Topical skin composition

Abstract

The present invention provides a topical skin composition comprising, 0.05 to 30 wt% starch; and a cosmetically acceptable vehicle selected from water, oil, water thickened with a polymer, an emulsion and a silicone system; wherein the starch particles have round or oval morphology.

Description

[0001] TOPICAL SKIN COMPOSITION

[0002] Field of the invention

[0003] The present invention relates to mild topical skin composition and more particularly personal compositions. The present invention relates to the field of topical skin compositions which are gentle and mild on skin and provide a moisturized end feel. More particularly, it relates to such compositions comprising starch.

[0004] Background of the invention

[0005] Skin is subject to deterioration through dermatological disorders, environmental abuse (wind, air conditioning, central heating.) or through the normal aging process (chronoaging) which may be accelerated by exposure of skin to sun (photoaging). In recent years the demand for cosmetic compositions and cosmetic methods for improving the appearance and condition of skin has grown enormously.

[0006] Many people are concerned with their skin quality and appearance and want to work on it. Dermatologists are also keen to ensure that skin care products support the skin and help improve the quality of the skin. Essentially topical skin products should care for the skin and add back to the skin.

[0007] Most people consider skin health and appearance as one of the key indicators of their own beauty and health. This is affected by factors like age, hormonal changes, occurrence of acne and exposure to sunlight and pollution.

[0008] Therefore, there is always a need for a composition that works to improve the appearance of skin and it is a highly desired consumer demand to include the skin benefit agents in consumables that are already a part of daily routine and does not require any extra steps towards taking care of the skin.

[0009] Therefore a composition that caters to the timeless demand of skin improvement is need of the hour that is affordable and works with the skin enhancing it with continued use along with superior and skin sensory. There is a need for a topical skin care composition which has fewer chemical dermatological actives, and yet provides enhanced skin benefits and desired sensory in use and post use properties.

[0010] Summary of the invention

[0011] Personal topical skin compositions many a times have a dry after feel and need to be followed up with a moisturizing lotion. The present invention provides a composition that is mild and gentle on the skin and gives a smooth and moisturized after feel to the skin.

[0012] First aspect of the present invention provides topical skin composition comprising, i. 0.05 to 30 wt% starch; and ii. a cosmetically acceptable vehicle selected from water, oil, water thickened with a polymer, an emulsion and a silicone system; wherein the starch particles have round or oval morphology.

[0013] Second aspect of the present invention provides use of 0.05 to 30 wt% starch, based on the weight of the resulting topical composition, in a topical composition comprising a cosmetically acceptable vehicle selected from water, oil, water thickened with a polymer, an emulsion and a silicone system; wherein particulate morphology of the starch is round or oval, for providing skin clarity and / or glow and radiance, as compared to the composition without starch.

[0014] Third aspect of the present invention provides use of 0.05 to 30 wt% starch, based on the weight of the resulting topical composition, in a topical composition comprising a cosmetically acceptable vehicle selected from water, oil, water thickened with a polymer, an emulsion and a silicone system; wherein particulate morphology of the starch of the composition is round or oval, for providing better moisturization, as compared to the composition without starch.

[0015] Fourth aspect of the present invention provides use of 0.05 to 30 wt% starch, based on the weight of the resulting topical composition, in a topical composition comprising a cosmetically acceptable vehicle selected from water, oil, water thickened with a polymer, an emulsion and a silicone system; wherein particulate morphology of the starch of the composition is round or oval, for providing a gentle and mild after-feel on site of application, as compared to the composition without starch. Fifth aspect of the present invention provides use of 0.05 to 30 wt% starch, based on the weight of the resulting topical composition, in a topical composition comprising a cosmetically acceptable vehicle selected from water, oil, water thickened with a polymer, an emulsion and a silicone system; wherein particulate morphology of the starch of the composition is round or oval, for providing skin clarity and / or glow on site of application, as compared to the composition without starch.

[0016] These and other aspects, features and advantages will become apparent to those of ordinary skill in the art from a reading of the following detailed description and the appended claims. For the avoidance of doubt, any feature of one aspect of the present invention may be utilized in any other aspect of the invention.

[0017] The term "comprising" is meant not to be limiting to any subsequently stated elements but rather to encompass non-specified elements of major or minor functional importance. In other words the listed steps, elements or options need not be exhaustive. Whenever the words "including" or "having" are used, these terms are meant to be equivalent to "comprising" as defined above. In other words, the listed steps or options need not be exhaustive It is noted that the examples given in the description below are intended to clarify the invention and are not intended to limit the invention to those examples per se. Similarly, all percentages are weight / weight percentages unless otherwise indicated.

[0018] Except in the operating and comparative examples, or where otherwise explicitly indicated, all numbers in this description and claims 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".

[0019] Numerical ranges expressed in the format "from x to y" are understood to include x and y. When for a specific 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.

[0020] It should be noted that in specifying any range of concentration or amount, any particular upper concentration can be associated with any particular lower concentration or amount. For a more complete understanding of the above and other features and advantages of the invention, reference should be made to the following detailed description of preferred embodiments.

[0021] Detailed description of the invention

[0022] The present invention relates to skin care compositions suitable for topical application for use on the human body, such as the skin and hair. In particular, it topical skin composition having starch which are gentle and mild on skin and provide a moisturized end feel.

[0023] The present invention provides a topical skin composition comprising, 0.05 to 30 wt% starch; and a cosmetically acceptable vehicle selected from water, oil, water thickened with a polymer, an emulsion and a silicone system; wherein the starch particles have round or oval morphology.

[0024] It was seen that incorporation of starch in topical skin composition has shown unexpected benefits. The unexpected benefits are in terms of improvement in overall skin sensory and lather profile at.

[0025] It was also a surprising finding how morphology of the starch particles could bring about in use and post use sensory benefit and improved skin care benefits. Botanical origin linked morphological differences characterize skin feel & sensory. The inventors have been able to formulate a composition that doesn’t require many dermatological actives for delivering skin benefits and is less drying for the skin.

[0026] For the purposes of this invention, round and oval particles not only include geometrically round and oval particles but also encompass particles having smooth morphology which are not irregular on the surface.

[0027] For the purposes of this invention the term ‘native’ when used for starch means that no chemical modification has been done to starch.

[0028] Topical skin composition

[0029] The present invention provides a topical skin composition comprising, 0.05 to 30 wt% starch; and a cosmetically acceptable vehicle selected from water, oil, water thickened with a polymer, an emulsion and a silicone system; wherein the starch particles have round or oval morphology.

[0030] It is preferred in the composition of the present invention that the starch is pregelatinized native ungelatinized, partially gelatinized or partially hydrolyzed.

[0031] It is preferred in the composition of the present invention that particle size of the starch is in the range of from 2 to 50pm.

[0032] It is preferred in the composition of the present invention that the composition comprises a rheology modifying agent selected from group consisting of thickening polymer, a suspending polymer, an electrolyte salt and combinations thereof.

[0033] It is preferred in the composition of the present invention that the suspending polymer comprises an acrylic polymer. It is preferred that the suspending polymer is an acrylic polymer.

[0034] It is preferred in the composition of the present invention that the composition comprises a non-soap surfactant is selected from the group consisting of anionic surfactant, amphoteric surfactant, zwitterionic surfactant, non-ionic surfactant and mixtures thereof.

[0035] It is preferred in the composition of the present invention that the composition comprises 0.1 to 3 wt% of a chelating agent.

[0036] It is preferred in the composition of the present invention that the chelating agent is selected from the from group consisting of Ethylene Diamine Tetra Acetic acid (EDTA), or Diethylene Triamine Penta Acetic acid (DTPA), sodium gluconate, sodium citrate and mixtures thereof.

[0037] It is preferred in the composition of the present invention that the composition comprises a preservative in the range of from 0.1 to 5 wt% by weight of the composition.

[0038] It is preferred in the composition of the present invention that the preservative is selected from sodium benzoate, benzoic acid, potassium sorbate, methylparaben, ethylparaben, propylparaben, butylparaben and heptyl paraben, combinations or mixtures thereof. Other ingredients of the composition of the present invention may vary in type and concentrations according to the format of the composition.

[0039] A cosmetically acceptable carrier

[0040] The composition of the invention comprises a cosmetically acceptable vehicle selected from water, oil, water thickened with a polymer, an emulsion (oil in water or water in oil) and a silicone system. The composition may be delivered in a lotion, cream, serum, essence or gel form. To enable this, the composition may comprises a cosmetically acceptable vehicle. The cosmetically acceptable vehicle is preferably chosen from water (which maybe thickened using polymers), or an emulsion which may be water-in-oil or an oil-in-water emulsion. Products in cream or lotion form are generally emulsions.

[0041] The type and wt% of cosmetically acceptable carrier may vary according to the type of composition and may vary from about 1 to 95 wt% of the weight of composition of the present invention.

[0042] Products in the gel form contain predominantly water in the range of 65 to 90 wt percent, in serum in 60 to 90 wt percent and in essence in 85 to 95 wt percent of the composition.

[0043] The composition of the invention may include a humectant which is generally a polyhydric alcohol. Preferably the humectant is at least one of propylene glycol, dipropylene glycol, polypropylene glycol, polyethylene glycol, sorbitol, hydroxypropyl sorbitol, hexylene glycol, 1 ,3-butylene glycol, isoprene glycol, 1 ,3 propanediol, pentylene glycol, hexylene glycol, 1 ,2,6-hexanetriol, glycerol, ethoxylated glycerol, and propoxylated glycerol. Preferred humectants are selected from one or more of glycerine, 1 ,3-butylene glycol, propylene glycol, 1 ,3 propanediol, pentylene glycol, hexylene glycol, and sorbitol. Glycerol is the most preferred humectant. It is preferred that the amount of humectant is 1 to 10 percent, more preferably 2 to 8 percent by weight of the composition.

