Water-in-oil type solid stick composition containing large amount of water phase

Abstract

To provide a water-in-oil type solid stick composition containing a large amount of water phase that can yield a stable formulation while containing an acidic active ingredient, and can deliver a water-bursting effect immediately upon application to the skin by containing a large amount of water phase.SOLUTION: According to the present disclosure, the solid stick formulation can be stabilized without pH restriction, and it is also superior in terms of safety because it does not use PEG or silicone oil.SELECTED DRAWING: None

Description

[Technical field]

[0001] Disclosed herein are high internal aqueous phase solid stick compositions that have stable formulations while containing acidic ingredients. [Background technology]

[0002] Conventional stick-type cosmetic compositions are classified into SOAP (containing fatty acids and neutralizing agents) emulsion preparations and oil (anhydrous) type products.

[0003] SOAP (containing fatty acid and neutralizing agent) emulsion preparations are divided into W / O preparations and O / W preparations, which are technically prepared at a pH of 8 or higher, and therefore have stability problems.

[0004] In addition, W / O formulations contain PEG-based surfactants and silicone-based oils and do not contain much moisture-retaining ingredients, while O / W stick products contain PEG-based or silicone-based oils, which make them incompatible with makeup products (W / O) and cause the active ingredients to be easily washed away by water or sweat.

[0005] In addition, in the case of oil (anhydrous) preparations, the drawback of containing a large amount of powder due to the excessive oiliness has been pointed out, which results in a lack of moisturizing feeling when used.

[0006] In particular, in the case of the above-mentioned products, when an acidic ingredient is incorporated, problems arise with the stability of the formulation, making it difficult to incorporate an acidic active ingredient such as vitamin C.

[0007] Therefore, in order to compensate for the drawbacks of compositions in stick preparations as described above, it is necessary to develop a composition that has formulation stability, can be formulated with various ingredients while maintaining stability, and has an excellent moisturizing feel. [Prior art documents] [Patent documents]

[0008] [Patent Document 1] Korean Patent No. 10-2434543 Summary of the Invention [Problem to be solved by the invention]

[0009] In one aspect of the present disclosure, an object is to provide a water-in-oil type high internal aqueous phase solid stick composition which contains an acidic component but does not contain a PEG-based surfactant or silicone oil, is a stable formulation, and contains a high content of aqueous phase. [Means for solving the problem]

[0010] In one aspect, the present specification provides a water-in-oil type high internal aqueous phase solid stick composition, the solid stick composition comprising an oil phase portion and an aqueous phase portion, the oil phase portion comprising a silicone emulsifier including an ethoxyglucoside derivative, the aqueous phase portion comprising an acidic component, and the aqueous phase portion comprising 35 wt% or more of the total weight of the composition. Effect of the Invention

[0011] In one aspect, the solid stick compositions disclosed herein contain specific silicone elastomers to provide stable formulations containing acidic active ingredients, contain a high content of aqueous phase, and provide an immediate water-repellent effect upon application to the skin. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] The present disclosure will be described in more detail below with reference to the following examples. However, the following examples are merely illustrative for the purpose of aiding understanding of the present disclosure, and are not intended to limit the scope and spirit of the present disclosure.

[0013] In an exemplary embodiment of the present disclosure, there is provided a water-in-oil type high internal aqueous phase solid stick composition, the solid stick composition comprising an oil phase portion and an aqueous phase portion, the oil phase portion comprising a silicone emulsifier including an ethoxyglucoside derivative, the aqueous phase portion comprising an acidic component, and the aqueous phase portion comprising 35% by weight or more based on the total weight of the composition.

[0014] In one implementation, the composition may be a skin moisturizing composition.

[0015] In one implementation, the composition may be a skin lightening composition.

[0016] In one implementation, the composition may be a skin anti-aging composition.

[0017] In another exemplary embodiment of the present disclosure, there is provided a use of a water-in-oil type high internal aqueous phase solid stick composition for preparing a skin moisturizing composition, the solid stick composition comprising an oil phase portion and an aqueous phase portion, the oil phase portion comprising a silicone emulsifier including an ethoxyglucoside derivative, the aqueous phase portion comprising an acidic component, and the aqueous phase portion comprising 35% by weight or more based on the total weight of the composition.

