It is provided herewith a hair treating product comprising an oxidizing component and a tint component; a hair treating composition obtained upon mixing of the oxidizing component and the tint component; the use of the oxidizing component in a hair treating product, for cancelling the alkalinity of a tint component; and an oxidizing component comprising a buffer system. The hair treating product, and the corresponding hair treating composition, is particularly useful for colouring or bleaching hair. It is useful for providing permanent or demi-permanent coloration or bleaching to keratin fibers.

It is provided herewith a hair treating product comprising an oxidizing component and a tint component; a hair treating composition obtained upon mixing of the oxidizing component and the tint component; the use of the oxidizing component in a hair treating product, for cancelling the alkalinity of a tint component; and an oxidizing component comprising a buffer system. The hair treating product, and the corresponding hair treating composition, is particularly useful for colouring or bleaching hair. It is useful for providing permanent or demi-permanent coloration or bleaching to keratin fibers.

The present invention relates to hair coloring and/or bleaching compositions that can be applied at less aggressive pH environment using relatively low oxidizing agent amounts, as well as their kits and methods thereof. The compositions exhibit low odor and substantially reduced hair fiber damage, are compatible with current dyes and dye precursor systems and result in excellent dye deposition with substantially no lift.

The present invention relates to hair coloring and/or bleaching compositions that can be applied at less aggressive pH environment using relatively low oxidizing agent amounts, as well as their kits and methods thereof. The compositions exhibit low odor and substantially reduced hair fiber damage, are compatible with current dyes and dye precursor systems and result in excellent dye deposition with substantially no lift.

The invention relates to a composition for dyeing and/or lightening human keratin fibers, preferably the hair, comprising: one or more anthraquinone cationic direct dyes, at least 25% of one or more fatty substances, one or more chemical oxidizing agents, one or more basifying agents and/or one or more oxidation dye precursors, preferably one or more oxidation dye precursors.

The invention relates to a composition for dyeing and/or lightening human keratin fibers, preferably the hair, comprising: one or more anthraquinone cationic direct dyes, at least 25% of one or more fatty substances, one or more chemical oxidizing agents, one or more basifying agents and/or one or more oxidation dye precursors, preferably one or more oxidation dye precursors.

A dyeing composition for keratin fibers, including one or more alkalizing agents, HC Blue 18, and tetrabromophenol blue. A method for dyeing keratin fibers, including mixing the dyeing composition with a second aqueous composition having a pH in the range of 1 to 6 and optionally including one or more oxidizing agents to yield a ready-to-use composition having a pH in the range of 7 to 12, applying the ready-to-use composition onto the keratin fibers and leaving it for a time period in the range of 1 min to 60 min, and rinsing-off the keratin fibers and optionally shampooing the keratin fibers.

A cosmetic method for modulating pigmentation in a subject includes administering a modulator of angiotensin-converting enzyme 2 (ACE2 modulator) to the subject. The ACE2 modulator can be an inhibitor of angiotensin-converting enzyme 2 (ACE2 inhibitor), in which case, the ACE2 inhibitor can be administered to increase pigmentation in the subject. The ACE2 modulator can also be an activator of angiotensin-converting enzyme 2 (ACE2 activator), in which case the ACE2 activator can be administered to decrease pigmentation in the subject. The treatment of inflammatory skin disease can also be achieved by inhibition of angiotensin-converting enzyme 2.

A cosmetic method for modulating pigmentation in a subject includes administering a modulator of angiotensin-converting enzyme 2 (ACE2 modulator) to the subject. The ACE2 modulator can be an inhibitor of angiotensin-converting enzyme 2 (ACE2 inhibitor), in which case, the ACE2 inhibitor can be administered to increase pigmentation in the subject. The ACE2 modulator can also be an activator of angiotensin-converting enzyme 2 (ACE2 activator), in which case the ACE2 activator can be administered to decrease pigmentation in the subject. The treatment of inflammatory skin disease can also be achieved by inhibition of angiotensin-converting enzyme 2.

A two-part oxidative dyeing composition is described. The two-part composition has an alkaline first part comprising oxidative dye couplers and/or oxidative dye precursors, and a second part comprising hydrogen peroxide, xanthine and/or its derivatives, and a lipophilic compound. The second part is formulated as water-in-oil emulsion and it was unexpectedly found that xanthines stabilize the viscosity of the second part composition allowing for improved dyeing performance.