[0044] The composition preferably includes a skin brightening compound. Illustrative substances are placental extract, lactic acid, vitamin B3 compound preferably niacinamide, arbutin, kojic acid, ferulic acid, hydroquinone, resorcinol and derivatives including 4-substituted resorcinol (e.g. hexyl resorcinol or ethyl resorcinol), hydroxy stearic acid (HSA) preferably 12-HSA, pyridoxine hydrochloride, alpha hydroxyacid (AHA), beta hydroxyacid (BHA), polyhydroxy acid (PHA) or natural skin brightening extracts like honey or lemon extracts and combinations thereof. More preferably, such skin brightening compound is selected from one or more of vitamin B3 compound, resorcinol like ethylresorcinol or hexylresorcinol, , pyridoxine hydrochloride, AHA, BHA, PHA or natural skin brightening extracts like honey or lemon extracts. Most preferably the skin brightening compound is selected from one or more of niacinamide, 4- substituted resorcinol (e.g. 4-ethyl resorcinol or 4-hexyl resorcinol) and 12-HSA. Amounts of these skin brightening compounds may range from 0.01 to 10 percent, preferably from 0.1 to 2 percent by weight of the composition.

[0045] A preferred format for the solid form of the composition is a cream, which could be a vanishing cream base. Vanishing cream base is one which comprises 3 to 25 wt percent fatty acid. Optionally, the composition may comprise 0.1 to 10 wt percent soap. When included, the fatty acid is preferably a C10 to C22 fatty acid, more preferably a C16 to C18 fatty acid. Most preferably the fatty acids are stearic acid or palmitic acid or a mixture thereof and the soap is preferably the potassium salt of the fatty acid mixture. The fatty acid is often hystric acid which is substantially (generally about 90 to 95 percent) a mixture of 45 percent stearic acid and 55 percent palmitic acid.

[0046] Preferably, the composition comprises emollients. Examples of emollients that may be used in the leave-on composition include stearyl alcohol, glyceryl monoricinoleate, mink oil, isopropyl isostearate, 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 dimethylpolysiloxane, din-butyl sebacate, isopropyl myristate, isopropyl palmitate, isopropyl stearate, butyl stearate, polyethylene glycol, triethylene glycol, lanolin, cocoa butter, corn oil, cotton seed oil, olive oil, palm kernel oil, rape seed oil, safflower seed oil, evening primrose oil, soybean oil, sunflower seed oil, avocado oil, sesame seed oil, coconut oil, arachis oil, castor oil, acetylated lanolin alcohols, petroleum jelly, mineral oil, butyl myristate, isopropyl linoleate, lauryl lactate, myristyl lactate, decyl oleate, myristyl myristate and mixtures thereof.

[0047] Preferably, the composition comprises solvents. Examples of solvents that may be used in the composition include ethyl alcohol, isopropanol, acetone, ethylene glycol mono ethyl ether, diethylene glycol mono butyl ether, diethylene glycol mono ethyl ether and mixtures thereof. Preferably, the composition comprises powders. Examples of powders that may be used in the composition include chalk, talc, fullers earth, kaolin, gums, colloidal silica sodium polyacrylate, tetra alkyl and / or trialkyl aryl ammonium smectites, chemically modified magnesium aluminium silicate, organically modified montmorillonite clay, hydrated aluminium silicate, fumed silica, carboxyvinyl polymer, sodium carboxymethyl cellulose, ethylene glycol monostearate and mixtures thereof.

[0048] Preferably, the composition comprises preservatives to protect against the growth of potentially harmful microorganisms. Examples of ingredients that may be used as preservatives in the composition include alkyl esters of para-hydroxybenzoic acid, hydantoin derivatives, propionate salts, and a variety of quaternary ammonium compounds. More preferably, ingredients that may be used as preservative in the composition are sodium benzoate, iodopropynyl butyl carbamate, methylisothiazolinone, iodopropynylbutylcarbamate, phenoxyethanol, methyl paraben, propyl paraben, imidazolidinyl urea, sodium dehydroacetate, ethylhexylglycerin, benzyl alcohol, alkane diols and mixtures thereof. The alkane diols that are suitable for use as preservative are C6-C12 alkanes that are vicinally substituted with hydroxy groups. Illustrative examples include 1 ,2-octane diol (caprylyl glycol), 2,3-octane diol, 1 ,2-nonane diol, 1 ,2-decane diol, 1 ,2-hexane diol, 3,4-octane diol, mixtures thereof or the like where caprylyl glycol is typically the most preferred. When present in the composition, preservatives are added preferably in an amount 0.001 to 5 wt percent, more preferably 0.01 to 3 wt percent and most preferably 0.02 to 2 wt percent, even most preferably 0.25 to 1.5 percent.

[0049] Preferably, the composition comprises a range of other optional ingredients that include antioxidants, binders, buffering agents, colorants, astringents, fragrance, opacifying agents, conditioners, exfoliating agents, pH adjusters, skin sensates, skin soothing agents, and skin healing agents.

[0050] The composition of the invention could also be incorporated in a format for cleansing topical surfaces of the human or animal body. Topical skin composition are of the so called wash-off or rinse-off format. By these formats, is meant that the composition is generally diluted with water and applied on the topical surface e.g. the skin or hair and then rinsed off with copious amounts of water after a few minutes. Topical skin composition could be in any format either in solid form or in liquid form. When in solid form it is preferably a bar which may contain soap, anionic surfactant or a combination of the two.

[0051] The soap for preparing the topical skin composition of the invention is preferably a C8- C24 soap, more preferably C10-C20 soap and most preferably C12-C18 soap. The cation of the soap can be alkali metal, alkaline earth metal or ammonium. Preferably, the cation of the soap is selected from sodium, potassium or ammonium. More preferably the cation of the soap is sodium or potassium. Fatty acids derived from other suitable oils / fats such as groundnut, soybean, tallow, palm, palm kernel, etc. may also be used in other desired proportions.

[0052] Anionic surfactants for use in wash-off compositions are preferably selected from alkyl ether sulphate, primary alkyl sulphate, secondary alkyl sulphonates, alkyl benzene sulphonates, or ethoxylated alkyl sulphates. The anionic surfactant other than soap which is preferred in the topical skin composition is an alkyl ether sulphate preferably those having between 1 and 3 ethylene oxide groups, either from natural or synthetic source and / or sulphonic acid. Especially preferred are sodium lauryl ether sulphates. Alkyl polyglucoside may also be present in the composition, preferably those having a carbon chain length between Ce and C. When present, the anionic surfactant is preferably present in an amount of 1 to 90 percent, preferably from 10 to 85 percent, more preferably 25 to 75 percent by weight of the topical skin composition. The topical skin composition is preferably in the form of a solid or semi solid form, most preferably in a solid form. Preferred solid compositions are in the shape of a soap bar.

[0053] Preferred solid topical skin compositions may include other known ingredients such as perfumes, pigments, preservatives, emollients, sunscreens, gelling agents and thickening agents. Water is a preferred carrier. When water is present, it is preferably present in at least 1 percent, more preferably at least 2 percent, further more preferably at least 5 percent by weight of the composition. When water is the carrier, a preferred topical skin composition comprises 10 to 50 percent, more preferably 12 to 40 percent, most preferably 12 to 22 percent by weight water.

[0054] The topical skin composition of the invention may also be delivered through a moisturizing bar or a moisturizing liquid composition. Moisturizing bar compositions comprising fatty acyl isethionates (e.g. cocyl isethionate) are especially preferred. Fatty acyl isethionates (e.g., cocoyl isethionates) surfactant "products" are defined as mixtures of anionic acyl isethionate surfactants and fatty acids / fatty acid soaps. They are highly desirable in personal care skin or hair cleansing products, particularly in personal care products, because they lather well, are mild to the skin and have good emollient properties. Typically, fatty acid isethionate surfactant products are produced by esterification of fatty acids or by reaction of fatty acid chloride having carbon chain length of C8 to C20 with isethionate. A typical surfactant product containing fatty acyl isethionate contains about 40 to 95 weight percent acid isethionate, and 5 to 50 weight percent, typically 10 to 40 weight percent free fatty acid, in addition to isethionate salts, typically at less than 5 percent, and trace (less than 2 weight percent) of other additives. Fatty acid soap may be included in the range of 5 to 15 wt percent. Other surfactants like betaines may be included in 1 to 5 wt percent. Water is generally included in 2 to 8 wt percent of the composition.

[0055] Wash-off composition in the form of a liquid generally comprises surfactants at low concentration and are mild on skin. The surfactant is generally included in 4 to 18 percent, preferably 6 to 12 percent by weight of the liquid topical skin composition. Surfactants for inclusion in the liquid topical skin composition of the invention may preferably be of the anionic, non-ionic, cationic or amphoteric types. A useful surfactant for inclusion in the liquid topical skin composition of the invention is sodium lauryl ether sulphate (SLES). The SLES for use in the present invention generally preferably has 1 to 3 Ethoxylate (EO) groups. SLES is preferably included in 3 to 8 percent by weight of the composition. The other surfactant which may be included in the present invention is cocoamide monoethanol amine (CMEA). CMEA is preferably included in 1 to 3 percent by weight of the composition. One preferred aspect of the liquid topical skin composition of the invention relates to an aspect wherein the surfactant comprises a mixture of sodium lauryl ether sulphate (SLES) and coco amide monoethanol amine (CMEA). Another useful surfactant for inclusion in the liquid topical skin composition of the invention

[0056] Water is a preferred carrier in liquid topical skin compositions of the invention. In such compositions, water is generally present in 70 to 95 percent by weight. Preferred liquid topical skin compositions may include other known ingredients such as electrolytes, perfumes, pigments, preservatives, emollients, sunscreens, emulsifiers, gelling agents and thickening agents.

[0057] Other cosmetically acceptable carriers suitable for use in this invention may include mineral oils, silicone oils, synthetic or natural esters, and alcohols. Amounts of these materials may range from 0.1 to 50 percent, and preferably, from 0.1 to 30 percent, and most preferably, from 1 to 20 percent by weight of the composition, including all ranges subsumed therein.

