Eye cream formulation

Abstract

Various examples disclosed relate to an eye cream formulation including a first polyacrylate and a second polyacrylate at a weight ratio of about 3: 1. The present disclosure includes a formulation for an eye cream with a gelling agent containing the first polyacrylate and a second polyacrylate at a weight ratio of about 3 : 1 in addition to a surfactant system, a powder, and a pigment. The eye cream formulation has good spreadability.

Description

EYE CREAM FORMULATIONCLAIM OF PRIORITY

[0001] This patent application claims the benefit of priority to French Application Serial No. FR2301543, filed February 20, 2023, which is incorporated by reference herein in its entirety.BACKGROUND

[0002] Cosmetic formulations can be used to deliver any variety of beneficial effects to a user. Often the beneficial effect is provided by an active component. The ability to increase the diversity and amount of active component can increase the utility of the cosmetic formulation.

[0003] The cosmetics industry has increasing focus on skincare products and formulations. Various skincare products have been developed to address concerns of aging skin, wrinkles, elasticity, dryness, dullness, and other concerns. In particular, various eye creams and serums have been developed to address skincare concerns surround the eye area, such as dark circles, crow’s feet, overall dullness and loss of elasticity with age, among other concerns. In some cases, various skincare creams and serums are created as a set, so as to help the consumer prepare a holistic skincare routine.SUMMARY OF THE DISCLOSURE

[0004] According to the instant invention, a formulation for a contouring and moisturizing eye cream includes a film forming system including a gelling mixture comprising a first sodium polyacrylate homopolymer and a second sodium polyacrylate homopolymer, wherein the first sodium polyacrylate and the second sodium polyacrylate have a weight ratio of about 3 to about 1, and wherein the first and second sodium polyacrylate have different particle sizes. Preferably, the gelling mixture is present in an amount of about 0.3 w.t% to about 3.0 wt.% of the formulation. Additionally, the formulations according to the invention comprise one or more texturizing powders, such as a boron nitride powder, pigments, such as pearlescent pigments; and a surfactant system. The formulations of the instant invention have a viscosity between about 20,000 and 31,000 cPs when measured after 24 hours.DETAILED DESCRIPTION

[0005] Reference will now be made in detail to certain embodiments of the disclosed subject matter. While the disclosed subject matter will be described in conjunction with the enumerated claims, it will be understood that the exemplified subject matter is not intended to limit the claims to the disclosed subject matter.

[0006] The present disclosure provides a beneficial daily eye contour cream formulation having a gelling agent including two different sodium polyacrylates (INCI: Sodium polyacrylate) provided at a specific weight ratio. The formulation includes a specific combination of these two sodium polyacrylates that allows for beneficial properties such as good stability, spreadability, blurring, and pick-up. Additionally, the formulation is a clean formulation, and is substantially free of PEG. The formulation can include the re-worked gelling agent made of the two sodium polyacrylates, one or more surfactants, and two types of powders, such as a boron nitride and a pearlescent powder.

[0007] The first sodium polyacrylate is a polymeric emulsifier that offers a silky, velvety and non-tacky after-feel in different types of skin care applications having a unhydrated average particle size of 0.1 to 1pm. Preferably, the first polyacrylate is Cosmedia® SP (BASF Care Creations, Rhein, Germany), which has an unhydrated median particle size of 0.5 pm.

[0008] The second sodium polyacrylate is a rheology modifier that provides thickening properties. The second sodium polyacrylate exhibits a powdery skin feel and a matte finish. The second sodium polyacrylate also provides no tacky feeling, long lasting freshness, and is well adapted to matte formulations. The second sodium polyacrylate has an unhydrated median particle size of 10 to 20 pm. Preferably, the second polyacrylate is Covacryl®MV60 (SENSIENT BEAUTY, Saint Ouen L’ Aumone, France), which has an unhydrated median particle size of 13-15 pm.

[0009] Immediately after production, the formulation is preferably filled in the fill container to preserve long-term stability, preferably within 24 hours.

[0010] The formulation discussed herein has several advantages, some of which are unexpected. The weight ratio and combination of the two polyacrylates allows for a goodspreadability and beneficial blurring effect. Moreover, the formulation is stable, has satisfactory texture and good feel (e.g., not greasy or tacky).

[0011] The daily eye contour cream formulation discussed herein can be used, for example, as a moisturizer on skin around the eyes to provide, healthy -looking eye-zone area and a glowing and lighted eye contour. The daily eye contour cream formulation is a rich, non-shiny cream that can help nourish and support the skin’s natural moisture barrier.

[0012] The daily eye contour cream formulation can be used on a variety of skin types, for all genders, and is a vegan formulation friendly for post procedure application. The daily eye contour cream formulation can help with anti-aging effects, and produce replenishing, illuminating, improving the appearance of winkles, dark circles, puffiness, and fine lines, can provide a firming effect, and can aid in decongested eye contour.

