through the wall, a reservoir having at least one chamber sized to contain an indicator composition, and an application mechanism positioned within the housing relative to the dispensing aperture. The reservoir optionally has a second chamber sized to contain a disinfectant composition. The application mechanism is configured to be in fluid communication with the reservoir to apply an amount of the indicator composition and the optional disinfectant composition from the reservoir to an article dispensed through the dispensing aperture. Related compositions, articles, and methods are provided.

A solid temporal colorimetric hydrogel cosmetic composition includes 15 to 99.90 wt % of the water phase part and 0.10 to 85 wt % of the oil phase part, having a refractive index difference of 0 to 0.02 therebetween, and having a color change according to variations in a refractive index difference between the water phase part and the oil phase difference when applied to the skin. The cosmetic composition not only has flexibility through irradiation of gamma-rays, but also enables an optimal application time of the cosmetic composition to be visually confirmed through a color change from transparency to ivory white due to a change in the refractive index difference caused by absorbency and volatilization of water when applying the composition to the skin. The cosmetic composition is capable of improving quality of a product although a preservative irritating to the skin is not added.

Disclosed is a self-invertible inverse latex having an aqueous phase, including: a) a cross-linked anionic polyelectrolyte (P) including: - at least one monomer unit derived from 2-methyl-2-[(1-oxo-2-propenyl)amino] 1-propanesulfonic acid in the form of a free or partially or totally salified acid; - at least one monomer unit derived from at least one monomer selected from the elements of the group consisting of acrylamide, N,N-dimethylacrylamide, methacrylamide, N-isopropylacrylamide, N-tert-butylacrylamide; and - at least one monomer unit derived from a polyethylenic cross-linking monomer (AR); b) ethylenediamine disuccinic acid in the form of trisodium salt.

The present invention relates to a process for treating keratin fibers, especially human keratin fibers such as the hair, using i) at least one triarylmethane or sulfonophthalein direct dye of formula (I) or (I′) as defined below, ii) an alkaline revealer, iii) an eraser at acidic pH. A subject of the invention is also a composition comprising at least one triarylmethane direct dye of formula (I) or (I′) as defined below and at least one thickener and/or at least one hydrotropic solvent, and a multi-compartment kit comprising i), ii) and iii) in three separate compartments. The present invention makes it possible in particular to obtain keratin fiber coloring with intense and persistent tints which can be modified, erased and reformed several times without any loss of color.

An antimicrobial composition suitable for use on human skin and containing a UV-detectable compound that will allow for detection of the application of the composition, using a UV-light source. A kit comprising such an antimicrobial composition and a UV-light source.

The present disclosure relates to a metal material extraction sheet. According to an aspect of the disclosure, the metal material extraction sheet having a predetermined area may be provided, wherein dopamine whose color is changed when reacting with a metal material is provided on at least a part of the outer surface of the metal material extraction sheet.

A hot wax composition useful in removing hair from skin contains an effective amount of a thermally activated pigment which causes the composition to change color when it is heated sufficiently for use in hair removal and then change color again when the composition has cooled enough to be removed.

The present invention relates to a process for treating keratin fibers, especially human keratin fibers such as the hair, using i) at least one triarylmethane or sulfonophthalein direct dye of formula (I) or (I) as defined below, ii) an alkaline revealer, iii) an eraser at acidic pH. A subject of the invention is also a composition comprising at least one triarylmethane direct dye of formula (I) or (I) as defined below and at least one thickener and/or at least one hydrotropic solvent, and a multi-compartment kit comprising i), ii) and iii) in three separate compartments. The present invention makes it possible in particular to obtain keratin fiber coloring with intense and persistent tints which can be modified, erased and reformed several times without any loss of color.