[0058] Silicone oils may be divided into the volatile and non-volatile variety. The term "volatile" as used herein refers to those materials which have a measurable vapor pressure at ambient temperature. Volatile silicone oils are preferably chosen from cyclic or linear polydimethylsiloxanes containing from 3 to 9, and preferably, from 4 to 5 silicon atoms. Linear volatile silicone materials generally have viscosities of less than 5 centistokes at 25 degrees centigrade while cyclic materials typically have viscosities of less than 10 centistokes (measured with a Brookfield Viscometer, RV No. 3 spindle at 20 PRM, standardized to mineral oil and at 25 degrees C).

[0059] Nonvolatile silicone oils useful as carrier material include polyalkyl siloxanes, polyalkylaryl siloxanes and polyether siloxane copolymers. The essentially non-volatile polyalkyl siloxanes useful herein include, for example, polydimethylsiloxanes (like dimethicone, including crosspolymers and elastomers) with viscosities of from 5 to 100,000 centistokes at 25 degrees centigrade

[0060] An often-preferred silicone source is a cyclopentasiloxane and dimethiconol solution. Among suitable esters are:

[0061] (1) Esters of fatty acids like isononyl isonanonoate, oleyl myristate, oleyl stearate, and oleyl oleate;

[0062] (2) Ether-esters such as fatty acid esters of ethoxylated fatty alcohols;

[0063] (3) Polyhydric alcohol esters such as 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 monooleate, polypropylene glycol 2000 monostearate, ethoxylated propylene glycol monostearate, glyceryl mono- and di-fatty acid esters, polyglycerol polyfatty esters, ethoxylated glyceryl monostearate, 1 ,3-butylene glycol monostearate, 1 ,3- butylene glycol distearate, polyoxyethylene polyol fatty acid esters, sorbitan fatty acid esters, and polyoxyethylene sorbitan fatty acid esters;

[0064] (4) Wax esters such as beeswax, spermaceti, myristyl myristate, stearyl stearate; and

[0065] (5) Sterol esters, of which soya sterol and cholesterol fatty acid esters are examples thereof.

[0066] Emulsifiers (or surfactants) may be present in the compositions comprising the components of the present invention. Total concentration of the emulsifier, when used, may range from 0.1 to 30 percent, and preferably, from 2 to 20 percent, and most preferably, from 1 to 9 percent by weight of the composition. The emulsifier may be selected from the group consisting of anionic, nonionic, cationic and amphoteric components. Particularly preferred nonionic components are those with a C to C20 fatty alcohol or acid hydrophobe condensed with from 2 to 100 moles of ethylene oxide or propylene oxide per mole of hydrophobe; C2-C10 alkyl phenols condensed with from 2 to 20 moles of alkylene oxide; mono- and di-fatty acid esters of ethylene glycol; fatty acid monoglyceride; sorbitan, nono- and di- C8-C20 fatty acids; and polyoxyethylene sorbitan as well as combinations thereof. Alkyl polyglycosides and saccharide fatty amides (e.g. methyl gluconamides) are also suitable nonionic emulsifiers. Preferred anionic emulsifiers include alkyl ether sulfate and sulfonates, alkyl sulfates and sulfonates, alkylbenzene sulfonates, alkyl and dialkyl sulfosuccinates, C8-C20 acyl isethionates, C8- C20 alkyl ether phosphates, alkylethercarboxylates and combinations thereof.

[0067] Cationic emulsifiers that may be used include, for example, palmitamidopropyltrimonium chloride, distearyldimonium chloride and mixtures thereof. Useful amphoteric emulsifiers include cocoamidopropyl betaine, C12-C20 trialkyl betaines, sodium lauroamphoacetate, and sodium laurodiamphoacetate or a mixture thereof.

[0068] Other generally preferred emulsifiers include glyceryl stearate, glycol stearate, stearamide AMP, PEG-100 stearate, cetyl alcohol as well as emulsifying / thickening additives like hydroxyethylacrylate / sodium acryloyldimethyl taurates copolymer / squalene and mixtures thereof.

[0069] Fragrances, fixatives and abrasives may optionally be used in the compositions that include the components of the present invention. Each of these substances may range from 0.05 to 5 percent, preferably between 0.1 and 3 percent by weight of the composition.

[0070] Quaternary ammonium saltsmay be used in the composition of the present invention such as dihydroxypropyl tri (C1-C3 alkyl or hydroxyalkyl) ammonium salts. These salts may be obtained in a variety of synthetic procedures, most particularly by hydrolysis of chlorohydroxypropyltri (C1-C3 alkyl or hydroxyalkyl) ammonium salts. Ordinarily the CIGS alkyl or hydroxyalkyl constituent on the quaternized ammonium group will be methyl, ethyl, n-propyl, isopropyl, hydroxyethyl, hydroxymethyl and mixtures thereof. Particularly preferred is a trimethyl ammonium group known through INCI nomenclature as a "trimonium" group. A most preferred species is 1 ,2-dihydroxypropyltrimonium chloride, wherein the C1-C3 alkyl is a methyl group. When used, the quaternary ammonium salt makes up from 0.001 to 10 percent, and preferably, from 0.1 to 6 percent, and most preferably, from 0.1 to 3 percent by weight of the skin composition.

[0071] Other preferred moisturizing agents which may be used in the topical skin compositions of the present invention, especially in conjunction with the aforementioned ammonium salts, include substituted urea like hydroxymethyl urea, hydroxyethyl urea, hydroxypropyl urea; bis(hydroxymethyl) urea; bis(hydroxyethyl) urea; bis(hydroxypropyl) urea; N,N'- dihydroxymethyl urea; N,N'-di-hydroxyethyl urea; N,N'-di-hydroxypropyl urea; N,N, N'-tri- hydroxyethyl urea; tetra(hydroxymethyl) urea; tetra(hydroxyethyl) urea; tetra(hydroxypropyl urea; N-methyl, N'-hydroxyethyl urea; N-ethyl-N'-hydroxyethyl urea; N-hydroxypropyl-N'-hydroxyethyl urea and N,N'dimethyl-N-hydroxyethyl urea. Where the term hydroypropyl appears, the meaning is generic for either 3-hydroxy-n-propyl, 2- hydroxy-n-propyl, 3-hydroxy-i-propyl or 2-hydroxy-i-propyl radicals. Most preferred is hydroxyethyl urea. Amounts of substituted urea that may be used in the topical composition of this invention range from 0.01 to 10 percent, or from 0.5 to 8 percent, or from 2 to 6 percent by weight of the composition, when used. Further moisturizing agents for use herein include petrolatum and / or various aquaporin manipulating actives and / or oat kernel flour. Even others include saccharide isomerates like Pentavitin(R) made commercially available from Royal DSM. These agents, when used, typically make up from 0.01 to 6 percent by weight of the composition.

[0072] Non-soap surfactant The present topical skin composition may comprise 0.1 to 40 wt%, more preferably in the range of 0.5 to 38 wt%, further, more preferably in the range of 1 to 35 wt% and most preferably in the range of 2.5 to 30 wt% of non-soap surfactant by weight of the topical skin composition. The compositions of the present invention may contain anionic surfactants, non-ionic surfactants, cationic surfactants or amphoteric surfactants.

[0073] The synthetic anionic detergent active which may be used in the invention may be aliphatic sulfonates, such as a primary alkane (e.g., C8-C22) sulfonate, primary alkane (e.g., C8-C22) disulfonate, C8-C22 alkene sulfonate, C8-C22 hydroxyalkane sulfonate or alkyl glyceryl ether sulfonate (AGS); or aromatic sulfonates such as alkyl benzene sulfonate. The anionic may also be an alkyl sulfate (e.g., C12-C18 alkyl sulfate) or alkyl ether sulfate (including alkyl glyceryl ether sulfates). Among the alkyl ether sulfates are those having the formula:

[0074] RO(CH2CH2O)nSO3M wherein R is an alkyl or alkenyl having 8 to 22 carbons, preferably 12 to 18 carbons, n has an average value of equal to or greater than 1 .0, preferably lesser than 3; and M is a solubilizing cation such as sodium, potassium, ammonium or substituted ammonium. Ammonium and sodium lauryl ether sulfates are preferred.

[0075] The anionic may also be alkyl sulfosuccinates (including mono- and dialkyl, e.g., C6-C22 sulfosuccinates); alkyl and acyl taurates, alkyl and acyl sarcosinates, sulfoacetates, C8-C22 alkyl phosphates, alkyl phosphate esters and alkoxyl alkyl phosphate esters, acyl lactates, C8-C22 monoalkyl succinates and maleates, sulphoacetates, alkyl glucosides and acyl isethionates, and the like.

[0076] Sulfosuccinates may be monoalkyl sulfosuccinates having the formula: R4O2CCH2CH(SO3M)CO2l\ / l; and amide-MEA sulfosuccinates of the formula;

[0077] R4CONHCH2CH2O2CCH2CH(SO3M)CO2l\ / l wherein R4ranges from C8-C22 alkyl or alkenyl (or better yet C8-C20 carbon chains)_and M is a solubilizing cation.

[0078] Sarcosinates are generally indicated by the formula:

[0079] R1CON(CH3)CH2CO2M, wherein R1ranges from C8-C20 alkyl and M is a solubilizing cation.

[0080] Taurates are generally identified by formula: R2CONR3CH2CH2SO3M wherein R2ranges from Cs-C2o alkyl, R3ranges from H or C1-C4 alkyl and M is a solubilizing cation.

[0081] The composition of the present invention may contain Cs-Cis acyl isethionates. These esters are prepared by reaction between alkali metal isethionate with mixed aliphatic carboxylic acids having from 6 to 18 carbon atoms and an iodine value of less than 20. At least 75% of the mixed carboxylic acids have from 12 to 18 carbon atoms and up to 25% have from 6 to 10 carbon atoms.

