Cosmetic composition containing silica and lauroyl lysine

Abstract

(a) about 0.1% to about 10% silica having an average particle size of about 0.5 microns to about 35 microns and an oil absorption of about 1 mL / 100 g to about 130 mL / 100 g; (b) about 0.1% to about 10% lauroyl lysine; and (c) about 55% to about 99% water. The present invention discloses a cosmetic composition comprising: a cosmetic composition comprising: a cosmetic composition comprising: a cosmetic composition having a composition of the present invention; a cosmetic composition comprising a cosmetic ...

Description

[Technical Field]

[0001] The present invention comprises, by weight: (a) about 0.1% to about 10% silica having an average particle size of about 0.5 microns to about 35 microns and an oil absorption of about 1 mL / 100 g to about 130 mL / 100 g; (b) about 0.1% to about 10% lauroyl lysine; and (c) about 55% to about 99% water. The composition of the present invention provides an improved sensory feel during and / or after application to the skin, such as reduced heavy coating, reduced stickiness / tackiness, and / or reduced friction / dragging, while providing a moisturizing feel, particularly in cosmetic compositions containing high levels of water and / or low levels of oil. [Background technology]

[0002] Mammalian keratinous tissue, particularly human skin, is subject to various damages caused by both exogenous and endogenous factors. Such exogenous factors include ultraviolet light, environmental pollution, wind, heat, infrared rays, low humidity, harsh surfactants, abrasives, etc. Meanwhile, endogenous factors include chronological aging and other biochemical changes within the skin. Whether exogenous or endogenous, these factors result in visible signs of skin damage. Typical skin damage in aged or damaged skin includes fine lines, wrinkles, hyperpigmentation, pale skin, sagging, dark circles under the eyes, puffy eyes, enlarged pores, a slow turnover rate, and abnormal desquamation or peeling. Additional damage caused by both exogenous and endogenous factors includes visible necrotic skin, i.e., peeling, flaking, dryness, and roughness.

[0003] Currently, there are several personal care products available to consumers that are aimed at improving the health and physical appearance of keratinous tissues such as skin, hair, and nails.Most of these products are aimed at delaying, minimizing, or even eliminating skin wrinkles, age spots, and other histological changes that are typically associated with skin aging or environmental damage to human skin.Consumers prefer topically applied products because they are not only effective, but also safe and comfortable to use.

[0004] A variety of ingredients are used in such products, however, some of these ingredients can provide undesirable sensory experiences during and / or after application to the skin, such as a heavy coating, a greasy / oily feel, a sticky / tacky feel, and / or a rubbing / dragging feel.

[0005] For example, French Patent Application Publication No. 3021528 describes the need to find new cosmetic compositions, particularly cosmetic formulations for moisturizing the skin, having an appropriate texture, particularly a light and non-sticky texture. This French publication discloses a cosmetic formulation comprising an emulsifier including at least one jojoba wax ester, at least one beeswax ester, and cetyl alcohol, a spherical particle cosmetic powder having an average particle size of 1 to 25 μm, and a sheet-shaped cosmetic powder having an average particle size of 5 to 40 μm, and optionally further comprising a cosmetic powder in the form of flakes having an average flake diameter of 2 to 60 μm and / or a cosmetic powder in the form of polygonal crystals having an average crystal diameter of 2 to 60 μm. The French publication also discloses in Table 1 a cosmetic composition comprising 3.5% shea butter, 0.5% SUNSIL-150H (with a particle size of 10-15 microns and an oil absorption of 140-210 mL / 100 g), 0.4% AMIHOPE-LL, 0.4% CELLULOFLAKE and 53.4% ​​water. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] French Patent Application Publication No. 3021528 Summary of the Invention [Problem to be solved by the invention]

[0007] However, it has been found that there remains a need for cosmetic compositions that provide an improved sensory feel during and / or after application to the skin, such as reduced heavy coating, reduced stickiness / tackiness, and / or reduced friction / dragging, while providing a moisturizing feel, particularly in cosmetic compositions containing high levels of water and / or in cosmetic compositions containing low levels of oil.

[0008] Additionally: providing improved sensory feel during and / or after application to the skin, for example, less heavy coating, less sticky / tacky, and / or less friction / dragging, while providing a fresh / light feel from compositions containing higher levels of water; There may still be a need for cosmetic compositions that provide improved sensory feel during and / or after application to the skin, such as at least one of reduced heavy coating feel, reduced stickiness / tackiness, and / or reduced friction / dragging feel, while providing reduced greasy shine / oily shine due to oils derived from the composition. [Means for solving the problem]

[0009] The present invention provides a composition comprising, by weight, (a) about 0.1% to about 10% silica having an average particle size of about 0.5 microns to about 35 microns and an oil absorption of about 1 mL / 100 g to about 130 mL / 100 g, (b) about 0.1% to about 10% lauroyl lysine, and (c) about 55% to about 99% water. The present invention relates to a cosmetic composition comprising:

[0010] The compositions of the present invention provide an improved sensory feel during and / or after application to the skin, such as reduced heavy coating, reduced stickiness / tackiness, and / or reduced friction / dragging, while providing a moisturizing feel, particularly in cosmetic compositions containing high levels of water and / or in cosmetic compositions containing low levels of oil.