[0013] Throughout this document, values expressed in a range format should be interpreted in a flexible manner to include not only the numerical values explicitly recited as the limits of the range, but also to include all the individual numerical values or sub-ranges encompassed within that range as if each numerical value and sub-range is explicitly recited. For example, a range of “about 0.1% to about 5%” or “about 0.1% to 5%” should be interpreted to include not just about 0.1% to about 5%, but also the individual values (e.g., 1%, 2%, 3%, and 4%) and the sub-ranges (e.g., 0.1% to 0.5%, 1.1% to 2.2%, 3.3% to 4.4%) within the indicated range. The statement “about X to Y” has the same meaning as “about X to about Y,” unless indicated otherwise. Likewise, the statement “about X, Y, or about Z” has the same meaning as “about X, about Y, or about Z,” unless indicated otherwise.

[0014] In this document, the terms “a,” “an,” or “the” are used to include one or more than one unless the context clearly dictates otherwise. The term “or” is used to refer to a nonexclusive “or” unless otherwise indicated. The statement “at least one of A and B” or “at least one of A or B” has the same meaning as “A, B, or A and B.” In addition, it is to be understood that the phraseology or terminology employed herein, and not otherwise defined, is for the purpose of description only and not of limitation. Any use of section headings is intended to aid reading of the document and is not to be interpreted as limiting; information that is relevant to a section heading may occur within or outside of that particular section.

[0015] In the methods described herein, the acts can be carried out in any order without departing from the principles of the invention, except when a temporal or operationalsequence is explicitly recited. Furthermore, specified acts can be carried out concurrently unless explicit claim language recites that they be carried out separately. For example, a claimed act of doing X and a claimed act of doing Y can be conducted simultaneously within a single operation, and the resulting process will fall within the literal scope of the claimed process.

[0016] The term “about” as used herein can allow for a degree of variability in a value or range, for example, within 10%, within 5%, or within 1% of a stated value or of a stated limit of a range and includes the exact stated value or range.

[0017] The term “substantially” as used herein refers to a majority of, or mostly, as in at least about 50%, 60%, 70%, 80%, 90%, 95%, 96%, 97%, 98%, 99%, 99.5%, 99.9%, 99.99%, or at least about 99.999% or more, or 100%. The term “substantially free of’ as used herein can mean having none or having a trivial amount of, such that the amount of material present does not affect the material properties of the composition including the material, such that about 0 wt.% to about 5 wt.% of the composition is the material, or about 0 wt.% to about 1 wt.%, or about 5 wt.% or less, or less than or equal to about 4.5 wt.%, 4, 3.5, 3, 2.5, 2, 1.5, 1, 0.9, 0.8, 0.7, 0.6, 0.5, 0.4, 0.3, 0.2, 0.1, 0.01, or about 0.001 wt.% or less, or about 0 wt.%.

[0018] The term “comprising” is used herein in its broadest sense to mean and to encompass the notions of “include” and “consist of.”

[0019] Viscosity is measured with a Brookfield apparatus at 23 °C (1 % in water; Spindle 6 at 5 rpm) according to Standard ISO 2555.

[0020] Particle size is measured by laser diffraction (Horiba LA 960 Analyzer). Throughout the present application, values represent the median volume-weighted diameter (D5O).Eye Cream Formulation

[0021] Various examples herein include a formulation for a daily eye contour cream including a film forming system comprising a gelling agent mixture. The gelling agent mixture includes both a first sodium polyacrylate and a second sodium polyacrylate, where the first sodium polyacrylate and the second sodium polyacrylate are provided in the gellingagent mixture at a weight ratio of about 3 to 1. The formulation can further include powders, such as boron nitride, pearlescent pigments, or other components. The formulation further includes a surfactant system.

[0022] The formulation have a beneficial viscosity for skin care application. The formulations according to the present invention have a viscosity in the range of about 20,000 cPs to about 31,000 cPs, for example about 21,000 cPs, about 22,000 cPs, about 23,000 cPs, about 24,000 cPs, about 25,000 cPs, about 26,000 cPs, about 27,000 cPs, about 28,000 cPs, about 29,000 cPs, about 30,000 cPs when tested after 24 hours. In an example, the formulations have a viscosity of about 25,500 cPs, of about 26,500 cPs, or of about 27,500 cPs when tested after 24 hours. In another example, the formulation can have a viscosity of about 22,500 cPs, of about 23,500 cPs, or of about 24,500 cPs when tested after 24 hours.

[0023] In a preferred embodiment, the formulations are substantially free of polyethylene glycol. For example, the formulations contain less than about 0.1 wt.% PEG-8, less than about 0.08 wt.% PEG-18, less than about 0.06 wt.% PEG-18, less than about 0.04 wt.% PEG-18, less than about 0.02 wt.% PEG-18, or less than about 0.01 wt.% PEG-18.

[0024] Preferably, the pH of the eye cream formulations is in a range of from about 5 to about 7, about 5.5 to about 6.5, less than, equal to, or greater than about 5, 5.5, 6, 6.5, or about 7.The Film Forming System

[0025] The gelling agent mixture can act as a film forming system on a consumer’s skin. The film forming system, including the gelling agent mixture, can be about 0.3 to about 3.0 wt.% or about 0.5 to about 2.0 wt.% of the total formulation weight._The gelling agent mixture can contribute to spreadability of the formulation and an even application thereof to a consumer’s skin.