[0082] The acyl isethionate may be an alkoxylated isethionate such as is described in llardi et al., U.S. Patent No. 5,393,466, titled “Fatty Acid Esters of Polyalkoxylated isethonic acid; issued February 28, 1995; hereby incorporated by reference. This compound has the general formula:

[0083] R C-O(O)-C(X)H-C(Y)H2-(OCH-CH2)m-SO3M+wherein R is an alkyl group having 8 to 18 carbons, m is an integer from 1 to 4, X and Y are hydrogen or an alkyl group having 1 to 4 carbons and M+is a monovalent cation such as, for example, sodium, potassium or ammonium.

[0084] The most preferred anionic surfactants for the compositions of the present invention are selected from the group of sulfonic acids, their salts; alkyl ether sulfates; mixtures and combinations thereof. Most preferable anionic surfactants may include sodium lauryl ether sulfate, its derivatives such as ethylene oxide derivatives and the likes.

[0085] It is preferred that when the composition of the present invention is a cleansing composition, it comprises anionic surfactant in the range of 0.1 to 40 wt%, more preferably in the range of 0.5 to 38 wt%, further more preferably in the range of 1 to 35 wt% and most preferably in the range of 2.5 to 30 wt% of non-soap surfactant by weight of the composition.

[0086] Preferably the cationic surfactants for the purposes of the present invention are, for example, quarternary surfactants, these include, but are not limited to: benzalkonium chloride, alkyl betaine, alkylamidopropyl betaine, alkyl- amidopropylhydroxysultaine alkylamines, alkylimidazoles and ethoxylated amines. It is preferred that when the composition of the present invention is a cleansing composition, it comprises cationic surfactant in the range of 0.1 to 25 wt%, more preferably in the range of 1 to 23 wt%, further, more preferably in the range of 5 to 22wt% and most preferably in the range of 11 to 21wt% by weight of the composition.

[0087] Preferably the amphoteric surfactants for the purposes of the present invention are, for example, acyl I dialkylethylene diamines, for example sodium acylamphoacetate, Cocamidopropyl betaine (CAPB), disodium acyl amphodipropionate, disodium alkylamphodiacetate, sodium acrylamphohydroxypropyl sulfonate, disodium acrylamphodiacetate and sodium acrylamphopropionate, N-alkylamino acids, for example aminopropyl alkylglutamide, alkylaminopropionic acid, sodium alkylimidodipropionate and lauroamphocarboxyglycinate. It is preferred that when the composition of the present invention is a cleansing composition, it comprises amphoteric surfactant in the range 0.1 to 40 wt%, more preferably in the range of 0.5 to 38 wt%, further, more preferably in the range of 1 to 35 wt% and most preferably in the range of 2.5 to 30 wt% of non-soap surfactant by weight of the composition.

[0088] Preferably, the compositions will comprise a combination of anionic synthetic and amphoteric Surfactant (e.g., betaine), especially when anionic comprises 50% or greater of such mixture of synthetics.

[0089] It is preferred that when the composition of the present invention is a cleansing composition, one or more nonionic surfactant(s) may be used in the composition of the present invention as a co-surfactant. Nonionic surfactants are preferably used at levels as low as 0.1 , 0.5 or 1% by wt. and at levels as high as 30, 35 or 40% by wt. The nonionic surfactants which may be used include in particular the reaction products of compounds having a hydrophobic group and a reactive hydrogen atom, for example aliphatic alcohols, acids, amides or alkylphenols with alkylene oxides, especially ethylene oxide either alone or with propylene oxide. Specific nonionic detergent compounds are alkyl (C6-C22) phenols ethylene oxide condensates, the condensation products of aliphatic (Cs-Cis) primary or secondary linear or branched alcohols with ethylene oxide, and products made by condensation of ethylene oxide with the reaction products of propylene oxide and ethylenediamine. Other so-called nonionic detergent compounds include long chain tertiary amine oxides, long chain tertiary phosphine oxides and dialkyl sulphoxide, and the like. Preferred nonionic surfactants include alkylpolyglucosides and carboxylic acid / alcohol ethoxylates having the following structures: a) HOCH2(CH2)n(CH2CH2O)xH or b) HOOC(CH2)m(CH2CH2O)yH; where m, n are independently < 18; and x, y are independently > 1 ; preferably m, n are independently 6 to 18; x, y are independently 1 to 30; c) HOOC(CH2)i-CH=CH-(CH2)k(CH2CH2O)zH; where i, k are independently 5 to 15; and z is independently 5 to 50; preferably i, k are independently 6 to 12; and z is independently 15 to 35.

[0090] The nonionic may also include a sugar amide, such as a polysaccharide amide. Specifically, the surfactant may be one of the lactobionamides described in U.S. Patent No. 5,389,279 to Au et al. titled “Compositions Comprising Nonionic Glycolipid Surfactants issued February 14, 1995; which is hereby incorporated by reference or it may be one of the sugar amides described in Patent No. 5,009,814 to Kelkenberg, titled “Use of N-Poly Hydroxyalkyl Fatty Acid Amides as Thickening Agents for Liquid Aqueous Surfactant Systems” issued April 23, 1991 ; hereby incorporated into the subject application by reference.

[0091] Preferably the non-ionic surfactants for the purposes of the present invention are, for example, Alkanolamides, such as Cocamide MEA DEA / MIPA, esters produced by the esterification of carboxylic acids with ethylene oxide, glycerol, sorbitan or other alcohols, ethers, for example ethoxylated alcohols, ethoxylated lanolin, ethoxylated poly-siloxanes, propoxylated POE ethers and alkyl polyglycosides such as lauryl glucoside, decyl glucoside and cocoglucoside. It is preferred that when the composition of the present invention is a cleansing composition, the composition comprises non-ionic surfactant in the range of 0.1 to 40 wt%, more preferably in the range of 0.5 to 38 wt%, further, more preferably in the range of 1 to 35 wt% and most preferably in the range of 2.5 to 30 wt% of non-soap surfactant by weight of the composition.

[0092] Suitable surfactants that may be used in the compositions disclosed herein may comprise one or more of sodium cocoyl isethionate, Sodium Lauryl Sulfate, disodium lauryl sulfosuccinate, lauryl glucoside, myristyl glucoside, decyl glucoside, sodium sulfate, sodium silicate, Cocamidopropyl betaine, sodium coco sulfate, sodium lauryl sulfate. In one embodiment, the surfactant may comprise sodium cocoyl isethionate. In another embodiment, the surfactant may comprise disodium lauryl sulfosuccinate In a further embodiment, the surfactant may comprise a mixture of lauryl glucoside, myristyl glucoside, sodium sulfate, sodium silicate, and sodium coco sulfate). In yet another embodiment, the surfactant may comprise sodium lauryl sulfate. Suitable surfactants are not limited to the ones enumerated herein and may include other surfactants that are in powder form prior to their incorporation into the composition and are water-soluble to maximize the cleansing potential of the composition.

[0093] It is most preferred that when the composition of the present invention is a cleansing composition, it comprises surfactant selected from the group of anionic, non-ionic and amphoteric surfactants or mixtures thereof.

[0094] Starch

[0095] The composition of the present invention comprises starch in the range of from 0.05 to 5 wt%, more preferably from 0.5 to 4.8 wt% and most preferably from 1 to 4.5 wt% by weight of the composition.

[0096] Starch (a polymer of glucose) is polysaccharide used as a storage polysaccharide in plants, being found in the form of both amylose and the branched amylopectin. In animals, the structurally similar glucose polymer is the more densely branched glycogen, sometimes called "animal starch".

[0097] In another aspect of the present invention starch may be modified starch or native starch. It is most preferred that the starch is native starch.

[0098] Suitable starch materials include natural starch (from corn, wheat, rice, potato, tapioca and the like), pre-gelatinized starch, various physically and chemically modified starch and mixtures thereof. By the term natural starch is meant starch which has not been subject to chemical or physical modification - also known as raw or native starch.

[0099] A preferred starch is natural or native starch from maize (corn), cassava, wheat, potato, rice and other natural sources of it. Raw starch with different ratio of amylose and amylopectin: e.g. maize (25% amylose); waxy maize (0%); high amylose maize (70%); potato (23%); rice (16%); sago (27%); cassava (18%); wheat (30%) pea (35% amylose) and others. The raw starch can be used directly or modified during the process of making the composition such that the starch becomes gelatinized. It is preferred in the composition of the present invention that the starch is pregelatinized native ungelatinized, partially gelatinized or partially hydrolyzed. It is most preferred to use ungelatinized or pre-gelatinized starch. It is further preferred to use starch that is native and not modified.

[0100] Another suitable starch is pre-gelatinized, which is starch that has been gelatinized before it is added as an ingredient in the compositions. Various forms are available that will gel at different temperatures, e.g., cold water dispersible starch.

[0101] It is preferred that the starch is in a suspended state in the liquid composition of the present invention and most preferably in concentrations and form in which it does not act as a thickening agent. It is further preferred that starch is used in its ungelatinized form. It is known in the industry that ungelatinized form of starch does not function as a thickening agent.

[0102] It is preferred that when particle size (D50) of starch ranges between 2-50pm more preferably 4-45pm and most preferably 5-35pm while particle shapes can be smooth, oval, oblate spheroid or polygonal and preferably smooth oval / spheroid. It is most preferred that the native starch of particle size in the range of 2-50pm, more preferably 4-45pm, and most preferably 5-35pm is used. D50 is a particle size measurement indicating diameter at which 50% of particles are smaller and 50% are larger in a distribution. Particle size analysis was done by Malvern particle size analyzer .

[0103] Electrolyte

[0104] The composition of the present invention may comprise an electrolyte. The electrolyte for the purposes of the present invention may include inorganic salts (e.g., sodium chloride, potassium chloride) as well as organic salts (e.g., sodium citrate). In addition to the above-mentioned chloride and citrate salts, other salts include phosphates, sulfates and other halogen ion salts. The counter ions of such salts can be sodium or other monovalent cations as well as di- and trivalent cations.

