Personal care compositions based on titanium dioxide and crosspolymers of adipic acid and neopentyl glycol

Abstract

The present invention relates to a personal care composition. In particular, the present invention relates to a hazy benefit personal care composition. Accordingly, the present invention discloses a personal care composition comprising: a) titanium dioxide; and b) 8 to 60 wt.% of a crosslinked polymer comprising adipic acid and neopentyl glycol.

Description

TECHNICAL FIELD

[0001] The present invention relates to a personal care composition. In particular, the present invention relates to a personal care composition for blurring benefits. BACKGROUND

[0002] The appearance of an individual changes with his / her age. These changes manifest in various skin attributes such as wrinkle formation, pores, age spots, and the like. These attributes result in imperfections in the appearance of the skin. In order to address this and to look younger, people use various skin care products.

[0003] Skin care products containing particles and pigments are particularly helpful in this regard. Scientists have found that when particles and pigments are applied in layers onto the skin, they interact with the incident light and change the distribution of the reflected light. The reflected light changes the appearance of the skin. Thus, skin care products containing correctly selected particles and pigments that are capable of providing a better appearance of the skin are the subject of interest. This has prompted the personal care industry to develop new products containing particles and pigments for enhancing the appearance of the skin.

[0004] One of the benefits provided by the aforementioned products is to improve the appearance by providing blurring benefits. This is achieved by reducing the contrast between adjacent areas of the skin by a localized layer of particles. The particles scatter the incident light uniformly in different directions. It reduces the contrast between adjacent points on the skin, making the imperfections less prominent on the skin background. Some prior art in the same technical field is cited below.

[0005] US 2007 / 0243220 (Revlon Consumer Products Corp, 2007) describes a cosmetic composition comprising a cross-linked polyester polyol and a pigment in a cosmetically acceptable carrier for improving the aesthetics of the composition. It further describes that the aesthetics of the composition comprising the cross-linked polyester polyol is comparable to the aesthetics of a composition containing a silicone elastomer.

[0006] WO 2015 / 178007 (Shiseido Company Ltd, 2015) describes a sunscreen product wherein the excessive whiteness due to titanium dioxide and zinc oxide is visually masked upon application to the skin. In order to mask the excessive whiteness otherwise caused by the oxides, the sunscreen product contains a multi-layer type encapsulate containing a pigment. When the sunscreen product is applied to the skin, the capsules rupture and the pigment is released to offset the excessive whiteness due to titanium dioxide and zinc oxide.

[0007] While prior art documents describe cosmetic compositions comprising particles and pigments, however, they are not able to effectively provide a significant blurring benefit. Furthermore, compositions with relatively high particle load result in an uneven appearance of distribution on the skin, which is not liked by individuals.

[0008] Accordingly, an improved personal care composition with a relatively low particle load, which provides an improved blurring benefit to the skin and improves the appearance, is still desired.

[0009] Object of the Invention

[0010] In view of the above, it is an object of the present invention to provide a skin care composition.

[0011] It is a further object of the present invention to provide a skin care composition for improving the appearance of the skin.

[0012] It is yet another object of the present invention to provide a skin care composition, which renders a blurring effect on the skin and thereby improves the appearance of the skin of an individual.

[0013] The present inventors have surprisingly found that a personal care composition comprising titanium dioxide having a specific particle size and a specific amount of a crosslinked polymer comprising adipic acid and neopentyl glycol provides an enhanced blurring benefit and thereby improves the appearance of the skin.

[0014] Accordingly, it is able to fulfill one or more of the above mentioned objects. SUMMARY

[0015] In a first aspect, the present invention provides a personal care composition comprising:

[0016] (a) titanium dioxide having a particle size in the range of 50 to 600 nm; and

[0017] (b) 8 to 60 wt.% of a crosslinked polymer comprising adipic acid and neopentyl glycol.

[0018] In a second aspect, the present invention provides a method of improving the appearance of the skin by blurring imperfections on the skin, the method comprising the step of applying the composition according to the first aspect of the present invention onto the desired skin surface.