[0026] In the formulations according to the invention, the gelling agent mixture includes a first sodium polyacrylate and aa second sodium polyacrylate at a weight ratio of about 3: 1. Sodium polyacrylate salts can generally be crosslinked or non-crosslinked polymers. The sodium polyacrylates can be used in particulate form.

[0027] The mixture of the first sodium polyacrylate and the second sodium polyacrylate can act at the gellant in the formulation. Preferably, the first sodium polyacrylate includes Cosmedia® SP (from BASF Care Creations, Rhein, Germany), while the second sodium polyacrylate includes Covacryl®MV60 (from SENSIENT BEAUTY, Saint Ouen L’ Aumone, France). The first and second sodium polyacrylate must have different particle sizes.

[0028] In the present invention, the first sodium polyacrylate and the second sodium polyacrylate are present in a weight ratio between 3.5: 1 and 2.5: 1, preferably in a weight ratio of about 2.5: 1, about 2.6: 1, about 2.7: 1, about 2.8: 1 about 2.9: 1, about 3: 1, about 3.1:1, about 3.2 : 1, about 3.3: 1 or about 3.4: 1. In this ratio, they provide substantial benefits to the formulation as a whole, and act as the gelling agent within the formulation.

[0029] The first sodium polyacrylate is an emulsifying polymer with stabilizing, thickening, and emulsifying properties. The first sodium polyacrylate aids in producing light texture, good spreadability, and a fresh skin feel with good tolerability. In an example, the first sodium polyacrylate can be a polyacrylic acid sodium salt.

[0030] The first sodium polyacrylate has and good sensory profile, offering a silky, velvety and non-tacky after-feel. In an example, the first sodium polyacrylate can be water soluble and act as a rheology modifier or thickener and can act improve the stability of the emulsion. The first sodium polyacrylate can enhance slip and spreadability of the formulation. The first sodium polyacrylate can provide nourishing, plumping, transparent, non-tacky and matte finish.

[0031] The first sodium polyacrylate can be up to about 1.80 wt.% of the formulation, up to about 1.50 wt.% of the formulation, up to about 1.0 wt.% of the formulation, or up to about 0.1 wt.% of the formulation.

[0032] The first sodium polyacrylate has a unhydrated average particle size of 0.1 to 1 pm, for example 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8 or 0.9 pm.

[0033] The second sodium polyacrylate is a thickening agent that allows for velvet touch and powdery skin feel. The second sodium polyacrylate can provide a fresh sensation to the skin and improve spreadability of the formulation. The second sodium polyacrylate is non-tacky and allows for a matte finish. In an example, the second sodium polyacrylate caninclude sodium polyacrylate in water. In an example, the second sodium polyacrylate can be an emulsifying polymer. In an example, the second sodium polyacrylate can be water soluble and act as a rheology modifier or thickener. The second sodium polyacrylate can provide a cooling effect due to its frosty appearance.

[0034] The second sodium polyacrylate can be up to about 1.8wt.% of the formulation, up to about 1.5 wt.% of the formulation, up to about 1.0 wt.% of the formulation, up to about 0.5 wt.% of the formulation, or up to about 0.1 wt.% of the formulation.

[0035] The second sodium polyacrylate has an unhydrated median particle size of 10 to 20 pm, for example 11, 12, 13, 14, 15, 16, 17, 18 or 19 pm.

[0036] The weight ratio of the first sodium polyacrylate to the second sodium polyacrylate in the gelling system is preferably about 3: 1. This weight ratio provide advantageous spreadability, feel, and sensory results, as discussed below in the Examples.Powders and Pigments

[0037] In addition to the gelling agent mixture, the formulation can include one or more powders or pigments as desired. For example, the formulation can include one or more texturizing powders, such as a boron nitride powder, and pigments, such as pearlescent pigments.

[0038] One or more powders can be used in the formulation. For example, one or more powders can be used in formulation that include particles that help to create visual special effect, improve skin feel and skin texture. For example, one or more powders can be used in the formulation that includes particulates allowing holding of a thin film therein. Such powders can help provide an appropriate viscosity and feel (e.g., tackiness) of the formulation.

[0039] In an example, boron nitride powder can be included in the formulation. The synthetic boron-based inorganic compound can be used in the formulation to increase adherence of the formulation, and act as a functional filler. In an example, boron nitride powder can be used to help in smooth application and adhesion of the formulation. In an example, the boron nitride powder can act as a filler component in the formulation.

[0040] In an example, the boron nitride powder can be about 0.3 wt.% to about 1.02 wt.% of the total formulation, about 0.5 wt.% to about 1.00 wt.% of the total formulation, or about 0.6 wt.% to about 0.90 wt.% of the total formulation.

[0041] In some examples, additional powders such as mica, talc, tin oxide, titanium dioxide, zinc oxide, polyamide, cellulose, starches (e.g., tapioca or corn starches), inorganic particles such as silicone-based powders, or other appropriate powders may be used instead of or in addition to boron nitride powder, such as for blurring benefits.

