Cosmetic compositions capable of forming a multilayer structure after application to a keratinous material are provided, as well as methods of applying such compositions to a keratinous material.

Cosmetic compositions capable of forming a multilayer structure after application to a keratinous material are provided, as well as methods of applying such compositions to a keratinous material.

A hair cleanser is provided, comprising: a dermatologically acceptable vehicle; a dermatologically acceptable hair care cleansing surfactant; a dermatologically acceptable silicone; and a deposition aid polymer, wherein the deposition aid polymer is a dextran polymer crosslinked with a dextran crosslinking agent of formula (I)

##STR00001##

wherein X is a halogen; wherein each R.sup.1 is independently selected from a substituted or unsubstituted C.sub.1-6 alkyl group; wherein each R.sup.2 is independently selected from the group consisting of a C.sub.1-6 alkanediyl group; wherein Y is a divalent bridging group; and wherein the deposition aid polymer enhances deposition of the dermatologically acceptable silicone from the hair cleanser onto mammalian hair.

A hair cleanser is provided, comprising: a dermatologically acceptable vehicle; a dermatologically acceptable hair care cleansing surfactant; a dermatologically acceptable silicone; and a deposition aid polymer, wherein the deposition aid polymer is a dextran polymer crosslinked with a dextran crosslinking agent of formula (I)

##STR00001##

wherein X is a halogen; wherein each R.sup.1 is independently selected from a substituted or unsubstituted C.sub.1-6 alkyl group; wherein each R.sup.2 is independently selected from the group consisting of a C.sub.1-6 alkanediyl group; wherein Y is a divalent bridging group; and wherein the deposition aid polymer enhances deposition of the dermatologically acceptable silicone from the hair cleanser onto mammalian hair.

Bridged polysilsesquioxane based sunscreens prepared as nanoparticles via oil/water microemulsion polymerization, sol-gel polymerizations, or a modified Stöber process. Minimized leaching and decreased levels of photo-degradation were achieved with covalent incorporation, with bridged incorporation necessary to ensure isolation of the sunscreen and any photo-products from skin. SPF values were found to be comparable to existing commercial sunscreens. Furthermore the bridged polysilsesquioxane based sunscreens can be classified as broad-spectrum, and rated from moderate to superior in terms of UVA protective ability.

Bridged polysilsesquioxane based sunscreens prepared as nanoparticles via oil/water microemulsion polymerization, sol-gel polymerizations, or a modified Stöber process. Minimized leaching and decreased levels of photo-degradation were achieved with covalent incorporation, with bridged incorporation necessary to ensure isolation of the sunscreen and any photo-products from skin. SPF values were found to be comparable to existing commercial sunscreens. Furthermore the bridged polysilsesquioxane based sunscreens can be classified as broad-spectrum, and rated from moderate to superior in terms of UVA protective ability.

The invention relates to a cosmetic product in the form of a creamy compact powder containing a) 30-65% by weight, on the basis of the total weight of the product, of a powder phase; b) 35-70% by weight, on the basis of the total weight of the product, of a liquid binder phase consisting of one or more liquid binders. The products according to the invention have hybrid properties between compact powdered products and poured products.

The invention relates to a cosmetic product in the form of a creamy compact powder containing a) 30-65% by weight, on the basis of the total weight of the product, of a powder phase; b) 35-70% by weight, on the basis of the total weight of the product, of a liquid binder phase consisting of one or more liquid binders. The products according to the invention have hybrid properties between compact powdered products and poured products.

Disclosed is a personal care composition comprising (a) particle comprising chitosan salt at the outer surface of the particle; and (b) functionalized non-volatile silicone, wherein the amount of the functionalized non-volatile silicone is greater than 20% by weight of the total non-volatile silicone.

Disclosed is a personal care composition comprising (a) particle comprising chitosan salt at the outer surface of the particle; and (b) functionalized non-volatile silicone, wherein the amount of the functionalized non-volatile silicone is greater than 20% by weight of the total non-volatile silicone.