[0019] In a third aspect, the present invention provides the use of the composition according to the first aspect of the present invention for a blurring benefit on the skin.

[0020] In a fourth aspect, the present invention provides the use of a composition for a blurring benefit, the composition comprising titanium dioxide having a particle size in the range of 50 to 600 nm and 8 to 60 wt.% of a crosslinked polymer comprising adipic acid and neopentyl glycol.

[0021] These and other aspects, features, and advantages will become apparent to those of ordinary skill in the art from the detailed description herein. For the avoidance of doubt, any feature of one aspect of the present application can be utilized with any other aspect of the application. The word "comprising" is intended to mean "including" but not necessarily "consisting of" or "composed of." In other words, the listed steps or options need not be exhaustive. It is noted that the examples given in the description herein are intended to clarify the application and are not intended to limit the application to their exact physical or procedural conditions. Similarly, all percentages are weight / weight percentages unless otherwise indicated. Except in the operating and comparative examples, or where otherwise explicitly indicated, all numbers in this description indicating amounts of material or conditions of reaction, physical properties of materials and / or use are to be understood as modified by the word "about." Numerical ranges expressed in the format "from x to y" are understood to include x and y. When for a particular feature multiple preferred ranges are described in the format "from x to y", it is understood that all ranges combining the different endpoints are also contemplated. DETAILED DESCRIPTION

[0023] As found herein, the disclosure of the present application is believed to be encompassed by all embodiments of the application found in the claims, which are not multiple dependent or redundant in fact, regardless of the fact that the claims can be found to be multiple dependent or redundant.

[0024] Where a feature is disclosed with respect to a particular aspect of the application (e.g., a composition of the application), such disclosure is also believed to apply to any other aspect of the application (e.g., a method of the application), mutatis mutandis.

[0025] "Personal care composition" as used herein is intended to include compositions for topical application to the skin of a mammal, especially a human. Such compositions can generally be classified as leave-on or rinse-off, but are preferably leave-on. The compositions are formulated as products for application to the human body specifically for improving appearance, but they can also provide cleansing, odor control, or overall aesthetics. The compositions of the present application can be in the form of a liquid, emulsion, cream, foam, scrub, gel, or lotion, or applied with a tool or via a mask or pad. Non-limiting examples of such compositions include leave-on skin care lotions, skin care creams, antiperspirants, deodorants, lipsticks, foundations, mascaras, sunless tanners, and sunscreen lotions. The compositions of the present application are preferably leave-on compositions. "Skin" as used herein is intended to include skin on the face and body (e.g., neck, chest, back, arms, underarms, hands, legs, buttocks, and scalp), especially portions thereof that are exposed to sunlight.

[0026] The term "blurring" herein preferably refers to an optical effect induced by the interaction of inorganic particles with light on the skin. The particles re-distribute light on the skin surface to reduce the contrast between adjacent areas, thereby masking skin imperfections such as wrinkles, age spots, etc.

[0027] The term "particle size" herein generally means the apparent volume median diameter (D 50 (Malvern Instruments Ltd, UK) using dynamic light scattering (see International Standard ISO 13321). For polydisperse samples having particles with a diameter of at least 1 μιη, the particle size can be measured by laser diffraction, e.g. using a system meeting the requirements specified in ISO 13320, such as a Mastersizer 2000 available from Malvern Instruments Ltd. TM (Malvern Instruments Ltd, UK) using dynamic light scattering (see International Standard ISO 13321). For polydisperse samples having particles with a diameter of at least 1 μιη, the particle size can be measured by laser diffraction, e.g. using a system meeting the requirements specified in ISO 13320, such as a Mastersizer 2000 available from Malvern Instruments Ltd. TM 2000, available from Malvern Instruments Ltd.

[0028] According to the present application, there is provided a personal care composition comprising titanium dioxide and from 8 to 60 wt.% of a cross-linked polymer comprising adipic acid and neopentyl glycol.

[0029] Titanium dioxide is preferably used in the composition as a light scattering source. Without wishing to be bound by theory, it is believed that titanium dioxide particles distribute in a local layer on the skin upon application of the composition and scatter incident light in a way that induces an optical blurring effect.