[0011] Surprisingly, it has been found that by using lauroyl lysine and a specific silica, the compositions of the present invention provide such an improved sensory feel, due to the horizontal smooth feel provided by the specific silica and the vertical elasticity and / or soft feel provided by the lauroyl lysine, while still providing a moisturizing feel. [Brief explanation of the drawings]

[0012] [Figure 1] 1 shows an exemplary test setup for adhesion methods / tests. DETAILED DESCRIPTION OF THE INVENTION

[0013] References herein to "an embodiment" or the like mean that a particular material, feature, structure, and / or characteristic described in connection with that embodiment is included in at least one embodiment, and optionally in multiple embodiments, but do not mean that all embodiments incorporate the described material, feature, structure, and / or characteristic. Furthermore, materials, features, structures, and / or characteristics may be combined in any suitable manner across different embodiments, and materials, features, structures, and / or characteristics may be excluded or substituted from those described. Accordingly, the embodiments and aspects described herein can include or be combined with elements or components of other embodiments and / or aspects, even if not explicitly illustrated in combination, unless specifically stated otherwise or stated to be incompatible.

[0014] In all embodiments, unless otherwise specifically stated, all ingredient percentages are by weight of the cosmetic composition. Unless otherwise specifically stated, all ratios are by weight. The number of significant digits does not represent a limitation on the stated amount or on the precision of the measurements. Unless otherwise specifically stated, all quantities are understood to be modified by the word "about." Unless otherwise specified, all measurements are understood to be made at ambient conditions of approximately 25°C, where "ambient conditions" means conditions of about 1 atmosphere and about 50% relative humidity. All numerical ranges are inclusive and can be combined to form smaller ranges not expressly disclosed. For example, delimited upper and lower range limits are interchangeable to create further ranges.

[0015] The compositions of the present invention can comprise, consist essentially of, or consist of the essential and optional components described herein. As used herein, "consisting essentially of" means that the composition or component may include only additional ingredients that do not materially alter the basic and novel characteristics of the claimed composition or method. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise.

[0016] definition "About" modifies a particular value by referring to a range equal to plus or minus 20 percent (±20%) or less (e.g., less than 15%, 10%, or even less than 5%) of the stated value.

[0017] "Applying" or "application" as used in reference to a composition means applying or spreading a composition of the present invention onto the surface of human skin, such as the epidermis.

[0018] As used herein, "derivative" refers to amide, ether, ester, amino, carboxyl, acetyl and / or alcohol derivatives of a given compound.

[0019] "Effective amount" means an amount of compounds and compositions sufficient to significantly induce a positive effect on keratinous tissue over the course of a treatment period. The positive effect may be a health, appearance, and / or feel effect, including the effects disclosed herein, individually or in combination.

[0020] "Cosmetic agent" means any substance and any components thereof intended to be rubbed, poured, sprinkled, sprayed, introduced, or otherwise applied to the mammalian body or any part thereof to produce a cosmetic effect. Cosmetic agents can include substances generally recognized as safe (GRAS) by the U.S. Food and Drug Administration, food additives, and materials used in non-cosmetic consumer products such as over-the-counter drugs.

[0021] "Cosmetic composition" means a composition containing a cosmetic agent. Examples of cosmetic compositions include color cosmetics (e.g., foundation, lipstick, concealer, and mascara), skin care compositions (e.g., moisturizers and sunscreens), personal care compositions (e.g., rinse-off and leave-in body washes and soaps), and hair care compositions (e.g., shampoos and conditioners).

[0022] "Skin care" means regulating and / or improving skin condition (e.g., skin health, appearance, or texture / feel). Some non-limiting examples of improving skin condition include improving the appearance and / or feel of skin by providing a smoother, more uniform appearance and / or feel, increasing the thickness of one or more layers of skin, improving skin elasticity or resilience, improving skin firmness, as well as reducing the oily, shiny, and / or dull appearance of skin, improving skin hydration or moisture content, improving the appearance of fine lines and / or wrinkles, improving skin exfoliation or scaling, plumping skin, improving skin barrier properties, improving skin tone, reducing the appearance of redness or skin blemishes, and / or improving skin brightness, radiance, or clarity.

[0023] "Skin care active" means a compound or combination of compounds that, when applied to the skin, produces an acute and / or chronic effect on the skin or a type of cell normally found in the skin. Skin care actives can regulate and / or improve the skin or cells associated therewith (e.g., improve skin elasticity, hydration, skin barrier function, and / or cellular metabolism).

[0024] "Skin care composition" means a composition that contains skin care actives and that regulates and / or improves the condition of the skin.

[0025] "Synergistic" and variations thereof mean that the effect provided by the combination of two or more materials is greater than the expected additive effect of those materials.

[0026] As used herein, "treatment period" refers to the length of time and / or frequency that a material or composition is applied to a target skin surface.

[0027] Cosmetic composition The cosmetic composition of the present invention contains silica having an average particle size of about 0.5 microns to about 35 microns and an oil absorption of about 1 mL / 100 g to about 130 mL / 100 g, lauroyl lysine, and water.

[0028] Preferably, in terms of providing an improved sensory feel, the composition satisfies at least one of the following conditions (i) and (ii), and more preferably the composition satisfies both of the following conditions (i) and (ii): (i) the weight ratio between silica and lauroyl lysine is about 15:1 to about 1:10, preferably about 10:1 to about 1:10, more preferably about 7:1 to about 1:7, and even more preferably about 5:1 to about 1:5; (ii) The particle size ratio between silica and lauroyl lysine is about 3:1 to about 1:35, preferably about 1:1 to about 1:35, more preferably about 1:2 to about 1:25, and even more preferably about 1:2 to about 1:20.

[0029] The composition preferably has a viscosity of from about 100 cP to about 300,000 cP, more preferably from about 100 cP to about 200,000 cP, even more preferably from about 100 cP to about 100,000 cP, even more preferably from about 1,000 cP to about 55,000 cP, and even more preferably from about 1,000 to about 48,000 cP, especially when the composition has higher levels of water.

[0030] When the compositions of the present invention contain shea butter, cetyl alcohol, stearyl alcohol, and / or behenyl alcohol, the compositions preferably contain limited amounts of such shea butter, cetyl alcohol, stearyl alcohol, and behenyl alcohol, as this provides a fresh / light feel from compositions containing higher levels of water. The total level of shea butter, cetyl alcohol, stearyl alcohol, and behenyl alcohol in the compositions is preferably at most about 0.5%, more preferably at most about 0.3%, even more preferably at most about 0.1%, and even more preferably 0%.