[0018] In another exemplary embodiment of the present disclosure, there is provided a use of a water-in-oil type high internal aqueous phase solid stick composition for preparing a skin whitening composition, the solid stick composition comprising an oil phase portion and an aqueous phase portion, the oil phase portion comprising a silicone emulsifier including an ethoxyglucoside derivative, the aqueous phase portion comprising an acidic component, and the aqueous phase portion comprising 35% by weight or more based on the total weight of the composition.

[0019] In another exemplary embodiment of the present disclosure, there is provided a use of a water-in-oil type high internal aqueous phase solid stick composition for preparing a skin anti-aging composition, the solid stick composition comprising an oil phase portion and an aqueous phase portion, the oil phase portion comprising a silicone emulsifier including an ethoxyglucoside derivative, the aqueous phase portion comprising an acidic component, and the aqueous phase portion comprising 35% by weight or more based on the total weight of the composition.

[0020] In another exemplary implementation of the present disclosure, there is provided a method for improving skin moisturization, comprising applying an effective amount of the aforementioned water-in-oil high internal aqueous phase solid stick composition to the skin of a subject in need thereof.

[0021] In another exemplary implementation of the present disclosure, there is provided a method for improving skin whitening effect, comprising applying an effective amount of the aforementioned water-in-oil high internal aqueous phase solid stick composition to the skin of a subject in need thereof.

[0022] In another exemplary implementation of the present disclosure, there is provided a method for improving skin anti-aging power, comprising applying an effective amount of the aforementioned water-in-oil high internal aqueous phase solid stick composition to the skin of a subject in need thereof.

[0023] The composition according to one embodiment of the present disclosure can stabilize the formulation while containing a high content of water-soluble active ingredients, and upon application, can provide a water-repellent moisturizing sensation immediately, allowing consumers to feel both moisturized and hydrated at the same time.

[0024] For example, the aqueous phase may be 35% by weight or more, 40% by weight or more, 45% by weight or more, 50% by weight or more, 55% by weight or more, 60% by weight or more, 65% by weight or more, 70% by weight or more, 75% by weight or more, or 80% by weight or more, and may be 90% by weight or less, 85% by weight or less, 80% by weight or less, 75% by weight or less, 70% by weight or less, 65% by weight or less, 60% by weight or less, or 55% by weight or less, based on the total weight of the solid stick composition.

[0025] In one implementation, the pH of the composition may be 3-6.

[0026] For example, the pH may be 3 or more, 3.5 or more, 4 or more, 4.5 or more, 5 or more, or 5.5 or more, or 6 or less, 5.5 or less, 5 or less, 4.5 or less, 4 or less, or 3.5 or less.

[0027] The water-in-oil type high internal aqueous phase solid stick composition according to the present disclosure may contain various ingredients without limiting the pH, and the formulation can be stabilized by adjusting the pH of the composition to within the above range.

[0028] In one embodiment, the silicone emulsifier containing the ethoxyglucoside derivative may be present in an amount of 0.001 to 10% by weight based on the total weight of the composition.

[0029] For example, the silicone emulsifier containing the ethoxyglucoside derivative may be present in an amount of 0.001% by weight or more, 0.01% by weight or more, 0.1% by weight or more, 0.5% by weight or more, 1% by weight or more, 2% by weight or more, 3% by weight or more, 4% by weight or more, 5% by weight or more, 6% by weight or more, 7% by weight or more, 8% by weight or more, or 9% by weight or more, relative to the total weight of the composition, and may be present in an amount of 10% by weight or less, 9% by weight or less, 8% by weight or less, 7% by weight or less, 6% by weight or less, 5% by weight or less, 4% by weight or less, 3% by weight or less, 2% by weight or less, 1% by weight or less, 0.5% by weight or less, 0.1% by weight or less, or 0.01% by weight or less.

[0030] In one implementation, the silicone emulsifier containing an ethoxyglucoside derivative may include at least one selected from caprylyl dimethicone ethoxyglucoside and dimethicone ethoxyglucoside.