[0030] Preferably, the amount of titanium dioxide is in the range of 0.01 to 5 wt.% of the composition, more preferably in the range of 0.01 to 2 wt.%, even more preferably in the range of 0.05 to 2 wt.% and most preferably in the range of 0.1 to 1 wt.%.

[0031] Preferably, the particle size of titanium dioxide is in the range of 50 to 600 nm, more preferably in the range of 50 to 500 nm, further more preferably in the range of 1000 to 400 nm, even more preferably in the range of 200 to 400 nm, most preferably in the range of 250 to 400 nm.

[0032] Preferably, the titanium dioxide used in the present application is coated with a hydrophobic coating. Preferably, the hydrophobic coating can be selected from the group consisting of fatty acids, silicones and metal oxides. The most preferred coating is selected from the group consisting of aluminium hydroxide and / or polydimethylsiloxane.

[0033] The composition of the present application further comprises from 8 to 60 wt.% of a cross-linked polymer comprising adipic acid and neopentyl glycol.

[0034] As used herein, "crosslinked polymer" refers to a copolymer composed of repeating units crosslinked from one monomer or several monomers with another monomer, preferably containing at least three functional groups, called a crosslinking agent. Unlike non-crosslinked polymers, crosslinked polymers form a three-dimensional structure, thus exhibiting good heat resistance, solvent resistance, wear resistance, etc. Due to its unique chemical structure and excellent performance, crosslinked polymers are widely used in cosmetic products as functional particles, film formers, thickeners, etc.

[0035] The crosslinked polymer used in the present application comprises adipic acid and neopentyl glycol. The crosslinked polymer used in the present application is preferably crosslinked with isopropyl triethyl silane. A specific example of a suitable and most preferred crosslinked polymer is adipic acid and neopentyl glycol crosslinked with isopropyl triethyl silane (INCI name adipic acid / neopentyl glycol crosslinked polymer) blended with a copolymer of vinyl pyrrolidone and vinyl acetate.

[0036] Preferably, the amount of crosslinked polymer is in the range of 10 to 60 wt.%, more preferably 12 to 60 wt.% and further more preferably 20 to 60 wt.% of the composition.

[0037] In another preferred embodiment, the crosslinked polymer comprising adipic acid and neopentyl glycol is present in an amount in the range of 15 to 50 wt.%, more preferably 16 to 40 wt.%, even more preferably in the range of 18 to 30 wt.% of the composition.

[0038] Preferably, the weight ratio of the crosslinked polymer comprising adipic acid and neopentyl glycol to titanium dioxide is in the range of 3000: 1 to 1: 1, more preferably 600: 1 to 5: 1, even more preferably 200: 1 to 20: 1, and most preferably 120: 1 to 30: 1.

[0039] The compositions preferably additionally comprise one or more organic sunscreen agents. A wide variety of organic sunscreen agents are suitable for use in combination with the essential ingredients of the present application. Suitable UV-A / UV-B sunscreen agents include 2-hydroxy-4-methoxybenzophenone, octyldimethyl-p-aminobenzoic acid, galloyl gallate, 2,2-dihydroxy-4-methoxybenzophenone, ethyl-4-(bis(hydroxypropyl))aminobenzoate, 2-ethylhexyl-2-cyano-3,3-diphenylacrylate, 2-ethylhexyl salicylate, glyceryl-p-aminobenzoate, 3,3,5-trimethylcyclohexyl salicylate, methyl anthranilate, p-dimethyl-amino benzoic acid or amino benzoate, 2-ethylhexyl-p-dimethyl-amino-benzoate, 2-phenylbenzimidazole-5-sulfonic acid, 2-(p-dimethylaminophenyl)-5-sulfonic acid benzoxazolyl acid, 2-ethylhexyl-p-methoxycinnamate, butylmethoxydibenzoylmethane, 2-hydroxy-4-methoxybenzophenone, octyldimethyl-p-aminobenzoic acid, and mixtures thereof. The most suitable organic sunscreen agents are 2-ethylhexyl-p-methoxycinnamate, butylmethoxydibenzoylmethane, or mixtures thereof.