[0031] The cosmetic compositions herein are intended for topical application to human skin. The compositions herein may optionally contain one or more additional skin active agents or other ingredients of the type typically found in topical cosmetic compositions.

[0032] The cosmetic compositions herein may be cosmetic compositions, pharmaceutical compositions, or cosmeceutical compositions and may be provided in a variety of product forms, including, but not limited to, solutions, suspensions, lotions, gels, toners, washes, hydrogels, film-forming products, and the like. In some cases, the form of the composition may depend on the particular dermatologically acceptable carrier selected. For example, the composition (and carrier) may be provided in the form of an emulsion (e.g., water-in-oil, oil-in-water, or water-in-oil-in-water) or an aqueous dispersion. Preferably, the cosmetic compositions of the present invention are in the form of an oil-in-water emulsion.

[0033] silica The compositions of the present invention contain silica at a level of from about 0.1% to about 10%, preferably from about 0.3% to about 7%, more preferably from about 0.5% to about 5%.

[0034] The silica useful herein has an average particle size of about 0.5 microns to about 35 microns, preferably about 1 micron to 31 microns, more preferably about 1 micron to 15 microns, and even more preferably about 1 micron to about 10 microns, from the viewpoint of improved sensory feel. This is because particles that are too small may not provide sufficient lubricity, while particles that are too large may result in a scrubbing feel. Preferably, the silica is spherical.

[0035] The silica useful herein has an oil absorption of about 1 mL / 100 g to about 130 mL / 100 g, preferably about 1 mL / 100 g to about 120 mL / 100 g, more preferably about 1 mL / 100 g to about 100 mL / 100 g, and even more preferably about 1 mL / 100 g to about 50 mL / 100 g, in view of providing a balance between improved sensory feel and moisturizing feel.

[0036] Commercially available examples of spherical silica having such particle sizes and oil absorptions include Goddball G6C, which has an average particle size of 3 to 5 microns and an oil absorption of 30 mL / 100 g, and Goddball E90C, which has an average particle size of 30 microns and an oil absorption of 120 mL / 100 g.

[0037] Lauroyl Lysine The compositions of the present invention contain lauroyl lysine at a level of about 0.1% to about 10%, preferably about 0.3% to about 7%, more preferably about 0.5% to about 5%.

[0038] The shape of lauroyl lysine may be any. Preferably, the shape of lauroyl lysine is a sphere or a flattened polygon (selected from a flattened pentagon, a flattened hexagon, and a flattened heptagon, preferably a flattened hexagon). More preferably, the shape of lauroyl lysine is a flattened polygon.

[0039] In consideration of improving the sensory feel, the flat polygonal lauroyl lysine preferably has an average particle size of about 10 microns to about 40 microns, more preferably about 15 microns to about 35 microns, and more preferably about 20 microns to 30 microns, because particles that are too small may not provide a sufficiently elastic / soft feel, and particles that are too large may result in a scrubbing-like feel.

[0040] A commercially available example of such flat polygonal lauroyl lysine having such particle size is Amihope LL, which has a flat hexagonal shape and an average particle size of 20 to 30 microns, available from Ajinomoto Co., Inc.

[0041] The spherical lauroyl lysine preferably has an average particle size of about 1 micron to about 30 microns, more preferably about 2 microns to about 20 microns, and more preferably about 3 microns to 8 microns.

[0042] Lauroyl lysine, especially when it is flat polygonal, can be dispersed in the composition as a layer structure containing some or several flat polygonal crystals.It is believed that lauroyl lysine provides improved moisturizing / cushion-like feel compared to starch solid powder and cellulose solid powder.

[0043] Similarly, lauroyl lysine is believed to reduce pilling and / or agglomeration, especially when composition contains high level of hydrophilic thickener, compared with hydrophilic solid polymer powder such as starch solid powder and cellulose solid powder.Because of this pilling and / or agglomeration reduction, it may be preferable that the present composition does not substantially contain such hydrophilic solid polymer powder, i.e., contains 0.1% or less, more preferably 0.05% or less of such hydrophilic solid polymer powder.Even more preferably, the present composition does not contain such hydrophilic solid powder, i.e., contains 0% of such hydrophilic solid polymer powder.

[0044] It is believed that lauroyl lysine may result in a matte appearance and / or reduced visibility of skin pores.

[0045] Substantially free of microplastic solid particles The composition of the present invention, which comprises silica and lauroyl lysine, can provide improved sensory sensation without using microplastic solid particles.Therefore, the composition of the present invention can also bring about environmental benefits, considering the reduction in the use of microplastic solid particles.Such microplastic solid particles are, for example, nylon powder, polyurethane powder, polyethylene powder, silicone resin powder.In the present invention, it is preferred that the composition does not substantially contain such microplastic solid particles.More preferably, the composition of the present invention does not contain such microplastic solid particles, that is, it contains 0% of such microplastic solid particles.

[0046] Wetting agent The compositions of the present invention preferably contain a humectant at a level of from about 0.5% to about 20%, preferably from about 1% to about 15%, more preferably from about 2% to about 15%, and even more preferably from about 4% to about 12%, by weight of the composition.

