The invention relates to i) a process for treating keratin fibres, in particular human keratin fibres such as the hair, employing a) at least one monosaccharide with amine group(s), b) at least one polysaccharide with amine group(s) then c) a heat treatment; ii) a composition having an acid pH comprising the ingredients a), b) and c) at least one organic or mineral acid a), b) and c) then heat to treat keratin fibres, in particular human keratin fibres such as the hair, and iv) a multi-compartment kit or device comprising a) and b). The invention makes it possible to improve the cosmetic effect of the keratin fibres intrinsically, in order to prevent or reduce the breakage of natural keratin fibres and/or to repair damaged keratin fibres, while retaining or even improving the manageability, anti-frizz properties and/or persistence of the styling of said fibres, in particular human fibres such as the hair, when a heating step is carried out.

The present invention relates to a composition, preferably a cosmetic composition, and more preferably a skin cosmetic composition, comprising: (a) at least one particle, comprising at least one cationic polymer and at least one anionic polymer, at least one cationic polymer and at least one amphoteric polymer, at least one anionic polymer and at least one amphoteric polymer, or at least one amphoteric polymer, and at least one non-polymeric acid having two or more pKa values or salt(s) thereof or at least one non-polymeric base having two or more pKb values or salt(s) thereof; (b) at least one oil; and (c) water. The composition according to the present invention is stable, and can have a variety of cosmetic functions. For example, the composition according to the present invention can prepare a film which can have cosmetic effects such as moisturizing due to the oil(s).

The present invention relates to an adhesive patch. The adhesive patch includes a plurality of reliefs, each relief having a flat top face, and each micro channel groove defined between adjacent reliefs of the plurality of reliefs, wherein the plurality of reliefs and the micro channel groove are respectively formed on and defined the adhesive patch, and wherein a hydrogel layer is disposed on at least a portion of a bottom face of the micro channel groove and is contained in the groove. Therefore, the adhesive patch is well-adhered to a dry or wet adhered face.

A production method of microencapsulated probiotics with chitosan-alginate polymers, the microcapsules loaded with probiotics obtained by this method and their use in food, agriculture and cosmetics. The microcapsules do not make alterations in the color and appearance of the product in which they are applied and have antifungal and anti-mycotoxin features.

The present invention relates to a composition, preferably a cosmetic composition, and more preferably a skin cosmetic composition, comprising: (a) at least one particle, comprising at least one cationic polymer, at least one anionic polymer and at least one non-polymeric base having two or more pKb values or salt(s) thereof; and (b) at least one physiologically acceptable volatile medium. The composition according to the present invention is stable, and can have a variety of cosmetic functions.

For the cosmetic field, omniphobic cosmetic pigments under the form of a core shell structure: the core is or includes of a metal oxide on which is adsorbed poly(-(1.fwdarw.4)-D-glucosamine) chains; the chains being acetylated, or partially or totally deacetylated. Also, the process for manufacturing the omniphobic cosmetic pigments, including: (i) preparing an acidic aqueous solution including metal oxide particles and a poly (-(1.fwdarw.4)-D-glucosamine), the poly (-(1.fwdarw.4)-D-glucosamine) being acetylated, or partially or totally deacetylated; and (ii) increasing the pH until 12, of the solution obtained at step (i) in order to obtain the adsorption of said poly (-(1.fwdarw.4)-D-glucosamine on the metal oxide particles and the precipitation of the resulting metal oxide particles coated with the poly (-(1.fwdarw.4)-D-glucosamine.

A dentifrice, such as toothpaste, containing chitosan or pharmaceutically acceptable acid addition salt thereof with fluoride ions, for use against erosive tooth demineralization, and kits containing chitosan or pharmaceutically acceptable acid addition salt thereof with fluoride ions, wherein one of the two active agents is comprised in a dentifrice, are described. The dentifrice in the form of toothpaste may furthermore comprise dissolved tin, in particular stannous ions. Toothpastes containing chitosan or pharmaceutically acceptable acid addition salt thereof with fluoride ions are tested in the treatment or prevention of erosive tooth demineralisation caused by citric acid.

Because of the formation of disulfide bridges with mucus glycoproteins, the mucoadhesive properties of polymeric compounds can be significantly improved by the covalent attachment of thiol substructures to them. By the transformation of free thiol groups on such polymers in disulfides with mercaptonicotinamides or mercaptopyridoxins these thiol groups become comparatively more reactive resulting in significantly improved mucoadhesive properties. Furthermore, polymers exhibiting disulfide partial structures with mercaptonicotinamides or mercaptopyridoxins do not need to be protected against oxidation. In addition, they show comparatively higher permeation enhancing properties.

The group of inventions relates to the field of aesthetic, plastic and reconstructive cosmetology/medicine, and more particularly to meso threads used for remedying aesthetic and age-related changes to the skin, and to methods for producing such threads. Proposed is a multicomponent meso thread consisting of a core and a shell. The core is realized in the form of a fibroin thread, and the shell contains hyaluronic acid or a salt thereof or a polyelectrolyte complex of hyaluronic acid or a salt thereof and chitosan or a salt thereof. Also proposed are a variant of the thread having a plastifying agent in the shell, and methods for producing the proposed meso threads.

Provided are methods, compositions and kits employing cellulose nanocrystals for hair-straightening treatment. Also provided are methods, compositions and kits employing a resilin, for hair-straightening treatment and/or for maintenance of straightened hair following a hair-straightening treatment.