Photobluing/whitening-resistant cosmetic/dermatological compositions comprising TiO.sub.2 pigments and deformable hollow particulates
AssigneeSociete L'Oreal S.A.
InventorIsabelle Hansenne
Life of this patent
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Abstract
Topically applicable cosmetic/sunscreen/dermatological compositions, well suited for improved photoprotection of human skin and/or hair against the damaging effects of UV-A and UV-B irradiation and/or for the therapeutic treatment of a disease state of the skin or mucosae, essentially in the absence of photobluing/whitening, comprise at least one titanium dioxide (nano)pigment and an effective photobluing/whitening-reducing amount of deformable hollow particulates (microspheres) having a particle size ranging from 1 .mu.m to 250 .mu.m and which comprise an expanded copolymer of vinylidene chloride, acrylonitrile and a (meth)acrylate.
Claims13
A cosmetic/sunscreen/dermatological composition for topical application to human skin and/or hair which is resistant to photobluing or whitening upon topical application to human skin and/or hair that comprises the combination of the following:
- (i) an amount of at least one titanium dioxide pigment sufficient to inhibit the deleterious effects of ultraviolet radiation to human skin and/or hair upon topical application of said composition thereto;
- and (ii) an amount of deformable hollow particulates having a particle size ranging from 1 .mu.m to 250 .mu.m which are comprised of an expanded copolymer of vinylidene chloride, acrylonitrile and (meth)acrylate sufficient to inhibit the photobluing or whitening that would otherwise occur when said composition is topically applied to human skin and/or hair, wherein the amount of said titanium dioxide nanopigment ranges from 1% to 30% by weight relative to the total weight of the composition, and wherein the amount of said expanded copolymer ranges from 0.1 to 10% by weight relative to the total weight of the composition.
Dependencies are inferred from the claim text.