[0047] The humectant useful herein is a polyhydric alcohol intended to moisturize, reduce flaking, and stimulate the removal of accumulated flaking from the skin. Examples of the polyhydric alcohol useful herein include alkylene polyols and their derivatives, and polyalkylene glycols. Examples of the polyhydric alcohol useful herein include propylene glycol, dipropylene glycol, polypropylene glycol, polyethylene glycol, sorbitol, hydroxypropyl sorbitol, hexylene glycol, pentylene glycol, 1,3-butylene glycol, 1,2,6-hexanetriol, glycerin, ethoxylated glycerin, propoxylated glycerin, and mixtures thereof. Preferred humectants herein are glycerin, pentylene glycol, 1,3-butylene glycol, and propylene glycol. More preferably, the humectant is glycerin, especially when using a vitamin B3 compound at a higher level, which may cause a dragging sensation during application and / or reduced moisture after application.

[0048] Aqueous carrier / water The composition preferably comprises an aqueous carrier. Preferably, the aqueous carrier is substantially water. Preferably, deionized water is used. Depending on the desired properties of the composition, water derived from natural sources containing mineral cations can also be used.

[0049] The compositions of the present invention contain water at a level of from about 55% to about 99%, preferably from about 60% to about 98%, more preferably from about 60% to about 95%, and even more preferably from about 60% to about 90% by weight of the composition.

[0050] In some cases, the compositions herein are in the form of oil-in-water ("O / W") emulsions, which provide a light, non-greasy sensory feel. Suitable O / W emulsions herein may comprise greater than 50% by weight of the composition as a continuous aqueous phase, with the remainder being a dispersed oil phase. The aqueous phase may comprise 1% to 99% water, based on the weight of the aqueous phase, along with any water-soluble and / or water-miscible ingredients. In these cases, the dispersed oil phase is typically present at less than 30% by weight of the composition (e.g., 1% to 20%, 2% to 15%, 3% to 12%, 4% to 10%, or even 5% to 8%) to help avoid some of the undesirable sensory effects of oily compositions. The oil phase may comprise one or more volatile and / or non-volatile oils (e.g., vegetable oils, silicone oils, and / or hydrocarbon oils).

[0051] pH of the composition Typically, cosmetic compositions are formulated to have a slightly acidic to neutral pH (i.e., 5.0-7.0), which is believed to improve the stability of certain ingredients in the composition (e.g., niacinamide, salicylates, and neutralized thickeners). However, skin care compositions can also be formulated at a lower pH (e.g., 2.0-5.0) to provide specific benefits such as improving the appearance of the skin, strengthening the skin's acid mantle, exfoliating the skin, improving skin texture, and / or providing flexibility in product formulation.

[0052] The compositions of the present invention may have a lower pH, i.e., less than 5.0, preferably from about 1.5 to about 4.9, more preferably from about 2.0 to about 4.5, even more preferably from about 2.5 to about 4.0, or even more preferably from about 3.5 to about 4.0. Polyacrylate crosspolymer-6 (such as that supplied by Seppic as "Sepimax Zen") has been found to provide the composition with suitable resistance to low pH environments and desirable feel and opacity properties.

[0053] Skin conditioning agent Optionally, the compositions of the present invention can further comprise a skin conditioning agent. These agents may be selected from moisturizing agents and emollients. The amount of skin conditioning agent may range from about 1% to about 50%, preferably from about 2% to about 40%, and more preferably from about 5% to about 30% by weight of the composition.

[0054] The humectant is a polyhydric alcohol intended to moisturize, reduce flaking, and stimulate the removal of accumulated flaking from the skin.Typical polyhydric alcohols include polyalkylene glycols, more preferably alkylene polyols and their derivatives.Examples include propylene glycol, dipropylene glycol, polypropylene glycol, polyethylene glycol, sorbitol, hydroxypropyl sorbitol, hexylene glycol, 1,3-butylene glycol, 1,2,6-hexanetriol, ethoxylated glycerin, propoxylated glycerin, and mixtures thereof.Most preferably, the humectant is glycerin.

[0055] When the conditioning agent is an emollient, it may be selected from hydrocarbons, fatty acids, fatty alcohols and esters.

[0056] Fatty alcohol The compositions herein may include a fatty alcohol, which refers to a high molecular weight, straight-chain primary alcohol having the general structure:

[0057] [ka] In the formula, n=8 to 32.

[0058] Fatty alcohols may be natural or synthetic, saturated or unsaturated, branched or straight-chain. Some non-limiting examples of fatty alcohols commonly used in cosmetic compositions include capric alcohol, caprylic alcohol, lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, and behenyl alcohol. Fatty alcohols herein may be referred to generically by the number of carbon atoms in the molecule. For example, "C12 alcohol" refers to an alcohol having 12 carbon atoms in its chain (i.e., dodecanol).

[0059] Fatty alcohols may be included in the compositions herein at 0.0001% to 15% (e.g., 0.0002% to 10%, 0.001% to 15%, 0.025% to 10%, 0.05% to 7%, 0.05% to 5%, or even 0.1% to 3%) by weight of the composition.

[0060] Whitening agent The composition of the present invention may contain a whitening agent.The whitening agent useful herein refers to an active ingredient that not only changes the appearance of the skin, but also further improves excessive hyperpigmentation compared to before treatment.The whitening agents useful herein include ascorbic acid compounds, vitamin B3 compounds, azelaic acid, butylhydroxyanisole, gallic acid and its derivatives, hydroquinone, kojic acid, arbutin, mulberry extract, tetrahydrocurcumin, and mixtures thereof.The combined use of whitening agents is considered to be advantageous in that they can produce whitening effects through different mechanisms.

[0061] When used, the present composition preferably contains from about 0.1% to about 10%, more preferably from about 0.2% to about 5%, by weight of the composition, of a whitening agent.

[0062] Ascorbic acid compounds are useful whitening agents, and ascorbyl glucoside is a preferred derivative of ascorbic acid compounds.