[0031] In one embodiment, the oil phase may further include at least one selected from the group consisting of a hydrocarbon oil, a wax, and an additional emulsifier.

[0032] In one embodiment, the hydrocarbon oil may have 20 or less carbon atoms.

[0033] According to the present disclosure, by restricting the carbon number of the hydrocarbon oil to 20 or less, a light and refreshing feeling of use can be obtained even when using a solid stick formulation.

[0034] For example, the hydrocarbon oil may have 20 or less, 19 or less, 18 or less, 17 or less, 16 or less, or 15 or less carbon atoms.

[0035] In one implementation, the hydrocarbon oil may include at least one selected from the group consisting of isododecane and dicaprylyl carbonate.

[0036] In one implementation, the hydrocarbon oil may be present in an amount ranging from 5 to 12% by weight relative to the total weight of the solid stick.

[0037] For example, the content may be 5% by weight or more, 7% by weight or more, 9% by weight or more, or 11% by weight or more, and may be 12% by weight or less, 10% by weight or less, 8% by weight or less, or 6% by weight or less.

[0038] In one implementation, the melting point of the wax may be 50° C. or higher.

[0039] For example, the melting point of the wax may be equal to or lower than 100° C. If the melting point is lower than 50° C., the hardness of the composition will be low, and the solid stick preparation may crumble.

[0040] For example, the wax may include at least one selected from the group consisting of synthetic wax, ozokerite, and microcrystalline wax.

[0041] In one implementation, the wax may be 5-10% by weight based on the total weight of the solid stick.

[0042] For example, the wax may represent 5% by weight or more, 7% by weight or more, or 9% by weight or more, and may represent 10% by weight or less, 8% by weight or less, or 6% by weight or less, based on the total weight of the solid stick.

[0043] In one implementation, the additional emulsifier may include at least one of a silicone-based emulsifier and a polyglyceryl-based non-silicone emulsifier.

[0044] For example, the silicone-based emulsifier included in the additional emulsifier may be a silicone-based emulsifier containing polyglyceryl.

[0045] In one implementation, the silicone emulsifier may include at least one of lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone and polyglyceryl-3 polydimethylsiloxyethyl dimethicone.

[0046] In one embodiment, the polyglyceryl-based non-silicone emulsifier may include at least one selected from the group consisting of polyglyceryl-5 polyricinoleate, polyglyceryl-4 isostearate, polyglyceryl-3 polyricinoleate, polyglyceryl-2 dipolyhydroxystearate, diisostearoyl polyglyceryl-3 dimer dilinoleate, polyglyceryl-4 diisostearate / polyhydroxystearate / sebacate, polyglyceryl-2 isostearate, polyglyceryl-3 diisostearate, and polyglyceryl-2 isostearate / dimer dilinoleate copolymer.

[0047] In one implementation, the additional emulsifier may be present in an amount of 0.1 to 5% by weight relative to the total weight of the solid stick composition.

[0048] For example, the additional emulsifier may be present in an amount of at least 0.1%, at least 0.5%, at least 1%, at least 2%, at least 3%, or at least 4% by weight, and at most 5%, at most 4%, at most 3%, at most 2%, at most 1%, or at most 0.5% by weight, based on the total weight of the solid stick composition.

[0049] For example, the acidic component may be H + The main component is an organic acid having a carbon atom in the molecule, but is not limited to this.

[0050] In one implementation, the acidic component may be an organic acid.

[0051] In one implementation, the acidic component may include at least one selected from the group consisting of polyhydroxy acids (PHA), beta hydroxy acids (BHA), alpha hydroxy acids (AHA), pure vitamin C, and vitamin C derivatives.

[0052] According to the present disclosure, it is possible to blend various acidic components, which are water-soluble active ingredients, without limiting the pH, and in particular, it is expected that the external phase (oil phase) will have the effect of blocking unstable materials such as vitamin C, which is vulnerable to external oxygen and heat, thereby stabilizing the active ingredients.

[0053] In one implementation, the acidic component may include at least one selected from the group consisting of gluconolactone, salicylic acid, glycolic acid, lactic acid, citric acid, ascorbic acid, ethyl ascorbic acid, succinic acid, and ferulic acid.

