Provided herein are color protectant compositions for dyed human hair, and methods for determining the same.

The present invention relates to a pretreatment composition of a process for dyeing or bleaching keratin fibers, comprising at least 5% by weight of one or more particular amino acids and at least 5% by weight of one or more monoalcohols, and alsoto a dyeing or bleaching process using the pretreatment composition.

The subject of the present disclosure is a process for dyeing keratinous material, in particular human hair. In one example, the process includes applying an agent (a) to the keratinous material. The agent (a) contains at least one organic silicon compound from the group of silanes with one, two or three silicon atoms. The agent (a) further contains at least one silicone polymer. An agent (b) is applied to the keratinous material. The agent (b) contains at least one pigment.

Cosmetic compositions, systems and methods for conferring responsive durable shaping of keratinous fibers employ at least one shape memory polymer that includes a four-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.

The present technology includes a set of topical compositions used in treating wounds or scars in accordance with the methods and protocols described herein. The set of topical compositions can include (i) a cleansing composition comprising polydimethylsiloxane (silicone) and Rosmarinus officinalis (rosemary) flower extract; (ii) a first treatment composition comprising Aloe barbadensis (aloe) leaf juice, Macadamia temifolia (macadamia) seed oil, and panthenol (vitamin B5); (iii) a second treatment composition comprising Aloe barbadensis (aloe) leaf extract, sodium hyaluronate, and allantoin; (iv) a third treatment composition comprising snail mucin extract; (v) a fourth treatment composition comprising tocopherol; and (v) a fifth treatment composition comprising retinol.

The invention relates to a method for the cosmetic treatment of keratin fibres, in particular human keratin fibres, such as the hair, comprising a stage of application of a composition comprising at least one metal compound, the metal of which belongs to the group of the rare earth metals, and then a stage of application of a shampoo comprising at least one surfactant.

The subject of the present disclosure is a process for dyeing keratinous material, in particular human hair, comprising the following steps: Application of a pretreatment agent (V) to the keratinous material, the pretreatment agent being in a water-comprising carrier (V-1) comprises at least one anionic surfactant, and Application of a colorant (F) to the keratinous material, wherein the colorant is (F-1) at least one amino-functionalized silicone polymer and (F-2) comprises at least one pigment.

A second object of the present disclosure is a multi-component packaging unit which comprises the two colorants (V) and (F) in two separately packaged containers.

A process for decolorizing keratinous material which has been colored by the application of at least one pigment is disclosed. The process comprises applying to a dyed keratin material a decolorizing agent comprising at least one amphoteric and/or zwitterionic surfactant and a pH of from about 1.0 to about 4.3. The process further comprises rinsing the decolorizing agent from the keratin material after a contact time. A method for dyeing and later decolorizing human hair is also disclosed, and comprises applying a colorant to the hair to give a dyed hair, the colorant comprising at least one amino-functionalized silicone polymer and at least one pigment; applying to the dyed hair the decolorizing agent to give a decolorized hair; and rinsing the decolorizing agent from the decolorized hair. A multi-component packaging unit comprising a first container comprising the colorant and a second container comprising the decolorizing agent is also disclosed.

A method for strengthening and repairing keratin fibres including providing a first—and a second crosslinking composition, wherein the first—crosslinking composition comprises an at least bi-functional Brønsted-base and the second—crosslinking composition comprises—an at least bi-functional organic acid, and a cosmetically acceptable carrier; applying the first—as well as the second—crosslinking composition to keratin fibres; and optionally mixing the first—crosslinking composition into a commercially available hair coloring or hair bleaching composition.

A process and a kit-of-parts for dyeing keratinous material are provided. In an exemplary embodiment, a process for dyeing keratinous material includes applying an agent (a) to the keratinous material, wherein the agent (a) comprises at least one organic silicon compound. The process further includes applying an agent (b) to the keratinous material, wherein the agent (b) comprises (b1) at least one colorant compound comprising at least one pigment based on a lamellar substrate platelet, and (b2) at least one film-forming polymer.