[0063] Conditioning Agent The compositions herein may comprise 0.1% to 50% by weight of a conditioning agent (e.g., 0.5% to 30%, 1% to 20%, or even 2% to 15% by weight). The addition of a conditioning agent can help provide the composition with desirable feel characteristics (e.g., a silky, smooth feel upon application). Some non-limiting examples of conditioning agents include hydrocarbon oils and waxes, silicones, fatty acid derivatives, cholesterol, cholesterol derivatives, diglycerides, triglycerides, vegetable oils, vegetable oil derivatives, acetoglyceride esters, alkyl esters, alkenyl esters, lanolin, wax esters, beeswax derivatives, sterols and phospholipids, salts, isomers, and derivatives thereof, and combinations thereof.

[0064] Particularly suitable examples of conditioning agents include volatile silicone fluids such as dimethicone copolyol, dimethylpolysiloxane, diethylpolysiloxane, mixed C1-30 alkylpolysiloxane, phenyldimethicone, dimethiconol, dimethicone, dimethiconol, silicone crosspolymers, and combinations thereof. Dimethicone may be particularly suitable because some consumers associate the feel properties provided by certain dimethicone fluids with good moisturizing.

[0065] Hydrophilic thickener In some embodiments, the compositions of the present invention may further comprise one or more hydrophilic thickeners. When present, the compositions preferably comprise from about 0.01% to about 5%, more preferably from about 0.1% to about 4%, and even more preferably from about 0.1% to about 3%, by weight of the composition, of hydrophilic thickener.

[0066] The hydrophilic thickeners useful herein are not particularly limited, as long as they are those commonly used in cosmetics. Examples include natural or semi-synthetic water-soluble polymers, synthetic water-soluble polymers, and inorganic water-soluble polymers.

[0067] The natural or semi-synthetic water-soluble polymer is preferably a polysaccharide or its derivative (including a water-soluble alkyl-substituted polysaccharide derivative). Specific examples include plant polymers such as gum arabic, tragacanth gum, galactan, guar gum, locust bean gum, karaya gum, carrageenan, pectin, agar, quince seed (quince), algae glue (brown algae extract), starch (rice, corn, potato, wheat), and glycyrrhizic acid, microbial polymers such as xanthan gum, dextran, succinoglycan, and pullulan, starch-based polymers such as carboxymethyl starch and methylhydroxypropyl starch, cellulose-based polymers such as methylcellulose, nitrocellulose, ethylcellulose, methylhydroxypropyl cellulose, hydroxyethyl cellulose, sodium cellulose sulfate, hydroxypropyl cellulose, sodium carboxymethylcellulose (CMC), crystalline cellulose, and cellulose powder, and alginic acid-based polymers such as sodium alginate and propylene glycol alginate.

[0068] Examples of synthetic water-soluble polymers include ionic or non-ionic water-soluble polymers, for example, vinyl polymers such as polyvinyl alcohol, polyvinyl methyl ether, polyvinylpyrrolidone, and carboxyvinyl polymers (carbomers), and acrylic polymers such as sodium polyacrylate, polyethyl acrylate, polyacrylamide compounds, and acrylic acid / alkyl methacrylate copolymers (trade name "Pemulen TR-1").

[0069] The polyacrylamide compound particularly includes a polyacrylamide compound consisting of a homopolymer, copolymer, or crosspolymer containing one or more constituent units selected from 2-acrylamido-2-methylpropanesulfonic acid (hereinafter sometimes abbreviated as "AMPS"), acrylic acid, and derivatives thereof.

[0070] Specific examples of such polyacrylamide compounds include vinylpyrrolidone / 2-acrylamido-2-methylpropanesulfonic acid (salt) copolymer, dimethylacrylarnide / 2-acrylamido-2-methylpropanesulfonic acid (salt) copolymer, acrylamide / 2-acrylamiclo-2-methylpropanesulfonic acid copolymer, dimethylacrylainide / 2-acrylamido-2-methylpropanesulfonic acid crosspolymer crosslinked with methylenebisacrylamide, a mixture of polyacrylamide and sodium polyacrylate, sodium acrylate / 2-acrylamido-2-methylpropanesulfonic acid copolymer, hydroxyethyl acrylate / 2-acrylamido-2-methylpropanesulfonic acid (salt) copolymer, ammonium polyacrylate, polyacrylamide / ammonium acrylate copolymer, and acrylamide / sodium acrylate copolymer. However, the compounds are not limited thereto.

[0071] Preferred examples of the salt in the previous paragraph include alkali metal salts (such as calcium salts and magnesium salts), ammonium salts, and organic amine salts (such as monoethanolamine salts, diethanolamine salts, and triethanolamine salts). One or more of these polyacrylamide compounds may be used.

[0072] These polyacrylamide compounds may be synthesized or obtained as commercially available products. For example, vinylpyrrolidone / 2-acrylarnido-2-methylpropanesulfonic acid (salt) copolymer may be "Aristoflex AVC" (manufactured by Clariant), sodium alylate / 2-acrylamido-2-methylpropanesulfonic acid (salt) copolymer may be "Simulgel EG" (manufactured by Seppic) or "Simulgel EPG" (manufactured by Seppic), acrylamide / 2-acrylamido-2-methylpropanesulfonic acid sodium salt copolymer may be "Simulgel 600" (manufactured by Seppic), acrylamide / 2-acrylamido-2-methylpropanesulfonic acid (salt) may be "Sepigel 305" (manufactured by Seppic) or "Sepigel 501" (manufactured by Seppic), and 2-acrylamido-2-methylpropanesulfonic acid sodium homopolymer may be "1-lostacerin The polymer may be "AMPS" (manufactured by Clariant) or "Simulgel 800" (manufactured by Seppic), and dimethylacrylamide / 2-acrylamido-2-methylpropanesulfonic acid may be "SU-Polymer 0-1" (manufactured by Toho Chemical Industry).

[0073] Polyacrylate crosspolymer 6, commercially available as "Sepimax Zen" from Seppic, Inc., may also be used herein, especially in low pH environments.