[0042] One or more pigments can be used in the formulation. In an example, such a pigment can include a particulate material that can provide luster, hue, color, or other visual benefits to the composition. Such a pigment can be organic or inorganic. In an example, such a pigment can be coated or uncoated.

[0043] In an example, pearlescent pigments can be included in the formulation. Pearlescent pigments can include partly translucent powders, such as formed by depositing titanium dioxide and / or iron salts onto mica, layered with metal oxides. Such pearlescent pigments can provide beneficial reflective properties and pigmentation to the formulation. Such pearlescent pigments can aid in providing luster to the formulation. In some cases, pearlescent pigments can be substrate-free. In some cases, pearlescent pigments can be layered. Example pearlescent pigments include, but are not limited to coated mica platelets, such as including titanium dioxide, iron oxide, or other metal oxide components.

[0044] In an example, the pearlescent pigments can be about 0.3 wt.% to about 1.02 wt.% of the total formulation, about 0.5 wt.% to about 1.00 wt.% of the total formulation, or about 0.6 wt.% to about 0.90 wt.% of the total formulation.

[0045] In some examples, additional or alternative pigments may be included in the formulation. Such pigments can be included to adjust the tone, luster, and look of the formulation. Example pigments can include inorganic pigments such as titanium dioxide, iron oxides, ultramarines, chromium oxide, chromium hydroxide, or organic pigments such as azo, indigoid, triphenylmethane, anthraquinone, and xanthine dyes, and / or dyes such as FD&C or D&C dyes. Such pigments can be optionally used in addition to the pearlescent pigments, in any suitable combination.The Surfactant System

[0046] The eye cream formulation can include any number of suitable surfactants, such as making up a surfactant system therein. The surfactant can stabilize the formulation, such as by stabilizing the emulsion. The surfactant can additionally help to tune the feel, texture, and spreadability of the cosmetic formulation. For example, the formulation can include a surfactant system, being about 2.5 wt.% to about 7.0 wt.% of the total formulation, about 3.0 wt.% to about 6.5 wt.% of the total formulation, or about 3.5 wt.% to about 6.0 wt.% of the total formulation. The surfactant system can include one or more components for adjusting the surface tension of the formulation, such as for good applicability and spreadability of the formulation.

[0047] In an example, the surfactant system can include sodium stearoyl glutamate and polyglyceryl-2 dipolyhydroxystearate. In an example, the formulation can include about 1.0 wt.% to about 2 wt.% or about 1.5 wt.% sodium stearoyl glutamate. In an example, the formulation can include about 3.5 wt.% to about 4.5 wt.% or about 4 wt.% polyglyceryl-2 dipolyhydroxystearate. Of the whole formulation, the surfactant system can be in a range of from about 4.0 wt.% to about 6.0 wt.% of the eye cream formulation.

[0048] The surfactant can include many other suitable surfactants or mixtures of surfactants in addition to sodium stearoyl glutamate. For example, the surfactant can include nonionic surfactants.

[0049] Suitable nonionic surfactants are disclosed in U.S. Pat. No. 3,929,678, Laughlin et al., issued Dec. 30, 1975, and U.S. Pat. No. 4,285,841, Barrat et al, issued Aug. 25, 1981. Exemplary, non-limiting classes of useful nonionic surfactants include Cs-Cis alkyl ethoxylates, with about 1-22 ethylene oxide units, including the so-called narrow peaked alkyl ethoxylates and Ce-Cn alkyl phenol alkoxylates, particularly ethoxylates and mixed ethoxylates / propoxylates, alkyl dialkyl amine oxides, alkanoyl glucose amides, and mixtures thereof. Other useful nonionic surfactants are polyethylene, polypropylene, and polybutylene oxide condensates of alkyl phenols. Commercially available nonionic surfactants of this type include Igepal® CO-630, marketed by the GAF Corporation; and Triton® X45, X-114, X- 100, and X-102, all marketed by the Rohm & Haas Company. These compounds are commonly referred to as alkyl phenol alkoxylates, preferably alkyl phenol ethoxylates. Further useful nonionic surfactants are the condensation products of aliphatic alcohols with from about 1 to about 25 moles of ethylene oxide. The alkyl chain of the aliphatic alcohol can either be straight or branched, primary or secondary, and generally contains from about 8 toabout 22 carbon atoms. Examples of commercially available nonionic surfactants of this type include Tergitol® 15-S-9 (the condensation product of C11-C15 linear secondary alcohol with 9 moles ethylene oxide), Tergitol® 24-L-6 NMW (the condensation product of C12- C14 primary alcohol with 6 moles ethylene oxide with a narrow molecular weight distribution), both marketed by The Dow Chemical Corporation; Neodol® 45-9 (the condensation product of C14-C15 linear alcohol with 9 moles of ethylene oxide), Neodol® 23- 6.5 (the condensation product of C12-C13 linear alcohol with 6.5 moles of ethylene oxide), Neodol® 45-7 (the condensation product of C14-C15 linear alcohol with 7 moles of ethylene oxide), Neodol® 45-4 (the condensation product of C14-C15 linear alcohol with 4 moles of ethylene oxide), marketed by Shell Chemical Company, and Kyro® EOB (the condensation product of C13-C15 alcohol with 9 moles ethylene oxide), marketed by The Procter & Gamble Company. Other commercially available nonionic surfactants include Dobanol 91-8® marketed by Shell Chemical Co. and Genapol UD-080® marketed by Hoechst. This category of nonionic surfactant is referred to generally as “alkyl ethoxylates.” Other useful nonionic surfactants are the condensation products of ethylene oxide with a hydrophobic base formed by the condensation of propylene oxide with propylene glycol. Examples of compounds of this type include certain of the commercially-available Pluronic® surfactants, marketed by BASF. Further useful surfactants are the condensation products of ethylene oxide with the product resulting from the reaction of propylene oxide and ethylenediamine. Examples of this type of nonionic surfactants include certain of the commercially available Tetronic® compounds, marketed by BASF. Semi-polar nonionic surfactants are a special category of nonionic surfactants which include water-soluble amine oxides. These amine oxide surfactants in particular include Cio-Cis alkyl dimethyl amine oxides and C8-C12 alkoxy ethyl dihydroxy ethyl amine oxides. Other nonionic surfactants are alkylpolysaccharides. Any reducing saccharide containing 5 or 6 carbon atoms can be used, e.g., glucose, galactose and galactosyl moieties can be substituted for the glucosyl moieties. Fatty acid amide surfactants, C12-C18 betaines and sulfobetaines (sultaines) are also knows surfactants.

