A transparent liquid composition is provided which has excellent handling properties when used in cosmetic production without causing increases in viscosity or precipitation of insoluble matter during storage, and which imparts hydrophobicity to damaged hair when added to a cosmetic, and is smooth, moist and soft so feels good during use; a cosmetic containing this transparent liquid composition is also provided. This transparent liquid composition is characterized by containing (A) a compound selected from a group consisting of peptides, amino acids and derivatives thereof, (B) fatty acid amidoamines, (C) gluconic acid and/or gluconolactones and (D) a polyhydric alcohol, wherein the mass ratio (C)/(B) of component (C) to component (B) is 0.5-2.0.

The present invention is directed at organic ammonium salts comprising

an organic ammonium-group-comprising cation which does not contain an estolide moiety and a carboxylate anion (COO—) group-comprising anion selected from the group consisting of anions containing at least one estolide moiety or carboxylate anions containing at least one internal ester group.

The invention is also directed at a process for the production of such organic ammonium salts, the use of such organic ammonium salts in cosmetic formulations for skin and hair care, the use of such organic ammonium salts for the treatment of fibers, the use of the organic ammonium salts for the treatment of hair, at compositions containing such organic ammonium salts, the use of the products of the process for the production of organic ammonium salts in cosmetic formulations for skin care and hair conditioner and hair shampoo, the use of said products for the treatment of fibers, and compositions containing said products for the treatment of hair.

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.

The invention relates to a non-therapeutic cosmetic use of fructans of Agave tequilana, containing natural inulins for protecting capillary fibre by improving the hydrophobicity of the capillary fibre. The invention also relates to a non-therapeutic cosmetic method comprising the therapeutic application of fructans of Agave tequilana containing inulins having a degree of polymerisation greater than 10, in order to protect the capillary fibre by improving the hydrophobicity of the capillary fibre, said application being optionally followed by rinsing.

A method of protecting the internal protein of hair from damage by ultraviolet light, comprising the step of applying, to the hair, a hair treatment composition comprising a lactone, a disaccharide, an inorganic salt and an organic acid or salt thereof, having a pH in the range of from 3 to 6.5 prior to the application of an ultraviolet light to the hair, and a use of such a hair treatment composition, in the treatment of hair, to protect hair from damage by ultraviolet light.

The present disclosure provides a composition for hair and fiber treatment which supplies a transition metal as a catalyst to a thiol residue formed when hair or fiber is damaged in a process of chemical or physical care, and rapidly and abundantly binds an olefin-based unsaturated hydrocarbon through a thiol-ene reaction, thereby continuously providing smoothness to the hair and fiber.

Disclosed herein is a scalp protection composition that includes a carboxylate compound, an emulsifier, and water. The carboxylate compound is represented by formula (I):

##STR00001##

In formula (I), R.sup.1 represents a C.sub.4-C.sub.8 alkyl group, and R.sup.2 represents a C.sub.10-C.sub.26 alkyl group.

Keratin protein cosmetic compositions are provided that include at least one keratin protein derived from human hair and a base cosmetic solution. Methods of treatment are also provided.

The disclosure describes silk hair care compositions and methods of using and making thereof.

The present invention relates to a composition comprising a triglyceride-containing oil, jojoba oil, a free fatty acid or a salt thereof, and squalene. The present invention also relates to the use of such a composition as a skin conditioning agent.