[0074] The hydrophilic thickeners in the water-based cosmetic products of the present invention may be one or a combination of two or more.

[0075] emulsifier When the composition is in the form of an emulsion, it may contain an emulsifier. The emulsifier may be nonionic, anionic, cationic, or zwitterionic. Some non-limiting examples of emulsifiers are disclosed in U.S. Patent Nos. 3,755,560 and 4,421,769, U.S. Patent Application Publication No. 2006 / 0275237, and McCutcheon's Detergents and Emulsifiers, North American Edition, pp. 317-324 (1986). Suitable examples of emulsifiers include nonionic stearic acid derivative emulsifiers such as polysorbate-20, glyceryl stearate, sorbitan stearate, PEG-100 stearate, steareth-2, steareth-21, glycereth-25 pyrrolidone carboxylic acid isostearate, and combinations thereof.

[0076] Other optional ingredients. The compositions herein may contain one or more optional ingredients known for use in topical cosmetic compositions, provided that the optional components do not unacceptably alter the desired benefits of the composition. In some cases, it may be desirable to select active ingredients that function through different biological pathways so that the cosmetic active ingredients do not interfere with each other. When the composition is in the form of an emulsion, the additional ingredients should not introduce instability (e.g., syneresis) into the emulsion. For example, it may be desirable to select optional ingredients that do not complex with other ingredients in the composition, particularly pH-sensitive ingredients such as vitamin B3 compounds, salicylates, and peptides.

[0077] The additional ingredients should be suitable for use in contact with human skin tissue without undue toxicity, incompatibility, instability, allergic reaction, etc. Optional ingredients, when present, may be included in an amount of about 0.001% to 50% by weight (e.g., 0.01% to 40%, 0.1% to 30%, 0.5% to 20%, or 1% to 10%) of the composition. Some non-limiting examples of additional ingredients include vitamins, minerals, peptides and peptide derivatives, sugar amines, sunscreens, oil control agents, microparticles, flavonoid compounds, hair growth regulators, antioxidants and / or antioxidant precursors, preservatives, protease inhibitors, tyrosinase inhibitors, anti-inflammatory agents, moisturizers, exfoliants, skin lightening agents, sunscreens, sunless tanning agents, lubricants, anti-acne agents, anti-cellulite agents, chelating agents, anti-wrinkle actives, anti-atrophy actives, phytosterols and / or plant hormones, N-acyl amino acid compounds, antibacterial agents, and antifungal agents. Some particularly suitable examples of additional ingredients include one or more skin care actives selected from the group consisting of vitamin B3 compounds (e.g., niacinamide), n-acyl amino acids (e.g., undecylenoyl phenylalanine), vitamin E compounds (e.g., tocopheryl acetate), palmitoylated dipeptides (e.g., palmitoyl-lysine-threonine), palmitoylated pentapeptides (e.g., palmitoyl-lysine-threonine-threonine-lysine-serine), vitamin A compounds (e.g., retinol and retinyl propionate), and combinations thereof.Other non-limiting examples of optional ingredients and / or skin care actives that may be suitable for use herein are described in U.S. Patent Application Publication Nos. 2002 / 0022040, 2003 / 0049212, 2004 / 0175347, 2006 / 0275237, 2007 / 0196344, 2008 / 0181956, 2008 / 0206373, 2010 / 0092408, 2008 / 0206373, 2010 / 0239510, 2010 / 0189669, 2010 / 019634 ... Nos. 010 / 0272667, 2011 / 0262025, 2011 / 0097286, 2012 / 0197016, 2012 / 0128683, 2012 / 0148515, 2012 / 0156146, and 2013 / 0022557, as well as U.S. Patent Nos. 5,939,082, 5,872,112, 6,492,326, 6,696,049, 6,524,598, 5,972,359, and 6,174,533.

[0078] Sucrose esters may be used herein. Such sucrose esters may be a blend of two or more sucrose esters, with the two or more sucrose esters present in a ratio of 1:10 to 1:1 (e.g., 1:7, 1:5, 1:3, or 1:2) of one sucrose ester to another. In some cases, the sucrose ester may be a blend of sucrose laurate and sucrose dilaurate, with the sucrose laurate being present at 50% to 80% by weight of the sucrose ester and the sucrose dilaurate being present at 20% to 45% by weight of the sucrose ester. Alternatively, the sucrose ester may be a blend of sucrose laurate, sucrose dilaurate, and sucrose trilaurate, with the sucrose dilaurate being present at 35% or more by weight of the sucrose ester. An example of a particularly suitable sucrose ester for use herein is sucrose dilaurate BC10034, available from BASF.

[0079] Method of using the cosmetic composition The method of use herein includes identifying a target area of ​​skin on a human in need of treatment and applying the composition to the target area of ​​skin for a treatment period. The target area of ​​skin can be on the surface of the face, such as the forehead, perioral area, chin, periorbital area, nose, and / or cheeks, or on another part of the body (e.g., hands, arms, legs, back, chest). The human in need of treatment is one whose skin shows signs of oxidative stress, such as fine lines, wrinkles, hyperpigmentation, uneven skin tone, and / or other visible skin features typically associated with aging. In some cases, the target area of ​​skin may not show visible signs of skin aging, but the user may still want to target such skin areas if they typically develop such problems as people age. In this way, the method may be used as a preventative measure to delay the onset of visible signs of skin aging.

[0080] The composition may be applied daily to the target area of ​​skin and, if desired, to surrounding skin at least once daily, twice daily, or more frequently during the treatment period. If applied twice daily, the first and second applications are separated by at least 1 to 12 hours. Typically, the composition is applied in the morning and / or at night before bedtime. The treatment period may last for at least one week (e.g., about two, four, eight, or even twelve weeks). In some cases, the treatment period will extend for several months (i.e., three to twelve months). In some cases, the composition may be applied at least once daily, or even twice daily, for a majority of days of the week (e.g., at least four, five, or six days per week) during a treatment period of at least two, four, eight, or twelve weeks.