[0050] In another example, amine oxide surfactants can be used. Commercially available amine oxides are the solid, dihydrate ADMOX 16 and ADMOX 18, ADMOX 12 and especially ADMOX 14 from Ethyl Corp. Other surfactants include dodecyi dim ethyl amine oxide dihydrate, hexadecyi dimethylamine oxide dihydrate, octadecyidimethylamine oxide dihydrate, hexadecyltris(ethyleneoxy)dimethyl-amine oxide, tetradecyidimethylamine oxide dihydrate, and mixtures thereof.

[0051] In another example, biodegradably branched surfactants can be used, such as are more fully disclosed in WO98 / 23712 A published Jun. 4, 1998; WO97 / 38957 A published Oct. 23, 1997; WO97 / 38956 A published Oct. 23, 1997; WO97 / 39091 A published Oct. 23, 1997; WO97 / 39089 A published Oct. 23, 1997; WO97 / 39088 A published Oct. 23, 1997; WO97 / 39087 Al published Oct. 23, 1997; WO97 / 38972 A published Oct. 23, 1997; WO 98 / 23566 A Shell, published Jun. 4, 1998.

[0052] Additional or alternative surfactants can include a polyglyceryl fatty acid ester, polyglyceryl-3 diisostearate, polyglyceryl-4 isostearate, polyglyceryl-3 cocoate, polyglyceryl-6 Ricinoleate, polyglyceryl-3 stearate polyglyceryl- 10 stearate, polyglyceryl- 10 oleate, polyglyceryl-4 diisostearate / polyhydroxy stearate / sebacate, polyglyceryl-2 dipolyhydroxystearate, polyglyceryl-3 poliricinoleate, polyglyceryl-6 stearate (and) polyglyceryl 6-behenate, sorbitan esters, sucrose esters, alkyl polyglycosides, fatty acid glucamides, or a mixture thereof. If the surfactant includes a polyglyceryl fatty acid ester, the polyglyceryl fatty acid ester can include a mixture of polyglyceryl-4 laurate / sebacate; polyglyceryl-6 caprylate / caprate; and water. The polyglyceryl fatty acid ester can alternatively or additionally include a mixture of polyglyceryl-4 laurate / sebacate, polyglyceryl-4 caprylate / caprate; and water. The polyglyceryl fatty acid ester can alternatively or additionally include polyglyceryl-4 caprate.Additional Components

[0053] Optionally, the formulation can include additional components, such as but not limited to additional solvents, thickening agents, pigments, dyes, powders, fillers, surfactant components, or other components as desired. In some cases, additional emulsifiers or chelates may be used.

[0054] Thus, the formulations herein can contain a variety of other optional components suitable for rendering such compositions more cosmetically or aesthetically acceptable or to provide them with additional usage benefits. Such conventional optional ingredients are well-known to those skilled in the art. These include any cosmetically acceptable ingredients such as those found in the CTFA International Cosmetic Ingredient Dictionary and Handbook, 7th edition, edited by Wenninger and McEwen, (The Cosmetic, Toiletry, and Fragrance Association, Inc., Washington, D.C., 1997). As used herein“cosmetically acceptable” means a material (e.g., compound or composition) which is suitable for use in contact with skin, hair or other suitable substrate.Method of Making the Eye Cream Formulation

[0055] The eye cream formulation discussed herein can be prepared in a variety of ways, such as by using any suitable preparation method. For example, the cosmetic formula can be made by combining the film forming phase (e.g., including the gelling agent having the first polyacrylate and the second polyacrylate) with the surfactant system, the powder, and the pigment. All the components can be stirred or otherwise mixed to form the final eye cream formulation.