[0105] The composition may optionally comprise electrolytes. When present the electrolytes may range from 0.01 to 5 wt% more preferably from 0.1 to 4.5 wt% and most preferably from 0.15 to 4.5 wt% by weight of the liquid composition. These wt% values are inclusive of the case when electrolytes function as rheology modifying agents.

[0106] Chelating Agent

[0107] The composition of the present invention comprises a chelating agent. It is preferred that the chelating agent in the composition is present in the range of 0.01 to 3 wt% by weight of the composition, more preferably in the range of 0.02 to 2.5 wt% by weight of the composition, and most preferably in the range of 0.05 to 1.5 wt% by weight of the composition.

[0108] It is preferred that the chelating agent in the composition is present at least 0.01 wt%, more preferably at least 0.02 wt%, and most preferably at least 0.05 wt% by weight of the composition.

[0109] It is preferred that the chelating agent in the composition is present at most 3 wt%, more preferably at most 2.5 wt%, further preferably at most 2 wt% and most preferably at most 1 .5 wt% by weight of the composition.

[0110] The preferred chelating agents are as follows (names followed by their abbreviation in parenthesis):

[0111] Ethylene Diamine Tetra Acetic acid (EDTA), Disodium ethylenediaminetetraacetic acid, Diethylene Triamine Penta Acetic acid (DTPA), Ethane-1 -hydroxy-1 ,1-diphosphonate (EHDP), Ethylene Diamine-N,N'-Disuccinate (EDDS), Nitrilo Triacetic Acid (NTA), Sodium Imino Disuccinate (IDS), Ethylene Glycol-bis-(2-aminoethyl)-N,N,N', N'-Tetra Acetic acid (EGTA), Methyl Glycine Diacetic Acid (MGDA), N-(2-hydroxyethyl) Ethylene Diamine N,N',N'-Thacetic acid) (HEDTA), Ethylene Diamine Tetra Methylene Phosphonic acid (EDTMP), Diethylene Thamine-Penta-Methylene Phosphonic acid (DTPMP), Glutamic acid-N,N-Diacetic Acid (GLDA), Cyclohexane-1 ,2-Diamine- N,N,N',N'-Tetra-Acetic Acid (CDTA), 1 ,3-Propylenediamine Tetra-Acetic Acid (PDTA), Ethylene Diamine Triacetic Acid (EDTA), L-hydroxy Imino Disuccinic acid (L-IDS), Trisodium N-Carboxyethyl Imino Succinate (CEIS), Citric Acid, Sodium Tripolyphosphate (STP), Thethylene Tetramine Hexaacetic Acid (TTHA). Other preferred chelating agents are Trisodium Ethylene Diamine Disuccinate, Tetra-sodium-lmino disuccinate, Glutamic acid-N,N diacetic acid tetra sodium salt, 2-hydroxyethyl iminodiacetic acid, Sodium salt (disodium ethanol diglycinate), Tetrasodium 3-hydroxy-2,2 imino disuccinate, Trisodium methylglycine diacetic acid, L- Aspartate-N,N-diacetic acid tetrasodium salt. The more preferred chelating agents are salt of Ethylene Diamine Tetra Acetic acid (EDTA) and salt of Diethylene Thamine Penta Acetic acid (DTPA). Preferred salts of EDTA are disodium Ethylene Diamine Tetra Acetic acid and tetrasodium Ethylene Diamine Tetra Acetic acid. Preferred salt of DTPA is the pentasodium Diethylene Thamine Penta Acetic acid.

[0112] It is most preferred that the chelating agent suitable for the compositions of the present invention are selected from the group of Ethylene Diamine Tetra Acetic acid (EDTA), or Diethylene Triamine Penta Acetic acid (DTPA), their derivatives and combinations, mixtures thereof. The EDTA derivative is selected from tetrasodium EDTA, trisodium EDTA, disodium EDTA, and combinations thereof. The DTPA derivative is selected from tetrasodium DTPA, trisodium DTPA, disodium DTPA, sodium gluconate, sodium citrate and combinations thereof.

[0113] Preservative

[0114] The composition of the composition of the present invention comprises a preservative. It is preferred that the preservative in the composition is present in the range of 0.01 to 3wt% by weight of the composition, more preferably in the range of 0.02 to 2wt% by weight of the composition, and most preferably in the range of 0.05 to 1 w% by weight of the composition.

[0115] Very useful examples of the preservatives suitable for the compositions of the present inventions, but are not limited to, chlorite components, benzoic acid components, sorbic acid components and mixtures thereof.

[0116] Other preferred preservatives include but not limited to commonly used in cosmetics, such as dibromdicyanobutane (2-bromo-2-bromomethylglutarodinitrile), phenoxyethanol, 3-lod-2-propinylbutylcarbamate, 2-bromo-2-nitro-propane-1 , 3-diol, imidazolidinyl urea, 5-chloro-2-methyl-4-isothiazolin-3-one, 2-chloroacetamide, benzalkonium chloride, sodium benzoate, benzyl alcohol. It is particularly preferred according to the invention if sodium benzoate, sodium salicylate, methyldibromoglutaronitrile, phenoxyethanol and combinations thereof are used as preservatives. pH modulating agent

[0117] The composition of the present invention preferably comprises a pH modulating agent. When pH modulating agent is present in the composition of the present invention, it is present in the range of from 0.01 to 1wt%, preferably 0.05 to 0.8 wt%, more preferably 0.08 to 0.7 wt% and most preferably 0.09 to 0.6 wt% by weight of the composition of the present invention.

[0118] The pH modulating agent is an ingredient which is responsible to modulate the existing pH of the composition.

[0119] The pH modulating agent is selected so as to maintain the pH of the composition in the range of 4 to 7 more preferably 4.5 to 7 and most preferably 5.0 to 7.

[0120] The pH modulating agent for the present invention may be an acid or a salt. When the pH modulating agent is an acid such as acetic acid, citric acid, lactic acid, gluconic acid, glycolic acid, malic acid, mandelic acid, tartaric acid or amino acids or the likes.

[0121] When the pH modulating agent is a salt may be sodium bicarbonate, potassium carbonate, calcium hydroxide, potassium hydroxide, potassium bicarbonate, sodium carbonate, sodium hydroxide or a combination thereof. In various embodiments, the pH modulating agent is sodium bicarbonate.

[0122] Water

[0123] When water is present, the composition of the present invention comprises it is present in the range of 1 to 90 wt% water, more preferably 5 to 85 wt% and and most preferably from 10 to 70 wt% by weight of the composition depending on the format of the composition. pH It is preferred that the pH of the compositions of the present invention ranges from 4 to 7 more preferably 4.5 to 7.

[0124] The pH of a solution is expressed as the negative logarithm of the hydrogen ion activity which is related to a millivolt potential of the pH indicating electrode. This electrode is calibrated with standard buffer mixtures whose pH values lie on either side (acidic & basic) of that of the solution which is being measured. About 1 gm of the composition is weighed in a beaker & made up to 100 grams by adding distilled water. 25°C and pH is measured.

[0125] Rheology modifying agent

[0126] The composition of the present invention comprises a rheology modifying agent, which means an agent that affects the rheology of the topical skin composition. These agents may be thickening agents such as polymers, suspending polymers and may include electrolyte salts which may function to modify the rheology of the liquid composition. The composition of the present invention may comprise rheology modifying agent in the range of 0.01 to 10 wt%, more preferably 0.1 to 9 wt% and most preferably in the range of 0.5 to 8.5 wt% by weight of the composition of the present invention.

[0127] Thickening agents may be water soluble / dispersible polymers. These polymers can be cationic, anionic, amphoteric or nonionic types with molecular weights higher than 100,000 Dalton. They are known to increase the viscosity and stability of liquid cleanser compositions, to enhance in-use and after-use skin sensory feel, and to enhance lather creaminess and lather stability. Amount of the polymers, when present, may range from 0.01 to 10% by weight of the composition. It is preferred that the thickening polymers or suspending polymers are present in the range of 0.01 to 10 wt%, more preferably 0.05 to 9 wt% and most preferably in the range of 0.1 to 8.5 wt% by weight of the composition of the present invention.

[0128] Examples of water soluble / or dispersible polymers and rheology modifiers include the carbohydrate gums such as cellulose gum, microcrystalline cellulose, cellulose gel, hydroxyethyl cellulose, hydroxypropyl cellulose, sodium carboxymethylcellulose, methyl cellulose, ethyl cellulose, guar gum, gum karaya, gum tragacanth, gum arabic, gum acacia, gum agar, xanthan gum and mixtures thereof; alkali swellable acrylic polymers such as crosslinked acrylate copolymers, polyacrylate crosspolymers; polyacrylate crosspolymers (Sepimax zen), lightly cross-linked acrylate copolymer (Carbopol Aqa SF01), hydroxypropyl methylcellulose (and) cellulose gum (and) xanthan gum (TEXTURE PURE SA ), Amaze XT(De hydroxanthan gum); emulsion polymers such as Aculyn® 28, cationic polymer such as modified polysaccharides including cationic guar such as Jaguar® C13S, Jaguar® C17, or Jaguar® C16; cationic modified cellulose such as UCARE® Polymer JR 30 or JR 40; N-Hance® 3000, N-Hance® 3196, N-Hance® GPX 215 or N-Hance® GPX 196 from Hercules; synthetic cationic polymer such as Merquat® 100, Merquat® 280, Merquat® 281 and Merquat® 550 sold by Nalco;; cationic galactomannans such as Galactasol® 800 series by Henkel, Inc.; Quadrosoft® LM-200; and Polyquaternium-24®. Also suitable are high molecular weight polyethylene glycols such as Polyox® WSR-205 (PEG 14M), Polyox® WSR-N-60K (PEG 45), and Polyox® WSR-301 (PEG 90M). Other cationic cellulose derivatives are cationic cationic guar gum derivatives.

[0129] For the purpose of this invention, the rheology modifying agent is different than starch.

[0130] Acrylic polymer

[0131] The composition of the invention includes a polymer of the acrylic / acrylate class as a thickening agent, suspending or a rheology modifying agent. It is preferred that in the composition of the present invention, the rheology modifying agent is a thickening polymer. It is most preferred that the rheology modifying agent is an acrylic polymer.