[0081] The step of applying the composition can be carried out by topical application. With respect to the application of the composition, the terms "topical," "topical," or "topically" mean that the composition is delivered to a target area (e.g., wrinkles or fine lines) while minimizing delivery to skin surfaces where treatment is not desired. The composition may be applied to an area of ​​skin and gently massaged in. The form of the composition or dermatologically acceptable carrier should be selected to facilitate topical application. While certain embodiments herein contemplate applying the composition topically to an area, it will be understood that the compositions herein may be applied broadly to one or more skin surfaces. In certain embodiments, the compositions herein may be used as part of a multi-step cosmetic regimen, in which case the composition of the present invention may be applied before and / or after one or more other compositions.

[0082] combination 1. By weight, a) about 0.1% to about 10% silica having an average particle size of about 0.5 microns to about 35 microns and an oil absorption of about 1 mL / 100 g to about 130 mL / 100 g; b) about 0.1% to about 10% lauroyl lysine; c) about 55% to about 99% water; A cosmetic composition comprising: 2. A composition of the foregoing characterization wherein the silica is spherical. 3. A composition of any of the preceding characteristics, wherein the silica has an average particle size of from about 1 micron to 31 microns, preferably from about 1 micron to 15 microns, and more preferably from about 1 micron to about 10 microns. 4. The composition of any of the preceding characteristics, wherein the lauroyl lysine has a flattened polygonal shape. 5. A composition according to any of the preceding characteristics, wherein the lauroyl lysine has an average particle size of about 10 microns to about 40 microns, preferably about 15 microns to about 35 microns, and more preferably about 20 microns to about 30 microns. 6. A composition according to any of the preceding characteristics, wherein the silica has an oil absorption of from about 1 mL / 100 g to about 130 mL / 100 g, preferably from about 1 mL / 100 g to about 120 mL / 100 g, more preferably from about 1 mL / 100 g to about 100 mL / 100 g, and even more preferably from about 1 mL / 100 g to about 50 mL / 100 g. 7. The composition of any of the preceding characteristics, wherein the weight ratio between silica and lauroyl lysine is from about 15:1 to about 1:10, preferably from about 10:1 to about 1:10, more preferably from about 7:1 to about 1:7, and even more preferably from about 5:1 to about 1:5. 8. A composition of any of the preceding characteristics, wherein the particle size ratio between silica and lauroyl lysine is from about 3:1 to about 1:35, preferably from about 1:1 to about 1:35, more preferably from about 1:2 to about 1:25, and even more preferably from about 1:2 to about 1:20. 9. The composition of any of the preceding features, wherein, when the composition comprises shea butter, cetyl alcohol, stearyl alcohol, and / or behenyl alcohol, the total amount of shea butter, cetyl alcohol, stearyl alcohol, and behenyl alcohol in the composition is up to about 0.5%, preferably up to about 0.3%, and more preferably up to about 0.1%. 10. Use of a composition of any of the preceding characteristics to provide a reduced heavy coating feel, a reduced sticky / tacky feel, and / or a reduced friction / dragging feel. 11. Use of a composition of any of the preceding characteristics to provide an environmental benefit: a reduction in the use of microplastic solid particles. [Example]

[0083] [Table 1]

[0084] [Table 2]

[0085] [Table 3]

[0086] [Table 4]

[0087] Adhesion (time to break Δ) Tack is assessed by the time to break Δ measured by the following "tack method." A higher value of time to break Δ means a decrease in persistent tack.

[0088] Moisture (time weighted force area) The moisturizing feeling is evaluated by the time-weighted force area measured by the following "sticky method." A higher value of the time-weighted force area means a higher moisturizing feeling.

[0089] Adhesion method (also called adhesion test) In this method, a texture analyzer is used to contact a probe with a film formed from the composition. The texture analyzer then measures the force required to separate the probe from the composition film. Adhesion, time-weighted force area, average time to failure, and change in time to failure can be measured using this method. The adhesion method is configured to run over a 100-minute period. Without being limited by theory, it is believed that the adhesive properties exhibited by a composition during the course of the adhesion test approximate the adhesive properties exhibited by the composition during the first few minutes of a user's use of the composition (e.g., less than 10 minutes, 30 seconds to 5 minutes, or 1 minute to 3 minutes). Without being limited by theory, it is also believed that having adequate adhesion at later times during the test (e.g., 60 minutes, 80 minutes, and / or 100 minutes) has a greater impact on the user's perception of moisturization than adhesion at earlier times during the test. Therefore, weighting adhesion measurements toward later time points using time-weighted force area provides a more accurate prediction of the moisturization signal perceived by the user.

[0090] Figure 1 shows an exemplary test setup for adhesion testing. A TA.XT2i brand texture analyzer (available from Texture Technologies Corporation, MA) 50, or equivalent, is used to measure the adhesion of films formed with the composition of interest. The texture analyzer is equipped with an adhesion probe 52 in the form of a 12.75 mm diameter acrylic cylinder with a flat surface. During testing, the flat surface of the probe 52 is brought into contact with the surface of the film of composition. Therefore, the flat surface of the probe and the surface of the film must be parallel to each other during testing to ensure sufficient contact by the film across the effective test surface of the probe 52. The film is prepared by filling or overfilling (and then stretching) a rectangular groove 54 (e.g., 25 cm long x 30 mm wide x 0.25 mm deep) with the composition to be tested.