[0056] For example, the eye cream formulation can be made by first premixing the oil phase components of the formulation, such as by stirring at an elevated temperature at about 110 °C until homogenous. Next, the water phase components can be heated, such as to about 80 °C. Then, the powders can be added to the water phase components by stirring. Subsequently, thickening agents can be added to the water phases one by one while stirring. The oil phase components can be added to the water phase components to create the emulsion, such as by stirring. The formulation can then be cooled, such as to about 25 °C.The liquid can activate when the formula is under about 40 °C. Additional powder components can then be added, and the pH can be adjusted.

[0057] Filling is done by methods known to the person skilled in the art, see for example Manufacturing: Process Techniques for the Cosmetic Industry in Harry s Cosmeticology 9th Ed..Method of Using the Eye Cream Formulation

[0058] The formulation discussed herein can be used by a consumer for skincare, such as around the eye. The formulation can be applied in the morning or evening, as an eye contour cream, such as for remedying eye puffiness. In some cases, the eye cream formulation can be applied as a make-up base and / or extender.

[0059] For example, a user can apply the eye cream formulation in the upper eye area and the lower eye area, such as through dots from an applicator, or alternatively with a finger.The consumer can massage the dots of the formulation into the upper eye area and the lower eye area until the formulation is absorbed.Examples

[0060] Various examples of the present disclosure can be better understood by reference to the following Examples which are offered by way of illustration. The present disclosure is not limited to the Examples given herein.Example 1. Gellant Mixture Formulations

[0061] Several sample formulation are being prepared using the gelling agent containing the first polyacrylate and the second polyacrylate at a weight ratio of 3 : 1, as discussed herein. Additionally, control and comparative examples using differing weight ratios of the first polyacrylate and the second polyacrylate are being prepared.

[0062] In each sample, the first polyacrylate used is Cosmedia® SP (BASF Care Creations, Rhein, Germany), a polyacrylic acid, sodium salt, The second polyacrylate being used is Covacryl®MV60 (SENSIENT BEAUTY, Saint Ouen L’ Aumone, France), a 2- propenoic acid, homopolymer, sodium salt.

[0063] The samples are summarized below in Table 1:CF means conforming to expected.Table 1. Gelling Agent Mixture Samples

[0064] The results clearly show that when the two polyacrylates are present in a weight ration of about 3: 1 and a visclsity in the range 20,000 to 31,000 (formulation A) the formulations have good stability and spreadability. The same does not apply to formulationswhere one of the polyacrylates is absent (formulations B and C). When the viscosity is too low (formulation D) or too high (formulation E), i.e. outside the range 20,000 to 31,000 cPs, the stability is conform, but the spreadability is unsatisfactory.

[0065] The eye cream gellant formulations using the first sodium polyacrylate and the second sodium polyacrylate were tested for pick up, spreadability, and blurring effect, through various testing protocols outlined below.Example 2, Testing of Eye Cream Formulation Before Application

[0066] Sample formulations using the gellant mixtures from Example 1 are made using the same amounts of the surfactant system, powder, and pigments. These samples include the surfactant system of sodium stearoyl glutamate and polyglyceryl-2 dipolyhydroxystearate, in addition to boron nitride powder and pearlescent pigments, mixed with the various gellant mixture samples described in Table 1. The components of the eye cream formulation samples are summarized below in Table 2:Table 2. Eye Cream Formulation Samples

[0067] The samples are prepared by mixing together the first polyacrylate Cosmedia® SP (BASF Care Creations, Rhein, Germany), acrylic acid homopolymer sodium salt or polyacrylic acid, sodium salt; with the second polyacrylate, Covacryl®MV60 (SENSIENT BEAUTY, Saint Ouen L’ Aumone, France), is a 2-propenoic acid, homopolymer, sodium salt, with the surfactant system including sodium stearoyl glutamate & polyglyceryl-2 dipolyhydroxystearate, the boron nitride powder (RonaFlair Boroneige SF-9,Merck & Co., New Jersey), and the pearlescent pigments (TIMIRON HALO WHITE 117228, Merck & Co., New Jersey).

[0068] The formulation in Table 2 were initially tested for pH and viscosity. Of these samples, those that perform well on pH and viscosity were tested according to testing protocols before (“pick-up”), during, and after application of the eye cream formulation. Such testing protocol can include testing for appearance, texture, and odor at various timings.

[0069] For the pick-up testing, e.g., before application, the sample eye cream formulations were tested in appearance for glossiness, and in texture for firmness, stickiness, and stringiness. For testing at pick-up, about 100 pl of the sample formulation is dropped off the thumb of each panelist conducting the sensory testing. This process is repeated for testing of glossiness, firmness, stickiness, and stringiness of the pre-application “pick-up” testing.

