A powder cosmetic containing: an inorganic powder; and a polyaspartic acid alkali metal salt that coats a part or all of a surface of the inorganic powder, in which a weight average molecular weight x of the polyaspartic acid alkali metal salt is from 1,000 to 150,000, and the weight average molecular weight x of the polyaspartic acid alkali metal salt and a mass ratio y of the polyaspartic acid alkali metal salt to a total amount of the inorganic powder and the polyaspartic acid alkali metal salt satisfy the following relationships: y≤1.6×10.sup.7x.sup.−2.275 and y≥1.3×10.sup.5x.sup.−2.232.

A method for producing a film of the present invention includes an electrostatic spraying step of electrostatically spraying a liquid composition directly on the surface of skin to form a film on the skin by using an electrostatic spray device. The electrostatic spray device includes a container capable of storing the liquid composition, a nozzle configured to eject the liquid composition, and a power supply configured to apply a voltage to the nozzle. The liquid composition contains component (a): one or two or more volatile substances selected from alcohols and ketones, component (b): a water-insoluble polymer having film formability, and component (c): 0.2% by mass or more and 25% by mass or less of water.

The present invention is relative to the use of a composition comprising at least one mineral filler having properties of absorption and/or emission in the far infrared region ranging from wavelength of 2 micrometers to 20 micrometers dispersed in a marine biodegradable polymeric composition for improving marine biodegradability of said marine biodegradable polymeric composition.

The present invention is relative to the use of a composition comprising at least one mineral filler having properties of absorption and/or emission in the far infrared region ranging from wavelength of 2 micrometers to 20 micrometers dispersed in a marine biodegradable polymeric composition for improving marine biodegradability of said marine biodegradable polymeric composition.

A gelled composition comprising a short-chain fatty acid salt. The composition, in particular a cosmetic composition, in particular for caring for keratin materials, in particular the skin, including between 0.5% and 4% by weight of short-chain fatty acid salt and at least 90% by weight of an aqueous phase, with respect to the total weight of the composition, gelled by a hydrophilic gelling agent chosen from (i) at least one polymer chosen from polyacrylamides and 2-acrylamido-2-methylpropanesulfonic acid polymers and copolymers. (ii) at least one polysaccharide produced by microorganisms or isolated from algae, (iii) at least cellulose or one of its derivatives, (iv) at least one carboxyvinyl polymer or (v) mixtures thereof. A cosmetic process for caring for keratin materials, in particular the skin, including at least one stage of application to said keratin materials of the composition.

A gelled composition comprising a short-chain fatty acid salt. The composition, in particular a cosmetic composition, in particular for caring for keratin materials, in particular the skin, including between 0.5% and 4% by weight of short-chain fatty acid salt and at least 90% by weight of an aqueous phase, with respect to the total weight of the composition, gelled by a hydrophilic gelling agent chosen from (i) at least one polymer chosen from polyacrylamides and 2-acrylamido-2-methylpropanesulfonic acid polymers and copolymers. (ii) at least one polysaccharide produced by microorganisms or isolated from algae, (iii) at least cellulose or one of its derivatives, (iv) at least one carboxyvinyl polymer or (v) mixtures thereof. A cosmetic process for caring for keratin materials, in particular the skin, including at least one stage of application to said keratin materials of the composition.

A hyaluronic acid facial mask, a preparation method therefor and a use method therefor is provided. The facial mask includes a substrate layer, a hyaluronic acid layer and a protective paper layer sequentially arranged. The hyaluronic acid layer is made of hyaluronic acid nanofibers. The hyaluronic acid nanofibers are formed by spinning a hyaluronic acid composite using an electrospinning method. The hyaluronic acid composite includes a dispersed phase and a solvent phase. The dispersed phase includes, in terms of mass percentage content, 70-95% of hyaluronic acid. The solvent phase includes water. The preparation method includes: spinning the hyaluronic acid composite on the substrate layer using an electrospinning method to form a hyaluronic acid layer, and then attaching the protective paper layer on the hyaluronic acid layer.

A hyaluronic acid facial mask, a preparation method therefor and a use method therefor is provided. The facial mask includes a substrate layer, a hyaluronic acid layer and a protective paper layer sequentially arranged. The hyaluronic acid layer is made of hyaluronic acid nanofibers. The hyaluronic acid nanofibers are formed by spinning a hyaluronic acid composite using an electrospinning method. The hyaluronic acid composite includes a dispersed phase and a solvent phase. The dispersed phase includes, in terms of mass percentage content, 70-95% of hyaluronic acid. The solvent phase includes water. The preparation method includes: spinning the hyaluronic acid composite on the substrate layer using an electrospinning method to form a hyaluronic acid layer, and then attaching the protective paper layer on the hyaluronic acid layer.

The present invention provides peptoid polymers capable of reducing or inhibiting the formation of ice crystals at sub 0° C. temperatures. Also provided are peptoid-peptide hybrids comprising the peptoid polymers provided herein. The peptoid polymers and peptoid-peptide hybrids provided herein are useful for making cryoprotectant solutions. The peptoid polymers, peptoid-peptide hybrids, and cryoprotectant solutions provided herein are useful for making antifreeze solutions, frozen food products, and cosmetic care products. Also provided herein are methods for preserving a tissue, an organ, a cell, or a biological macromolecule using the compositions described herein.

The present invention provides peptoid polymers capable of reducing or inhibiting the formation of ice crystals at sub 0° C. temperatures. Also provided are peptoid-peptide hybrids comprising the peptoid polymers provided herein. The peptoid polymers and peptoid-peptide hybrids provided herein are useful for making cryoprotectant solutions. The peptoid polymers, peptoid-peptide hybrids, and cryoprotectant solutions provided herein are useful for making antifreeze solutions, frozen food products, and cosmetic care products. Also provided herein are methods for preserving a tissue, an organ, a cell, or a biological macromolecule using the compositions described herein.