[0132] The composition of the invention includes a polymer of the acrylic / acrylate class. The polymer may be hydrophobically modified, a homo polymer, a copolymer, or a cross polymer which may be an acrylic polymer, a partially neutralized acrylic polymer or an acrylic polymer. Commercially available polymer of these classes which may be used include Carbopol Aqua SF polymer from Lubrizol, Carbopol SC-200 polymer also from Lubrizol, or Acusol 445 G- polymer from Dow.

[0133] Suitable agents include acrylate containing homo and copolymers such as the crosslinked poly acrylates available under the CARBOPOL trade name, the hydrophobically modified cross linked polyacrylates available under the AQUA trade name, and the PEMULEN trade name (all sold by Lubrizol Company, Wickliffe, Ohio), the alkali swellable acrylic latex polymers sold by Rohm and Haas (Philadelphia, Pa.) under the ACLISOL or ACLILYN trade names and Synthalen 400 (available from 3V located in Hackensack, N.J.).

[0134] The acrylic polymer is included in 0.05 to 5%, preferably from 0.1 to 4.8%, furthermore preferably 0.5 to 4.5% by weight of the composition.

[0135] The electrolyte as mentioned supra may act as rheology modifying agent.

[0136] Soap

[0137] The liquid composition of the present invention may comprise about 0.1 to 10 wt% of soap, more preferably 0.5 to 9 wt% and most preferably about 1 to 8wt% of soap by weight of the composition. It is preferable that the composition has 1.5 to 7 wt% of total fatty matter (TFM).

[0138] The term soap means salts of fatty acids in which the accompanying cation may be an alkali metal, alkaline earth metal or ammonium ion, preferably an alkali metal. Preferably, the cation is sodium or potassium. The soap may be saturated or unsaturated and it depends on the nature of the corresponding fatty acid and / or oil used for saponification.

[0139] Emollients

[0140] The term “emollient” is defined as a substance which softens or improves the elasticity, appearance, and youthfulness of the skin by either increasing its water content, adding, or replacing lipids and other skin nutrients; or both, and keeps it soft by retarding the decrease of its water content.

[0141] Moisturizers that also are Humectants such as polyhydric alcohols, e.g. glycerin and propylene glycol, and the like; and polyols such as the polyethylene glycols such as Polyox WSR N-60K (PEG-45M) and the like are used in a preferred embodiment of the invention. Humectants are preferably used at a minimum of 0.5, 2.5 or 5 % by wt. and a maximum of 15, 20 or 25% by wt.

[0142] Hydrophobic emollients are used in a preferred embodiment of the invention. Preferred are hydrophobic emollient(s) with weight average particle sizes below either 1000 or 500 microns in diameter and are defined herein as “finely dispersed oils”. These emollients are preferably used at a minimum of 0.5, 2.5 or 5 % by wt. and a maximum of 15, 20 or 25% by wt.

[0143] Suitable hydrophobic emollients include but are not limited to the following:

[0144] (a) silicone oils and modifications thereof such as linear and cyclic polydimethylsiloxanes; amino, alkyl, alkylaryl, and aryl silicone oils;

[0145] (b) fats and oils including natural fats and oils (triglycerides) such as jojoba, soybean, sunflower, rice bran, avocado, almond, olive, sesame, persic, castor, coconut, mink oils; moringa oil, cacao fat; beef tallow, lard; hardened oils obtained by hydrogenating the aforementioned oils; and synthetic mono, di and triglycerides such as myristic acid glyceride and 2-ethylhexanoic acid glyceride;

[0146] (c) waxes such as carnauba, spermaceti, beeswax, lanolin, and derivatives thereof;

[0147] (d) hydrophobic plant extracts;

[0148] (e) hydrocarbons such as petrolatum, polybutene, liquid paraffins, microcrystalline wax, ceresin, squalene, pristan and mineral oil;

[0149] (f) higher alcohols such as lauryl, cetyl, stearyl, oleyl, behenyl, cholesterol and 2-hexydecanol alcohol;

[0150] (g) esters such as cetyl octanoate, myristyl lactate, cetyl lactate, isopropyl myristate, myristyl myristate, isopropyl palmitate, isopropyl adipate, butyl stearate, decyl oleate, cholesterol isostearate, glycerol monostearate, glycerol distearate, glycerol tristearate, alkyl lactate, alkyl citrate and alkyl tartrate;

[0151] (h) essential oils and extracts thereof such as mentha, jasmine, camphor, white cedar, bitter orange peel, ryu, turpentine, cinnamon, bergamot, citrus unshiu, calamus, pine, lavender, bay, clove, hiba, eucalyptus, lemon, starflower, thyme, peppermint, rose, sage, sesame, ginger, basil, juniper, lemon grass, rosemary, rosewood, avocado, grape, grapeseed, myrrh, cucumber, watercress, calendula, elder flower, geranium, linden blossom, amaranth, seaweed, ginko, ginseng, carrot, guarana, tea tree, jojoba, comfrey, oatmeal, cocoa, neroli, vanilla, green tea, penny royal, aloe vera, menthol, cineole, eugenol, citral, Citronelle, borneol, linalool, geraniol, evening primrose, camphor, thymol, spirantol, penene, limonene and terpenoid oils; (i) mixtures of any of the foregoing components, and the like.

[0152] Benefit Agents

[0153] In addition to the ingredients described earlier, preferred embodiments of the compositions may also include other optional and preferred ingredients for their known benefits. The type and content will largely depend on the nature and type of composition as well as general principles of composition science.

[0154] Other optional compositions include one or more skin benefit agents. The term "skin benefit agent" is defined as a substance which softens or improves the elasticity, appearance, and youthfulness of the skin (stratum corneum) by either increasing its water content, adding, or replacing lipids and other skin nutrients; or both, and keeps it soft by retarding the decrease of its water content. Included among the suitable skin benefit agents are emollients, including, for example, hydrophobic emollients, hydrophilic emollients, or blends thereof. Water-soluble skin benefit agents may optionally be formulated into the topical skin compositions of the invention. A variety of water-soluble skin benefit agents can be used and the level can be from 0 to 50% but preferably from 1 to 30% by weight of the composition. These materials include, but are not limited to, polyhydroxy alcohols. Preferred water soluble skin benefit agents are glycerin, sorbitol and polyethylene glycol.

[0155] Water-insoluble skin benefit agents may also be formulated into the compositions as conditioners and moisturizers. Examples include silicone oils; hydrocarbons such as liquid paraffins, petrolatum, microcrystalline wax, and mineral oil; and vegetable triglycerides such as sunflower seed and cottonseed oils.

[0156] Preservatives can also be added into the compositions to protect against the growth of potentially harmful microorganisms. Suitable traditional preservatives for compositions of this invention are alkyl esters of para-hydroxybenzoic acid. Other preservatives which have more recently come into use include hydantoin derivatives, propionate salts, and a variety of quaternary ammonium compounds. Particularly preferred preservatives are phenoxyethanol, methyl paraben, propyl paraben, imidazolidinyl urea, sodium dehydroacetate and benzyl alcohol. The preservatives should be selected having regard for the use of the composition and possible incompatibility between the preservatives and other ingredients. Preservatives are preferably employed in amounts ranging from 0.01 % to 2% by weight of the composition.

[0157] A variety of other optional materials may be formulated into the compositions. These may include: antimicrobials; scrub and exfoliating particles such as polyethylene and silica or alumina; cooling agents such as menthol; skin calming agents such as aloe vera; and colorants.

[0158] Shower gel or Body wash may contain particles that are greater than 50 pm in average diameter that help remove dry skin. Not being bound by theory, the degree of exfoliation depends on the size and morphology of the particles. Large and rough particles are usually very harsh and irritating. Very small particles may not serve as effective exfoliants. Such exfoliants used in the art include natural minerals such as silica, talc, calcite, pumice, tricalcium phosphate; seeds such as rice, apricot seeds, etc; crushed shells such as almond and walnut shells; oatmeal; polymers such as polyethylene and polypropylene beads, flower petals and leaves; microcrystalline wax beads; jojoba ester beads, and the like. These exfoliants come in a variety of particle sizes and morphology ranging from micron sized to a few mm. They also have a range of hardness. Some examples are talc, calcite, pumice, walnut shells, dolomite and polyethylene.

[0159] Advantageously, active agents other than skin conditioning agents defined above may be added to the composition. These active ingredients may be advantageously selected from bactericides, vitamins, anti-acne actives; anti-wrinkle, anti-skin atrophy and skin repair actives; skin barrier repair actives; non-steroidal cosmetic soothing actives; artificial tanning agents and accelerators; skin lightening actives; sunscreen actives; sebum stimulators; sebum inhibitors; anti-oxidants; protease inhibitors; skin tightening agents; anti-itch ingredients; hair growth inhibitors; 5-alpha reductase inhibitors; desquamating enzyme enhancers; anti-glycation agents; or mixtures thereof; and the like.

[0160] These active agents may be selected from water-soluble active agents, oil soluble active agents, pharmaceutically acceptable salts and mixtures thereof. The term "active agent" as used herein, means personal care actives which can be used to deliver a benefit to the skin and / or hair and which generally are not used to confer a skin conditioning benefit, such are delivered by emollients as defined above. The term "safe and effective amount" as used herein, means an amount of active agent high enough to modify the condition to be treated or to deliver the desired skin care benefit, but low enough to avoid serious side effects. The term "benefit," as used herein, means the therapeutic, prophylactic, and / or chronic benefits associated with treating a particular condition with one or more of the active agents described herein. What is a safe and effective amount of the active agent(s) will vary with the specific active agent, the ability of the active to penetrate through the skin, the age, health condition, and skin condition of the user, and other like factors.