[0070] Pick-up Glossiness. The eye cream formulation glossiness were tested to see the quantity of light reflected by the product. The glossiness of the formulation were tested at pick-up. In the test for glossiness, the gloss of the product is assessed by looking at the product under white light, and specifically analyzed while the 100 pl of the sample formulation is on the thumb of the panelist. The product is assigned a value on a scale of mat to glossy.

[0071] Pick-up Firmness. The eye cream formulation firmness were tested to see the strength required to compress the product. Here, the 100 pl of the sample formulation on the thumb were compressed softly between the thumb and forefinger. The panelist assigned the sample formulation a score of low to high.

[0072] Pick-up Stickiness. The eye cream formulation firmness were tested to see the strength required to remove the forefinger from the thumb. The panelist assigned the sample formulation a score of low to high.

[0073] Pick-up Stringiness. The eye cream formulation firmness were tested to see the quantity of the product being stretched, rather than broken, when separating the fingers. Here, the 100 pl of the sample formulation was compressed between the thumb and the forefinger and separated once The panelist will assign the sample formulation a score of low to high.

[0074] These preliminary test of glossiness, firmness, stickiness, and stringiness were performed on the sample enumerated in Table 2 above to show the beneficial appearance and texture of the new eye cream formulation using sodium polyacrylates in a specific weight ratio.

[0075] Additionally, testing on the eye cream formulation during and after application was performed, such as outlined in Example 3 below.Example 3, Testing of Eye Cream Formulation During and After Application

[0076] The eye cream formulations were tested during application to a consumer’s skin. Here, odor, texture, and appearance were tested. Specifically, for odor, the overall fragrance intensity during application were tested. For texture, several sensor components were tested, including wetness, spreadability, thickness, greasiness, oiliness, and lifting. For appearance, noodling was tested.

[0077] For these tests, 50pl of the sample formulation is dropped off the forearm of the panelist, at the center of a 5cm-by-5cm zone marked by the panel leader. Each panelist will spread the product within the zone with 2 fingers (e.g., forefinger and middle finger), doing circular movements at a speed of about 2 turns / sec to evenly apply the 50pl of the sample formulation on their skin.

[0078] Spreadability. The eye cream formulation was tested during application to evaluate the easiness to spread the 50pl sample formulation on the skin. In this case, the panelist reviews the spreadability of the 50 pl sample formulation after three massages into the skin. The panelist assigned the sample formulation a score of low to high.

[0079] These during-application tests were performed on the sample enumerated in Table 2 above to show the beneficial appearance and texture of the new eye cream formulation using sodium polyacrylates in a specific weight ratio.

[0080] Additionally, the eye cream formulations were tested after application to a consumer’s skin. Here, odor, texture, and appearance can be tested. Specifically, for odor, the overall fragrance intensity after application were tested. For texture, several sensor components were tested, including stickiness, sliding effect, residue, residue type, velvety, and irritation. For appearance, noodling and glossiness was tested.

[0081] For these tests, after 50pL of the sample formulation has been rubbed in as described in Example 3 above, the panelists wipe their fingers and begin the after-application evaluations.

[0082] These during-application tests of were performed on a selection of the sample enumerated in Table 2 above to show the beneficial appearance and texture of the new eye cream formulation using sodium polyacrylates in a specific weight ratio.

[0083] The terms and expressions that have been employed are used as terms of description and not of limitation, and there is no intention in the use of such terms and expressions of excluding any equivalents of the features shown and described or portions thereof, but it is recognized that various modifications are possible within the scope of the examples of the present disclosure. Thus, it should be understood that although the present disclosure has been specifically disclosed by specific examples and optional features, modification and variation of the concepts herein disclosed may be resorted to by those of ordinary skill in the art, and that such modifications and variations are considered to be within the scope of examples of the present disclosure.Example 4

[0084] An exemplary formulation is as follows:Additional Examples.

[0085] The following exemplary examples are provided, the numbering of which is not to be construed as designating levels of importance.

[0086] Example 1 includes formulation for a contouring and moisturizing eye cream, the formulation comprising: a film forming system including a gelling mixture comprising a first sodium polyacrylate including a 2-propenoic acid, homopolymer, sodium salt, and a second sodium polyacrylate including a polyacrylic acid, sodium salt, wherein the first sodium polyacrylate and the second sodium polyacrylate have a weight ratio of about 3 to about 1, the gelling mixture comprising an amount of about 0.3 w.t% to about 3.0 wt.% of the formulation; at least two powders comprising boron nitride powder and pearlescent pigment; and a surfactant system, wherein the formulation has a maximum viscosity of about 31,000 cPs after 24 hours.

[0087] Example 2 can include Example 1, wherein the formulation is substantially free of polyethylene glycol.

[0088] Example 3 can include any of Examples 1-3, wherein the formulation contains less than about 0.05 wt.% PEG-8.

[0089] Example 4 can include any of Examples 1-3, wherein the formulation has a minimum viscosity of about 22,500 cPs.

[0090] Example 5 can include any of Examples 1-4, wherein the formulation has a viscosity in the range of about 22,500 cPs to about 31,000 cPs.