[0040] A safe and effective amount of an organic sunscreen agent can be used in the compositions useful in the subject application. The compositions preferably comprise from 0.1% to 10%, more preferably from 0.1% to 5% of an organic sunscreen agent.

[0041] The compositions of the present application preferably comprise a skin lightening agent. Vitamin B3 compounds (including derivatives of vitamin B3), such as niacin, nicotinic acid or niacinamide are preferred skin lightening agents according to the present application, most preferably niacinamide. When used, the vitamin B3 compound is preferably present in an amount ranging from 0.1 to 10%, more preferably from 0.2 to 5%, by weight of the composition.

[0042] The compositions can comprise other beneficial skin care actives such as retinol, retinyl esters, resorcinol, allantoin, ubiquinone, conjugated linoleic acid, 12-hydroxystearic acid or derivatives thereof. The most preferred of these to include in the compositions of the present application are anti-aging actives such as retinol or retinyl esters.

[0043] The compositions of the present application can further comprise a cosmetically acceptable carrier which is an aqueous and oily emulsion, which in certain embodiments can be a water-in-oil emulsion. However, preferred emulsions are of the oil-in-water variety.

[0044] Preferred hydrophobic materials for use in the oil phase of such emulsions include emollients such as fats, oils, fatty alcohols, fatty acids, soaps, silicone oils, synthetic esters and / or hydrocarbons.

[0045] Silicones can be divided into volatile and non-volatile categories. The volatile silicone oil, if used, is preferably selected from cyclic (cyclomethicone) or linear polydimethylsiloxanes containing 3 to 9, preferably 4 to 5 silicon atoms.

[0046] Non-volatile silicones which can be used as emollient materials include polyalkylsiloxanes, polyalkylarylsiloxanes and polyether siloxane copolymers. Substantially non-volatile polyalkylsiloxanes useful herein include, for example, polydimethylsiloxanes having a viscosity of about 5 x 10 -6 to 0.1 m 2 / s at 25°C. Preferred non-volatile emollients useful in the compositions of the present application are polydimethylsiloxanes having a viscosity of about 1 x 10 -s to about 4 x 10 -4 m 2 / s at 25°C.

[0047] Specific examples of non-silicone emollients include stearyl alcohol, glycerol monoricinoleate, mink oil, cetyl alcohol, isopropyl isostearate, stearic acid, isobutyl palmitate, isocetyl stearate, oleyl alcohol, isopropyl laurate, hexyl laurate, decyl oleate, octadecan-2-ol, isocetyl alcohol, eicosanyl alcohol, behenyl alcohol, cetyl palmitate, silicone oils such as dimethicone, di-n-butyl sebacate, isopropyl myristate, isopropyl palmitate, isopropyl stearate, butyl stearate, polyethylene glycol, triethylene glycol, lanolin, cocoa butter, corn oil, cottonseed oil, olive oil, palm kernel oil, rapeseed oil, safflower seed oil, evening primrose oil, soybean oil, sunflower seed oil, avocado oil, sesame seed oil, coconut oil, peanut oil, castor oil, acetylated lanolin alcohols, petrolatum oil, mineral oil, butyl myristate, isostearic acid, palmitic acid, isopropyl linoleate, lauryl lactate, myristyl lactate, decyl oleate, myristyl myristate, and mixtures thereof.

[0048] Ester emollients include:

[0049] a) alkenyl or alkyl esters of fatty acids having 10 to 20 carbon atoms. Examples thereof include isomyristate neopentanoate, isodecyl neopentanoate, isononyl isononanoate, cetyl ricinoleate, oleyl myristate, oleyl stearate and oleyl oleate;

[0050] b) ether-esters such as fatty acid esters of ethoxylated fatty alcohols;