[0054] In one implementation, the acidic component may be 1-15% by weight based on the total weight of the solid stick.

[0055] In one implementation, the composition may be free of PEG-based surfactants and silicone oils.

[0056] In one implementation, the composition may be a cosmetic composition.

[0057] The cosmetic composition according to the present disclosure may further include functional additives and components contained in general cosmetic compositions. The functional additives may include components selected from the group consisting of water-soluble vitamins, oil-soluble vitamins, polymeric peptides, polymeric polysaccharides, squalane, sphingolipids, and seaweed extracts.

[0058] The cosmetic composition according to the present disclosure may further contain components contained in general cosmetic compositions together with the functional additives as necessary. Other components may include oils and fats, moisturizers, emollients, emulsifiers, organic and inorganic pigments, organic powders, UV absorbers, preservatives, bactericides, antioxidants, plant extracts, pH adjusters, alcohols, colorants, fragrances, blood circulation promoters, cooling agents, antiperspirants, purified water, etc.

[0059] In one implementation, the composition may be a skin topical composition.

[0060] The topical skin preparation is a general term that may include anything that is applied to the outer skin, and may include cosmetics of various formulations.

[0061] The present disclosure will be described in more detail below with reference to the following examples. However, the following examples are merely illustrative for the purpose of aiding understanding of the present disclosure, and are not intended to limit the scope and spirit of the present disclosure.

[0062] [Example] Preparation of W / O high aqueous phase solid stick Solid stick compositions were prepared with various contents (unit: weight %) according to the following Table 1 (Table 1A and Table 1B). Specifically, they were prepared according to the following steps ABC.

[0063] Step A: [Oil, wax, silicone emulsifier containing ethoxyglucoside derivative, silicone emulsifier] part: Heat to 80℃ or higher and stir to dissolve.

[0064] Step B: [Acidic components, aqueous phase (35-85%)] Part: Heat to 80°C or higher and stir to dissolve.

[0065] Step C: Add the mixture prepared in step B to the mixture prepared in step A and stir.

[0066] In the following Table 1 (Table 1A and Table 1B), Examples 1 to 3 of the present disclosure used a silicone emulsifier containing an ethoxyglucoside derivative as the silicone elastomer.

[0067] [Table 1A]

[0068] [Table 1B]

[0069] [Example 4] Furthermore, a composition of Example 4 having all the following components was prepared. Upon observation, it was found that a stable formulation was made, the formulation had excellent stability, and had an excellent water-repellent feel when used. *Aqueous phase (80% by weight): Purified water (53.9%), sodium chloride (1%), gluconolactone (10%), salicylic acid (2%), tromethamine (5%), preservatives (1.1%), niacinamide (2%), propanediol (4.95%), oleanolic acid (0.05%) *Oil phase (20% by weight): Dicaprylyl carbonate 12.4925%, synthetic wax 7%, caprylyl dimethicone ethoxyglucoside 0.0075%, lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone 0.5%

[0070] [Comparative Example 4] Furthermore, a composition of Comparative Example 4 was prepared in the same manner as in Example 1, except that instead of the silicone emulsifier containing an ethoxyglucoside derivative, a PEG-based surfactant and a silicone oil, dimethicone / PEG-10 / 15 crosspolymer and dimethicone, were blended. Upon observation, it was found that a stable formulation was made, and the formulation had excellent stability and water-repellent usability. *Aqueous phase (85% by weight): Purified water (58.9%), sodium chloride (1%), gluconolactone (10%), salicylic acid (2%), tromethamine (5%), preservatives (1.1%), niacinamide (2%), propanediol (4.95%), oleanolic acid (0.05%) *Oil phase (15% by weight): Dimethicone 7.485%, Synthetic wax 7%, Dimethicone / PEG-10 / 15 crosspolymer 0.415%, Lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone 0.1%

Claims

1. A water-in-oil high aqueous phase solid stick composition comprising: The solid stick composition comprises an oil phase and an aqueous phase, The oil phase contains a silicone emulsifier containing an ethoxyglucoside derivative, The aqueous phase contains an acidic component, A water-in-oil type high aqueous phase solid stick composition, wherein the aqueous phase portion is 35% by weight or more based on the total weight of the composition.