[0091] The test is performed using an adhesion test protocol with a pre-test speed of 0.10 mm / s, a test speed of 0.10 mm / s, and a post-test speed of 1.0 mm / s. The applied force is 200 g, the return distance is 4 mm, and the contact time is 5.0 seconds. The trigger type, which specifies sample contact, is set to automatic, and the trigger force is 5.0 g. The test is performed immediately after the film is prepared, at the following time increments: less than 1 minute (i.e., immediately after film preparation), 10 minutes, 20 minutes, 30 minutes, 40 minutes, 50 minutes, 60 minutes, 80 minutes, and 100 minutes. Each time point is performed on a previously untouched / untested area of ​​the sample. Each sample is run in triplicate, and the average is recorded.

[0092] Data extraction uses the portion of the data collected as the probe is withdrawn upward from the sample. The adhesion force is the peak force for each test run. The time weighted force area is calculated using the following formula:

[0093]

number

[0094] When calculating the difference between t1 and t2 or P1 and P2, the absolute value of the result is used to calculate the time-weighted force area.

[0095] Time-weighted force area is reported as the sum of the individual time-weighted force area values ​​calculated for each of eight time intervals (<1 min to 10 min, 10 min to 20 min, 20 min to 30 min, etc.).

[0096] The time to break is determined by the width of the force curve. The start time for the time to break calculation is when the sign of the force applied by the Texture Analyzer changes from negative to positive at time 0 (i.e., the start of the test) and the time when the force decays from the peak force to 0.0±0.02 as the time to break. The average time to break is reported as the average of the times to break at 60, 80, and 100 minutes. The change in time to break is the difference between the initial time to break and the time to break at 100 minutes.

[0097] Some results for the above compositions are shown above along with composition details.

[0098] Examples 1 to 11 are examples of the present invention, which are suitable for use as oil-in-water emulsion cosmetic compositions in the form of essences, lotions, serums, and / or gel creams. The examples of the present invention provide improved sensory feel during and / or after application to the skin, such as reduced heavy coating, reduced stickiness / tackiness, and / or reduced friction / dragging, while providing a moisturizing feel, particularly in cosmetic compositions containing high levels of water and / or low levels of oil.

[0099] The advantages of the present invention, particularly the reduction of sticky feeling while providing moisturizing feeling, can be understood by comparing Examples 1 to 3 of the present invention with Comparative Examples. Comparative Example i does not contain lauroyl lysine and silica and gives sticky feeling. Comparative Example ii has silica with higher oil absorption, resulting in reduced moisturizing feeling.

[0100] Dimensions and values ​​disclosed herein should not be understood as being strictly limited to the exact numerical values ​​recited. Instead, unless otherwise indicated, each such dimension is intended to mean both the recited value and a functionally equivalent range surrounding that value. For example, a dimension disclosed as "40 mm" is intended to mean "about 40 mm."

[0101] All documents cited herein, including any cross-referenced or related patents or patent applications, and any patent applications or patents to which this application claims priority or benefit, are incorporated herein by reference in their entirety, unless expressly stated to the contrary. The citation of any document shall not be deemed to be prior art to any invention disclosed or claimed herein, or to teach, suggest, or disclose any such invention, either alone or in combination with any other reference or references. Furthermore, if any meaning or definition of a term in this document conflicts with any meaning or definition of the same term in a document incorporated by reference, the meaning or definition assigned to that term in this document shall control.

[0102] While particular embodiments of the present invention have been illustrated and described, it would be obvious to those skilled in the art that various other changes and modifications can be made without departing from the spirit and scope of the invention. It is therefore intended to cover in the appended claims all such changes and modifications that are within the scope of this invention.

Claims

1. By weight, a) about 0.1% to about 10% silica having an average particle size of about 0.5 microns to about 35 microns and an oil absorption of about 1 mL / 100 g to about 130 mL / 100 g; b) about 0.1% to about 10% lauroyl lysine; and c) about 55% to about 99% water; and A cosmetic composition comprising:

2. The composition of claim 1 , wherein the silica is spherical.

3. 10. The composition of claim 1, wherein the silica has an average particle size of about 1 micron to 31 microns, preferably about 1 micron to 15 microns, and more preferably about 1 micron to about 10 microns.

4. The composition of claim 1 , wherein the lauroyl lysine has a flattened polygonal shape.

5. 2. The composition of claim 1, wherein the lauroyl lysine has an average particle size of from about 10 microns to about 40 microns, preferably from about 15 microns to about 35 microns, and more preferably from about 20 microns to about 30 microns.

6. 2. The composition of claim 1, wherein the silica has an oil absorption of from about 1 mL / 100 g to about 120 mL / 100 g, preferably from about 1 mL / 100 g to about 100 mL / 100 g, and more preferably from about 1 mL / 100 g to about 50 mL / 100 g.

7. 2. The composition of claim 1, wherein the weight ratio between silica and lauroyl lysine is from about 15:1 to about 1:10, preferably from about 10:1 to about 1:10, more preferably from about 7:1 to about 1:7, and even more preferably from about 5:1 to about 1:

5.

8. 2. The composition of claim 1, wherein the particle size ratio between silica and lauroyl lysine is from about 3:1 to about 1:35, preferably from about 1:1 to about 1:35, more preferably from about 1:2 to about 1:25, and even more preferably from about 1:2 to about 1:

20.

9. 2. The composition of claim 1, wherein, when the composition comprises shea butter, cetyl alcohol, stearyl alcohol and / or behenyl alcohol, the total amount of shea butter, cetyl alcohol, stearyl alcohol and behenyl alcohol in the composition is at most about 0.5%, preferably at most about 0.3%, more preferably at most about 0.1%.

10. 10. Use of a composition according to any one of claims 1 to 9 to provide a reduced heavy coating feel, a reduced sticky / tacky feel, and / or a reduced friction / drag feel.

11. 10. Use of a composition according to any one of claims 1 to 9 to provide an environmental benefit by reducing the use of microplastic solid particles.

Images