[0091] Example 6 can include any of Examples 1-5, wherein the first sodium polyacrylate comprises up to about 1.8wt.% of the formulation.

[0092] Example 7 can include any of Examples 1-6, wherein the first sodium polyacrylate comprises up to about 1.5 wt.% of the formulation.

[0093] Example 8 can include any of Examples 1-7, wherein the first sodium polyacrylate comprises up to about 1.0 wt.% of the formulation.

[0094] Example 9 can include any of Examples 1-8, wherein the first sodium polyacrylate comprises up to about 0.5 wt.% of the formulation.

[0095] Example 10 can include any of Examples 1-9, wherein the second sodium polyacrylate comprises up to about 1.80 wt.% of the formulation.

[0096] Example 11 can include any of Examples 1-10, wherein the second sodium polyacrylate comprises up to about 1.50 wt.% of the formulation.

[0097] Example 12 can include any of Examples 1-11, wherein the second sodium polyacrylate comprises up to about 1.0 wt.% of the formulation.

[0098] Example 13 can include any of Examples 1-12, wherein the second sodium polyacrylate comprises up to about 0.1 wt.% of the formulation.

[0099] Example 14 can include any of Examples 1-13, wherein the first sodium polyacrylate comprises sodium polyacrylate in water.

[0100] Example 15 can include any of Examples 1-14, wherein the first sodium poly acrylate is an emulsifying polymer.

[0101] Example 16 can include any of Examples 1-15, wherein the second sodium polyacrylate comprises a polyacrylic acid sodium salt.

[0102] Example 17 can include any of Examples 1-16, wherein the second sodium polyacrylate is water soluble.

[0103] Example 18 can include any of Examples 1-17, wherein the pearlescent pigment are about 0.5 wt.% to about 1.0 wt.% of the formulation.

[0104] Example 19 can include any of Examples 1-18, wherein the boron nitride is about 0.5 wt.% to about 1.0 wt.% of the formulation.

[0105] Example 20 can include any of Examples 1-19, wherein the surfactant system comprises sodium stearoyl glutamate and polyglyceryl-2 dipolyhydroxystearate.

[0106] Example 21 can include any of Examples 1-20, wherein the surfactant system is about 3.0 wt.% to about 7.0 wt.% of the formulation.

Claims

CLAIMSWhat is claimed is:

1. An eye cream formulation, the formulation comprising: a film forming system including a gelling mixture, the gelling mixture comprising a first sodium polyacrylate and a second sodium polyacrylate in a weight ratio of between 3.5: 1 and 2.5: 1, wherein the first and second sodium polyacrylate have different particle sizes; one or more texturizing powders; one or more pigments; and a surfactant system; wherein the formulation has a viscosity of between about 20,000 and 31,000 cPs when measured after 24 hours.

2. The eye cream formulation according to claim 1, wherein the a first sodium polyacrylate and a second sodium polyacrylate are present in a weight ratio of about 3: 1.

3. The eye cream formulation according to any of the preceding claims, wherein the gelling mixture is present in an amount of about 0.3 wt% to about 3.0 wt.% of the total formulation.

4. The formulation according to any of the preceding claims, wherein the formulation is substantially free of polyethylene glycol (PEG).

5. The formulation according to any of the preceding claims, wherein the formulation has a viscosity in the range of about 18,000 cPs to about 30,000 cPs.

6. The formulation according to any of the preceding claims, wherein the first sodium polyacrylate comprises up to about 1.8wt. % of the formulation, preferably up to about 1.5 wt.% of the formulation, more preferably up to about 1.0 wt.% of the formulation, even more preferably up to about 0.5 wt.% of the formulation.

7. The formulation according to any of the preceding claims, wherein the second sodium polyacrylate comprises up to about 1.80 wt.% of the total formulation, preferably up to about 1.50 wt.% of the total formulation, more preferably up to about1.0 wt.% of the total formulation, most preferably up to about 0.1 wt.% of the total formulation.

8. The formulation according to any of the preceding claims, wherein the first sodium polyacrylate has a mean particle size of between about 0.1 and 1 pm.

9. The formulation according to any of the preceding claims, wherein the second sodium polyacrylate has a mean particle size of between about 10 and 20 pm.

10. The formulation according to any of the preceding claims, wherein the pearlescent pigment is present at about 0.5 wt.% to about 1.0 wt.% of the formulation.

11. The formulation according to any of the preceding claims, wherein the texturizing powder is boron nitride, preferably at about 0.5 wt.% to about 1.0 wt.% of the total formulation.

12. The formulation according to any of the preceding claims, wherein the surfactant system comprises sodium stearoyl glutamate and polyglyceryl-2 dipolyhydroxy stearate.

13. The formulation according to any of the preceding claims, wherein the surfactant system is about 3.0 wt.% to about 7.0 wt.% of the total formulation.

14. The formulation according to any of the preceding claims, wherein the formulation is filled into the container within 24 hours.

15. Use of a gelling mixture comprising a first sodium polyacrylate and a second sodium polyacrylate as film forming system, wherein the first and second sodium polyacrylate have different particle sizes.

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