[0051] c) polyol esters. Butylene glycol, ethylene glycol mono- and di-fatty acid esters, diethylene glycol mono- and di-fatty acid esters, polyethylene glycol (200-6000) mono- and di-fatty acid esters, propylene glycol mono- and di-fatty acid esters, polypropylene glycol 2000 mono-oleate, polypropylene glycol 2000 mono-stearate, ethoxylated propylene glycol mono-stearate, glycerol mono- and di-fatty acid esters, polyglycerol polyfatty acid esters, ethoxylated glycerol mono-stearate, 1,3-butylene glycol mono-stearate, 1,3-butylene glycol di-stearate, polyoxyethylene polyol fatty acid esters, sorbitol fatty acid esters and polyoxyethylene sorbitol fatty acid esters are satisfactory polyol esters. Particularly useful are C1-C 30 alcohols, trimethylolpropane and neopentyl glycol esters. One example is pentaerythrityl tetraethylhexanoate;

[0052] d) wax esters such as beeswax, sperm wax and tribehenin wax;

[0053] e) sterol esters, with cholesteryl fatty acid esters being an example thereof;

[0054] f) sugar esters of fatty acids such as sucrose polybehenate and sucrose polycottonate; or

[0055] g) mixtures of two or more of the foregoing (a) to (f).

[0056] Also of particular use are C sold under the brand name Cetiol®. 12-15 alkyl benzoate.

[0057] Hydrocarbons that are suitable emollients include petrolatum, mineral oil, C 11 -C 13 isoparaffins, polyalphaolefins, isohexadecane or mixtures thereof.

[0058] The amount of water in the carrier can range, for example, from 1 to 99%, more preferably from 5 to 90%, even more preferably from 35 to 80%, optimally from 40 to 70%, by weight of the personal care composition.

[0059] Other materials that can be included in the cosmetically acceptable carrier include solvents, humectants, thickening agents and powders. Examples of each of these types of materials, which can be used individually or as mixtures, are as follows:

[0060] Solvents include ethanol, isopropyl alcohol, acetone, ethylene glycol monoethyl ether, diethylene glycol monobutyl ether, diethylene glycol monoethyl ether and mixtures thereof.

[0061] The wetting agents include those of the polyol type. Typical polyols include polyalkylene glycols, more preferably alkylene polyols and their derivatives, including propylene glycol, dipropylene glycol, polypropylene glycol, polyethylene glycol and their derivatives, sorbitol, hydroxypropyl sorbitol, hexanediol, 1,3-butanediol, isoprene glycol, 1,2,6-hexanetriol, glycerol, ethoxylated glycerol, propoxylated glycerol, and mixtures thereof. The amount of the wetting agent can range from, for example, 0.5% to 50% by weight of the composition, more preferably 1% to 15%. Glycerol (also known as glycerol) is most preferred. The amount of glycerol can range from, for example, 0.5% to 50% by weight of the composition, more preferably 1% to 35%, and most preferably 2% to 15%.

[0062] Various thickeners may be included in the composition. Exemplary, but not limiting, are stearic acid, acrylamide / sodium acryloyldimethyl taurate copolymer (… AVC), hydroxyethyl acrylate / sodium acryloyl dimethyl taurate copolymer, aluminum starch octenyl succinate, polyacrylates (such as carbomer, including...) 980 1342, Pemulen and The composition includes thickeners, polysaccharides (including xanthan gum, guar gum, pectin, carrageenan, and fungal gums), cellulose (including carboxymethyl cellulose, ethyl cellulose, hydroxyethyl cellulose, and methylhydroxymethyl cellulose), minerals (including talc, silica, alumina, mica, and clay, the latter represented by bentonite, lithium montmorillonite, and palygorskite), magnesium aluminum silicate, and mixtures thereof. The amount of thickener may, for example, be in the range of 0.05 to 10%, more preferably 0.3 to 2%, by weight of the composition.

[0063] The powders include chalk, talc, bleaching clay, kaolin, starch, gum, colloidal silica, sodium polyacrylate, tetraalkyl and / or trialkylaryl ammonium saponite, chemically modified magnesium aluminum silicate, organically modified montmorillonite clay, hydrated aluminum silicate, pyrolytic silica, carboxyvinyl polymer, sodium carboxymethyl cellulose, and ethylene glycol monostearate.