[0161] A wide variety of active agent ingredients are useful for the compositions of the present inventions and include those selected from anti-acne actives, anti-wrinkle and anti-skin atrophy actives, skin barrier repair aids, cosmetic soothing aids, topical anesthetics, artificial tanning agents and accelerators, skin lightening actives, antimicrobial and antifungal actives, sunscreen actives, sebum stimulators, sebum inhibitors, antiglycation actives and mixtures thereof and the like.

[0162] Anti-acne actives can be effective in treating acne vulgaris, a chronic disorder of the pilosebaceous follicles. Non limiting examples of useful anti-acne actives include the keratolytics such as salicylic acid (o-hydroxybenzoic acid), derivatives of salicylic acid such as 5-octanoyl salicylic acid and 4 methoxysalicylic acid, and resorcinol; retinoids such as retinoic acid and its derivatives (e.g., cis and trans); sulfur-containing D and L amino acids and their derivatives and salts, particularly their N-acetyl derivatives, mixtures thereof and the like.

[0163] Skin barrier repair actives are those skin care actives which can help repair and replenish the natural moisture barrier function of the epidermis. Non limiting examples of skin barrier repair actives include lipids such as cholesterol, ceramides, sucrose esters and pseudo-ceramides as described in European Patent Specification No. 556,957; ascorbic acid; biotin; biotin esters; phospholipids, mixtures thereof, and the like.

[0164] Artificial tanning actives can help in simulating a natural sun tan by increasing melanin in the skin or by producing the appearance of increased melanin in the skin. Non limiting examples of artificial tanning agents and accelerators include dihydroxyacetaone; tyrosine; tyrosine esters such as ethyl tyrosinate and glucose tyrosinate; mixtures thereof, and the like. Skin lightening actives can actually decrease the amount of melanin in the skin or provide such an effect by other mechanisms. Non limiting examples of skin lightening actives useful herein include aloe extract, alpha-glyceryl-L-ascorbic acid, aminotyrosine, ammonium lactate, glycolic acid, hydroquinone, 4 hydroxyanisole, 4 alklyl resorcinols including ER, BR, HR, phenethyl resorcinol; thiamidol; mixtures thereof, and the like;

[0165] Vitamin C and its oil and water soluble derivatives; Vitamin E and its oil and water soluble derivatives; Vitamin B3, Vitamin B series, hydroxy fatty acids including 12, hydroxystearic, 10 -hydroxy stearic, 10-hydroxy palmitic; and mixtures.

[0166] Also useful are sunscreen actives. Non limiting examples of sunscreens which are useful in the compositions of the present invention are those selected from the group consisting of octyl methoxyl cinnamate (Parsol MCX) and butyl methoxy benzoylmethane (Parsol 1789), 2-ethylhexyl p-methoxycinnamate, 2-ethylhexyl N,N-dimethyl-p-aminobenzoate, p-aminobenzoic acid, 2-phenylbenzimidazole-5sulfonic acid, oxybenzone, mixtures thereof, and the like.

[0167] Also useful are protease inhibitors. Protease inhibitors can be divided into two general classes: the proteinases and the peptidases. Proteinases act on specific interior peptide bonds of proteins and peptidases act on peptide bonds adjacent to a free amino or carboxyl group on the end of a protein and thus cleave the protein from the outside. The protease inhibitors suitable for use in the inventive personal toilet bar compositions include, but are not limited to, proteinases such as serine proteases, metalloproteases, cysteine proteases, and aspartyl protease, and peptidases, such as carboxypepidases, dipeptidases and aminopepidases, mixtures thereof and the like.

[0168] Other useful active ingredients are skin tightening agents. Non-limiting examples of skin tightening agents which are useful in the compositions of the present invention include monomers which can bind a polymer to the skin such as (meth)acrylic acid and a hydrophobic monomer comprised of long chain alkyl (meth)acrylates, mixtures thereof, and the like.

[0169] Active ingredients in the inventive personal toilet bar compositions may also include antiitch ingredients. Suitable examples of anti-itch ingredients which are useful in the compositions of the present invention include hydrocortisone, methdilizine and trimeprazine, mixtures thereof, and the like.

[0170] Non limiting examples of hair growth inhibitors which are useful in the inventive personal toilet bar compositions include 17 beta estradiol, anti-angiogenic steroids, curcuma extract, cycloxygenase inhibitors, evening primrose oil, linoleic acid and the like. Suitable 5-alpha reductase inhibitors such as ethynylestradiol and, genistine mixtures thereof, and the like.

[0171] Advantageously cationic skin feel agent(s) or polymer(s) are used from about 0.01 , 0.1 or 0.2% by wt. to about 1 , 1.5 or 2.0% by wt.

[0172] Cationic cellulose is available from Amerchol Corp. (Edison, N.J., USA) in their Polymer JR® and LR® series of polymers, as salts of hydroxyethyl cellulose reacted with trimethyl ammonium substituted epoxide, referred to in the industry (CTFA) as Polyquaternium® 10. Another type of cationic cellulose includes the polymeric quaternary ammonium salts of hydroxyethyl cellulose reacted with lauryl dimethyl ammonium-substituted epoxide, referred to in the industry (CTFA) as Polyquaternium® 24. These materials are available from Amerchol Corp. (Edison, N.J., USA) under the tradename Polymer LM-200®, and quaternary ammonium compounds such as alkyldimethylammonium halogenides.

[0173] A particularly suitable type of cationic polysaccharide polymer that can be used is a cationic guar gum derivative, such as guar hydroxypropyltrimonium chloride (Commercially available from Rhone-Poulenc in their JAGUAR® trademark series). Examples are JAGUAR® C13S, which has a low degree of substitution of the cationic groups and high viscosity, JAGUAR® C15, having a moderate degree of substitution and a low viscosity, JAGUAR® C17 (high degree of substitution, high viscosity), JAGUAR® C16, which is a hydroxypropylated cationic guar derivative containing a low level of substituent groups as well as cationic quaternary ammonium groups, and JAGUAR® 162 which is a high transparency, medium viscosity guar having a low degree of substitution.

[0174] Particularly preferred cationic polymers are JAGUAR® C13S, JAGUAR® C15, JAGUAR® C17 and JAGUAR® C16 and JAGUAR® C162, especially JAGUAR® C13S. Other cationic skin feel agents known in the art may be used provided that they are compatible with the inventive composition.

[0175] Other preferred cationic compounds that are useful in the present invention include amido quaternary ammonium compounds such as quaternary ammonium propionate and lactate salts, and quaternary ammonium hydrolyzates of silk or wheat protein, and the like. Many of these compounds can be obtained as the Mackine® Amido Functional Amines, Mackalene® Amido functional Tertiary Amine Salts, and Mackpro® cationic protein hydrolysates from the McIntyre Group Ltd. (University Park, III.).

[0176] In embodiments having a hydrolyzed protein conditioning agent, the average molecular weight of the hydrolyzed protein is preferably about 2500. Preferably 90% of the hydrolyzed protein is between a molecular weight of about 1500 to about 3500. In a preferred embodiment, MACKPRO® WWP (i.e. wheat germ amido dimethylamine hydrolyzed wheat protein) is added at a concentration of 0.1% (as is) in the bar.

[0177] Use

[0178] The present invention provides use of acrylic polymer and starch according to the first aspect, in a liquid composition for providing a moisturizing effect.

[0179] The present invention provides use of 0.05 to 30 wt% starch, based on the weight of the resulting topical composition, in a topical composition comprising a cosmetically acceptable vehicle selected from water, oil, water thickened with a polymer, an emulsion and a silicone system; wherein particulate morphology of the starch is round or oval, for providing skin clarity and / or glow and radiance, as compared to the composition without starch. It is preferred that in the comparison composition does not have starch in the range of 0.05 to 30 wt% starch.

[0180] The present invention provides use of 0.05 to 30 wt% starch, based on the weight of the resulting topical composition, in a topical composition comprising a cosmetically acceptable vehicle selected from water, oil, water thickened with a polymer, an emulsion and a silicone system; wherein particulate morphology of the starch of the composition is round or oval, for providing better moisturization, as compared to the composition without starch. It is preferred that in the comparison composition does not have starch in the range of 0.05 to 30 wt% starch. The present invention provides use of 0.05 to 30 wt% starch, based on the weight of the resulting topical composition, in a topical composition comprising a cosmetically acceptable vehicle selected from water, oil, water thickened with a polymer, an emulsion and a silicone system; wherein particulate morphology of the starch of the composition is round or oval, for providing a gentle and mild after-feel on site of application, as compared to the composition without starch. It is preferred that in the comparison composition does not have starch in the range of 0.05 to 30 wt% starch.

[0181] The present invention provides use of 0.05 to 30 wt% starch, based on the weight of the resulting topical composition, in a topical composition comprising a cosmetically acceptable vehicle selected from water, oil, water thickened with a polymer, an emulsion and a silicone system; wherein particulate morphology of the starch of the composition is round or oval, for providing a skin clarity and / or glow on site of application, as compared to the composition without starch. It is preferred that in the comparison composition does not have starch in the range of 0.05 to 30 wt% starch.

[0182] It is preferred that the particle size of the starch is in the range of 2 to 50pm.

[0183] Method

[0184] When the composition of the present invention is a cleansing topical composition, it is prepared using the process comprising steps of: i. addition of surfactant in cosmetically acceptable vehicle such as water to form a solution; ii. dispersal of rheology modifying agent such as acrylic polymer in surfactant water solution followed by neutralization. iii. addition of starch slurry with stirring to obtain the cleansing composition according to the present invention.

[0185] The viscosity of the final cleansing composition may be adjusted by addition of rheology modifying agents such as electrolytes.

[0186] A pH modulating agent is added in the method of the present invention at an appropriate step according to the format of the composition.

[0187] The compositions of the present invention may be prepared in different formats such as creams, lotions, gels and various other formats by established industry methodologies. While this invention has been described with respect to particular embodiments thereof, it is apparent that numerous other forms and modifications of the invention will be obvious to those skilled in the art. The appended claims and this invention generally should be construed to cover all such obvious forms and modifications which are within the true spirit and scope of the present invention.