2. 2. The water-in-oil, high internal aqueous phase solid stick composition of claim 1, wherein the pH of said composition is from 3 to 6.

3. 2. The water-in-oil type high internal aqueous phase solid stick composition according to claim 1, wherein the silicone emulsifier comprising the ethoxyglucoside derivative is present in an amount of 0.001 to 10% by weight based on the total weight of the composition.

4. 2. The water-in-oil high internal aqueous phase solid stick composition of claim 1, wherein the silicone emulsifier containing an ethoxyglucoside derivative comprises at least one selected from caprylyl dimethicone ethoxyglucoside and dimethicone ethoxyglucoside.

5. 2. The water-in-oil type high internal aqueous phase solid stick composition according to claim 1, wherein the oil phase further comprises at least one selected from the group consisting of a hydrocarbon oil, a wax and an additional emulsifier.

6. 6. A water-in-oil, high internal aqueous phase solid stick composition according to claim 5, wherein said hydrocarbon oil has 20 or less carbon atoms.

7. 6. The water-in-oil high internal aqueous phase solid stick composition of claim 5, wherein the hydrocarbon oil comprises at least one selected from the group consisting of isododecane and dicaprylyl carbonate.

8. 6. A water-in-oil, high internal aqueous phase solid stick composition according to claim 5, wherein said hydrocarbon oil represents from 5 to 12% by weight relative to the total weight of the composition.

9. 6. A water-in-oil, high internal aqueous phase solid stick composition according to claim 5, wherein the melting point of said wax is 50°C or higher.

10. 6. A water-in-oil, high internal aqueous phase solid stick composition according to claim 5, wherein said wax represents from 5 to 10% by weight relative to the total weight of the composition.

11. 6. The water-in-oil high internal aqueous phase solid stick composition of claim 5, wherein the additional emulsifier comprises at least one of a silicone-based emulsifier and a polyglyceryl-based non-silicone emulsifier.

12. 12. The water-in-oil high internal aqueous phase solid stick composition of claim 11, wherein the silicone emulsifier comprises at least one of lauryl polyglyceryl-3 polydimethylsiloxyethyl dimethicone and polyglyceryl-3 polydimethylsiloxyethyl dimethicone.

13. 12. The water-in-oil type high internal aqueous phase solid stick composition according to claim 11, wherein the polyglyceryl-based non-silicone emulsifier comprises at least one selected from the group consisting of polyglyceryl-5 polyricinoleate, polyglyceryl-4 isostearate, polyglyceryl-3 polyricinoleate, polyglyceryl-2 dipolyhydroxystearate, diisostearoyl polyglyceryl-3 dimer dilinoleate, polyglyceryl-4 diisostearate / polyhydroxystearate / sebacate, polyglyceryl-2 isostearate, polyglyceryl-3 diisostearate, polyglyceryl-2 isostearate / dimer dilinoleate copolymer.

14. 6. A water-in-oil, high internal aqueous phase solid stick composition according to claim 5, wherein said additional emulsifier is present in an amount ranging from 0.1 to 5% by weight relative to the total weight of the composition.

15. 2. The water-in-oil high internal aqueous phase solid stick composition of claim 1, wherein the acidic component comprises at least one selected from the group consisting of polyhydroxy acids (PHA), beta hydroxy acids (BHA), and alpha hydroxy acids (AHA).

16. 2. The water-in-oil high internal aqueous phase solid stick composition of claim 1, wherein the acidic component comprises at least one selected from the group consisting of gluconolactone, salicylic acid, glycolic acid, lactic acid, citric acid, ascorbic acid, ethyl ascorbic acid, succinic acid, and ferulic acid.

17. 2. A water-in-oil, high internal aqueous phase solid stick composition according to claim 1, wherein said acidic component is present in an amount of from 1 to 15% by weight based on the total weight of said composition.

18. 2. The water-in-oil, high internal aqueous phase solid stick composition of claim 1, wherein said composition is free of PEG-based surfactants and silicone oils.

19. 2. The water-in-oil type high internal aqueous phase solid stick composition according to claim 1, wherein the composition is a cosmetic composition.

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