[0064] The personal care composition of the present application is preferably a skin care composition. More preferably, the composition is preferably an antiperspirant composition or a facial (other than the eyelids and lips) care composition. Skin care composition means a composition suitable for topical application to human skin, including leave-on and rinse-off products. Preferably, the term encompasses fluids or liquids, in particular moisturizers and not make-up products. Most preferably, the composition is a leave-on composition. The term "leave-on" as used in reference to the compositions herein means a composition that is applied to the skin or rubbed on the skin and left on the skin. The term "rinse-off" as used in reference to the compositions herein means a skin cleanser that is applied to the skin or rubbed on the skin and is substantially rinsed off immediately after application. The term "skin" as used herein includes the skin on the face (other than the eyelids and lips), neck, chest, abdomen, back, arms, underarms, hands and legs. Preferably, the term "skin" includes the skin on the face (other than the eyelids and lips) and underarms. More preferably, the term means the skin on the face other than the lips and eyelids.

[0065] The composition can be formulated in any known form, more preferably a cream or a lotion.

[0066] The composition for use in the present application can be in a jar or a tube, as well as any other form common for cosmetic, cream, wash and lotion type products. The composition can be applied topically, preferably 1-4 milligrams of the composition per square centimeter of skin.

[0067] Preferably, the composition is capable of achieving a pore CWA reduction of at least 35%, more preferably 40 to 80% as measured by the procedure in the Examples of use.

[0068] The composition of the present application preferably delivers a cosmetic benefit to the skin of an individual to whom it is topically applied. Examples of cosmetic benefits include reducing the appearance of fine lines, wrinkles, pores and / or blemish spots on the desired skin surface; evening skin tone, long-lasting optical effects, or combinations thereof.

[0069] The present application also provides a method of improving the appearance of skin by blurring imperfections of the skin, the method comprising the step of applying to the desired skin surface a composition according to the present application.

[0070] The present application further provides the use of the present application for blurring benefits.

[0071] The present application further provides the use of the composition as mentioned above, wherein the blurring benefit is provided for reducing the appearance of fine lines, wrinkles, pores and / or blemish spots on the skin.

[0072] The following examples are provided to facilitate an understanding of the present application. The examples are not intended to limit the scope of the claims.

[0073] According to the present application, there is provided a method of improving the appearance of skin by blurring imperfections on the skin. The method comprises the step of applying a composition according to the first aspect to the desired skin surface.

[0074] According to the present application, there is provided the use of a composition according to the first aspect for blurring benefits. The blurring benefits are reflected by a reduction in the appearance of fine lines, wrinkles, pores and / or blemish spots on the skin.

[0075] According to the present application, there is provided the use of a composition for providing blurring benefits to the skin, the composition comprising titanium dioxide and from 8 to 60 wt% of a crosslinked polymer comprising adipic acid and neopentyl glycol.

[0076] The application will now be demonstrated by the following non-limiting examples. The examples are for illustration only and do not limit the scope of the application in any way. DETAILED DESCRIPTION

[0077] Example

[0078] Materials:

[0079] Table 1 :

[0080]

[0081] Effect of combinations of titanium dioxide particles with cross-polymer of adipic acid and neopentyl glycol on haze efficacy

[0082] A series of skin care formulations were prepared according to the following table:

[0083] Table 2:

[0084]

[0085] * : Halosphere TM N contains about 47% of a crosslinked polymer of adipic acid and neopentyl glycol

[0086] Example 1 is a formulation according to the present application. Examples A-E are comparative examples.

[0087] Method for estimating contrast weighted area (CWA)

[0088] The performance of the personal care compositions in Table 1 above were measured using the procedures given below:

[0089] An image analysis algorithm was developed to extract the contrast between the pores and the background of the BSP. The parameter Pore CWA calculates the contrast per image area of the pores, which was used to measure and quantify the pore level. The simplest quantitative definition of contrast is the difference in light intensity between the region of interest and its surrounding environment:

[0090] C = (Lb - L f )

[0091] where C is the contrast, L f is the light intensity (RGB value) of the pores, and L b is the light intensity (RGB value) of the background. The higher the pore CWA, the more visible the pores are. Thus, the pore CWA reduction is given by the following equation. The higher the percent pore CWA reduction, the better the product performs.