[0188] Examples

[0189] The invention will now be demonstrated with examples. The examples are for purpose of illustration only and do not limit the scope of claims in any manner.

[0190] Example 1

[0191] Preparation of compositions- - cleansing composition format

[0192] The compositions for comparative study were made by solubilizing the chelating agent in water medium followed by addition of surfactants like PAS / CMEA at about 70 to 80°C until solubilized under stirring, followed further by addition of surfactants like SLES / CAPB / Decyl Glucoside / Cocamide mono-ethanol amine at temperature less than 60°C. The acrylic polymer was then dispersed in water followed by neutralization. Preservative, colourants, fragrance and other skin benefit aids were added. Starch was added pre dispersed in glycerine slurry under rapid stirring and final adjustment of viscosity with electrolytes.

[0193] Starch was sourced from AGRANA STARKE- STARKINA NATURAL which is 100 % native potato starch, of EU-origin, typically soured from Austria and the Czech Republic. Maize was also sourced from AGRANA STARKE- MAISITA 9040- 100 % native maize starch, of EU-origin, typically sourced from Austria, Slovakia and Hungary. Rice was sourced from AGRANA STARKE- REISITA NATURAL- 100 % native rice starch.

[0194] The compositions P1 to P8 were prepared according to the above process with variation in one or more ingredients as mentioned in Table 1. P0 to P2 were taken as control compositions having no starch, but with different concentration of non-soap surfactant. In P3 and P4 had both starch varied in morphology as being of polygonal shape sourced from rice and maize respectively. P5 had polygonal morphology wherein starch was hydrophobically modified starch of maize. P6 to P8 compositions were prepared according to the first aspect of the present invention and within the scope of the present invention. P6 and P7 varied in the starch concentration while keeping the source of the starch same, that is of potato with morphology of starch particles as round / oval and P8 differed in the starch source as barley while having the same morphology of starch particles as round / oval.

[0195] DYNAMIC FOAM ANALYSIS: Dynamic Foam analyser DFA-100 was used to measure the foamability of liquids. Foam was generated via air purging from the bottom while high resolution camera records the video of foam generation. Prism was fixed on the cylinder which helps to identify foam edges. Data was recorded on video and analysed using a software. Measurement Parameters being ‘concentration of measurement sample’: 6.25 % solution; Sample volume for foam measurements: 50 ml; Column type: CY4572 - 40 mm prism; Height illumination: Infrared - A = 850 nm; Foaming method: Stirrer SR4501 ; Stirring speed: 4000 rpm. Drainage half life time, measured in seconds (s) is time at which the FLS (Foam liquid stability) has reduced to 50 % of its initial value. Higher the value higher the foam stability. The drainage half-life time (t FLS 50%) marks the time it takes 50% of the liquid to drain out of the foam structure. Thus, the foam system has better stability when the t FLS SO% value is higher indicating that the foam can hold more liquid within the lamella film and minimize liquid drainage out of the foam. Microstructure of starch was determined by scanning electron microscopic technique. From the high- resolution images of starch morphology, particle size was measured.

[0196] Table 1 :

[0197] It is clear from the data of Table 1 that the drainage half life time of the compositions of the present invention P6 to P8 have 15% or higher foam stability as compared to the compositions PO to P2 while P3 to P5 wherein starch particle morphology is not round or oval has close to 4% higher drainage half-life time compared to PO to P2.

[0198] Example 2

[0199] Home Use Tests (HUT) studies: Blind Monadic HUT was done with 7 Days product placement followed by telephonic interviews. In-home, Blind Product Test was done in opaque white bottles among Female aged 18-45 years (18-30: 40%, 31-45: 60%), bodywash category users, using bodywash at least 4 times a week.

[0200] The control composition PO was compared with composition P6 of the present invention. Table 2 provides mean scores on the scale from 1 to 7 (Very poor -1 - 7-Excellent) basis the benefit parameters of overall score, gentleness and mildness and moisturizing benefit.

[0201] Table 2

[0202] It is seen from the data of Table 2 that basis the benefit parameters, P6 containing native starch of potato origin and round / oval particle morphology in combination performs superior (There is a significant improvement at 90 or 95% level of confidence in a 2 tailed T test) to the control PO on all the given parameters 1 to 3. P5 containing hydrophobically modified starch of maize origin and polygonal particle morphology in combination with polymer performs parity (No significant improvement at 90 or 95% level of confidence in a 2 tailed T test) to the control PO on all the given parameters 1 to 3.

[0203] Example 3

[0204] Panel evaluation was done with 14 trained panellists to evaluate the Liquid - to understand an expert point of view. Each product was fully randomized and evaluated twice across panellists. The study followed the Liquid Sensory Evaluation protocol under controlled settings where asll assessments were performed using soft water 4.5° FH ± 0.5° FH and water temperature 30 ± 2°C followed by data analysis by QDA ANOVA + TukeyKramer HSD Level of significance (QDA) in Software: Senpaq (QDA).

[0205] Table 3

[0206] The data of Table 3 shows that the composition P6 of the first aspect has a positive response from panellists based on parameters such as quick rinse off, more silky smooth feel 5 minutes after use, faster and creamier lather as compared to control PO composition without starch.

[0207] Example 4: Clinical study method and protocol:

[0208] GLOW & RADIANCE - COMPOSITE GLOW SCALE

[0209] Glow & Radiance is assessed based on the method as provided in (Kumari R et al. Int J Res Dermatol. 2022 Nov;8(6):593-600). A double blind randomised clinical study was performed under dermatologist supervision and evaluated by a dermatologist. This included panellists from Fitzpatrick scale 3 to 6 and with dark spot due to PIH as per dermatologist discretion. Panellists were provided a wash off period to acclimatise them, and the study duration extended from a minimum of 1 2 weeks to a maximum of 6 weeks with clinical assessments performed at week 1 , week 2 and week 4 post regular use of the product. Dermatologists used in this study were trained and validated for the evaluation skills. MSCR single parameter glow measure skin glow and radiance and is scaled between 0 - 9 where a score of 0 indicates No glow, Score of 1-3, 4-6 and 7-9 indicates mild, moderate, glowing and radiant skin respectively.

[0210] Skin Clarity - The subjects reported for assessment were instructed to wash their face and forearm with water and acclimatized at the testing center. Post acclimatization the subjects are assessed by trained dermatologists using Skin Clarity Scale, which is based on the reflectance / luminance assessment. The skin clarity is scaled between 1- 5 where lower value indicates unclear skin and higher value indicates clear skin. Skin clarity is a result of phenotypic changes that is mostly marginal and difficult to perceive, statistically significant increase in the skin clarity score observed post product use is an indication of improvement in skin clarity.

[0211] Table 2

[0212] Compositions P1 and P6 were compared by dermatological assessment and image analysis to give a mean CFB - change from baseline value which are analyzed using appropriate statistical tools for glow and radiance, and skin clarity. It was observed that increase in respective parameter values is statistically significant for P6 as compared with P1 at a confidence limit of 95%.

Claims

Claims:

1. A topical skin composition comprising, i. 0.05 to 30 wt% starch; and ii. a cosmetically acceptable vehicle selected from water, oil, water thickened with a polymer, an emulsion and a silicone system; wherein the starch particles have round or oval morphology.

2. A composition according to claim 1 , wherein the starch is native starch.

3. A composition according to claim 1 or 2, wherein starch is pregelatinized, native ungelatinized, partially gelatinized or partially hydrolyzed.

4. A composition according to claim 1 or 3, wherein particle size of the starch is in the range of from 2 to 50pm.

5. A composition according to anyone of the preceding claims from 1 to 4, wherein the composition comprises a rheology modifying agent selected from group consisting of thickening polymer, suspending polymer, an electrolyte salt and mixtures thereof.

6. A composition according to claim 5, wherein the polymer comprises an acrylic polymer.

7. A composition according to anyone of the preceding claims from 1 to 6, wherein the composition comprises a non-soap surfactant is selected from the group consisting of anionic surfactant, amphoteric surfactant, zwitterionic surfactant, non-ionic surfactant and mixtures thereof.

8. A composition according to anyone of the preceding claims from 1 to 7, wherein the composition comprises 0.1 to 3 wt% of chelating agent.

9. A composition according to claim 8, wherein the chelating agent is selected from the from group consisting of Ethylene Diamine Tetra Acetic acid (EDTA), or Diethylene Triamine Penta Acetic acid (DTPA), sodium gluconate, sodium citrate and mixtures thereof.

10. A composition according to anyone of the preceding claims from 1 to 9, wherein the composition comprises a preservative in the range of from 0.1 to 5 wt% by weight of the composition.

11. A composition according to claim 10, wherein the preservative is selected from sodium benzoate, benzoic acid, potassium sorbate, methylparaben, ethylparaben, propylparaben, butylparaben and heptyl paraben, combinations or mixtures thereof.

12. Use of 0.05 to 30 wt% starch, based on the weight of the resulting topical composition, in a topical composition comprising a cosmetically acceptable vehicle selected from water, oil, water thickened with a polymer, an emulsion and a silicone system; wherein particulate morphology of the starch is round or oval, for providing skin clarity and / or glow and radiance, as compared to the composition without starch.

13. Use of 0.05 to 30 wt% starch, based on the weight of the resulting topical composition, in a topical composition comprising a cosmetically acceptable vehicle selected from water, oil, water thickened with a polymer, an emulsion and a silicone system; wherein particulate morphology of the starch of the composition is round or oval, for providing better moisturization, as compared to the composition without starch.

14. Use of 0.05 to 30 wt% starch, based on the weight of the resulting topical composition, in a topical composition comprising a cosmetically acceptable vehicle selected from water, oil, water thickened with a polymer, an emulsion and a silicone system; wherein particulate morphology of the starch of the composition is round or oval, for providing a gentle and mild after-feel on site of application, as compared to the composition without starch.

15. Use of starch according to anyone of the preceding claims from 12 to 14, wherein particle size of the starch is in the range of 2 to 50pm.

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