[0092] % Pore CWA Reduction = (Pore CWA 基线 - Pore CWA 产品 / Pore CWA 基线 ) x 100%

[0093] A commercial deep pore version of BioSkin Sheet (BSP) obtained from Beaulax Co. Ltd., Japan (Code 10AN) was used as an in vitro substrate to mimic the appearance of human skin. Code 10AN represents a pore size distribution large enough. Then, the above prepared formulations were applied onto the BSP at a dose of 2 mg / cm 2 of the formulation. Then spread out gently with a finger cots and next dried for 30 minutes at ambient temperature (about 25°C) before taking the images.

[0094] An image was taken before the application of the formulation, which was called "bef". Another image was taken after the application of the respective formulation, which was called "aft". The "% change from baseline" was calculated as "(bef - aft) / bef * 100%", which is also the % pore contrast weighted average (CWA) reduction in terms of the attribute of pore CWA. This simply represents the blurring efficacy of the formulation. The higher the pore CWA reduction, the better the formulation performs in delivering blurring benefits.

[0095] The results are summarized in Table 3 below.

[0096] Table 3:

[0097]

[0098] From the above table, it is evident that the example within the scope of the present invention (Example 1) provides a significantly higher percent pore CWA reduction compared to Comparative Examples A to E. From the above data (Examples A and B), it is further evident that titanium dioxide coated with some other material (e.g. mica) cannot work in conjunction with the cross-linked polymer of adipic acid and neopentyl glycol.

[0099] Thus, from the above description, it is evident that the present invention provides a personal care composition which renders a blurring effect on the skin and thereby improves the skin appearance of an individual.

Claims

1. A personal care composition comprising: a) Titanium dioxide with a particle size in the range of 200 nm to 600 nm; and b) 8 to 60% by weight of cross-linked polymers containing adipic acid and neopentyl glycol; The particle size refers to the apparent volume median diameter (D) in the non-aggregated state. 50 ).

2. The composition according to claim 1, wherein the amount of titanium dioxide is in the range of 0.01 to 5% by weight of the composition.

3. The composition according to claim 2, wherein the amount of titanium dioxide in the composition is in the range of 0.01 to 2% by weight of the composition.

4. The composition according to any one of claims 1 to 3, wherein the weight ratio of the crosslinked polymer to the titanium dioxide is in the range of 3000:1 to 1:

1.

5. The composition according to claim 4, wherein the weight ratio of the crosslinked polymer to the titanium dioxide is in the range of 200:1 to 20:

1.

6. The composition according to claim 4, wherein the particle size of the titanium dioxide is in the range of 200 nm to 500 nm.

7. The composition according to claim 6, wherein the particle size of the titanium dioxide is in the range of 200 nm to 400 nm.

8. The composition according to any one of claims 1 to 3, wherein the titanium dioxide is coated with a hydrophobic coating.

9. The composition according to any one of claims 1 to 3, wherein the amount of crosslinked polymer is in the range of 12 to 60% by weight of the composition.

10. The composition according to claim 9, wherein the amount of crosslinked polymer is in the range of 18 to 30% by weight of the composition.

11. The composition according to any one of claims 1 to 3, further comprising one or more organic sunscreen agents.

12. A method for improving the appearance of skin by blurring skin defects, comprising the step of applying a composition according to any one of the preceding claims to a desired skin surface.

13. Use of the composition according to any one of claims 1 to 11 for the blurring benefit, wherein the blurring benefit is for reducing the appearance of fine lines, wrinkles, pores and / or blemishes on the skin.

14. Use of the composition for the purpose of obscuring benefits, said composition comprising: a) Titanium dioxide with a particle size in the range of 200 nm to 600 nm; and b) 8 to 60% by weight of a crosslinked polymer containing adipic acid and neopentyl glycol; and The blurring benefits mentioned above are used to reduce the appearance of fine lines, wrinkles, pores, and / or blemishes on the skin.

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