Composition for improving skin around eyes and preparation method thereof

Abstract

The invention discloses a composition for improving skin around eyes and a preparation method thereof, the composition for improving skin around eyes comprises an oil phase, water and an emulsifier, and the emulsifier enables the oil phase and the water to form an oil-in-water structure; the oil phase comprises a component A and a component B, the component A and the component B are incompatible, the component A wraps the component B, the component B is grease, and the melting point of the component B is 15-26 DEG C; the component A is selected from one or more of octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane and dodecamethylcyclohexasiloxane; the component B is one or more of octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane and dodecamethylcyclohexasiloxane The composition for improving the skin around the eyes, provided by the invention, has the effect of good storage stability.

Description

Technical Field

[0001] The present invention belongs to the technical field of cosmetics. Specifically, it relates to a composition for improving the skin around the eyes and a preparation method thereof. Background Art

[0002] Eye cosmetics are professional care products designed specifically for the fragile area of the eyes where the skin thickness is only 0.3 to 0.5 millimeters. The eye area, being one of the thinnest parts of the human skin, is significantly characterized by the lack of sebaceous glands and sweat glands. Therefore, its natural moisturizing ability is relatively weak and it is extremely prone to fine lines due to dryness. At the same time, this area shows a high degree of sensitivity to various external stimuli. Given these characteristics, the research and development of eye cosmetics need to strictly follow the safety principle to ensure that the products have low irritation and also have multiple functions to meet the special care needs of the eye skin.

[0003] In addition, the skin around the eyes also faces challenges from multiple adverse factors. Under the influence of factors such as high temperature in summer, long - term eye use, and lack of sleep, the eye area is more prone to adverse conditions such as swelling, fatigue, and muscle tension. Therefore, in recent years, eye skin care products with a cooling effect have been highly favored by consumers because they can instantly soothe the discomfort of the eye skin, effectively improve common eye problems such as swelling and dark circles, and at the same time meet the dual needs of anti - aging and moisturizing.

[0004] When preparing eye skin care products with a cooling effect, oils with a melting point close to the human skin temperature are widely used. These oils usually have a melting point between 32 and 36 degrees Celsius, can naturally melt with body temperature after application, and generate a mild and non - irritating cooling sensation through an endothermic effect. At the same time, they can also strengthen the skin barrier and improve the moisturizing performance. However, the oil - in - water (O / W) emulsion system commonly used in eye cosmetics faces serious stability challenges when carrying these oils.

[0005] Specifically, due to the fluctuation of environmental temperature, the oils will undergo multiple melting and solidification cycles. This repeated phase change will cause the deterioration of the microstructure of the emulsion system: the oil crystals will irreversibly aggregate due to the phase - change stress, thus destroying the uniformity of the emulsion and leading to oil - phase separation. At the same time, the latent heat of phase change gradually decays with the increase in the number of cycles, making the product lose the "instantly melt upon contact with the skin" characteristic designed initially. This technical defect not only weakens the cooling effect, reduces the moisturizing performance, but may also cause the inactivation of active ingredients, thus severely limiting the practical application value and market competitiveness of the product. Summary of the Invention

[0006] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a composition for improving the skin around the eyes and a preparation method thereof.

[0007] To achieve the aforementioned invention objectives, the technical solutions adopted in the present invention include: On the one hand, a composition for improving the skin around the eyes, comprising: an oil phase, water, and an emulsifier, wherein the emulsifier enables the oil phase and water to form an oil-in-water structure; The oil phase includes component A and component B, component A and component B are incompatible, component A wraps component B, and component B is a grease with a melting point of 15 - 26 °C; Component A is selected from one or more of octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane.

[0008] In the present invention, component A and component B are incompatible and component A wraps component B. Whether component B melts or not, component B has no tendency to aggregate with each other. Thus, even after component B melts and solidifies repeatedly, it is still wrapped by component A, and the homogeneity of the composition system for improving the skin around the eyes will not be destroyed, which is beneficial to improving the stability of the composition for improving the skin around the eyes.

[0009] In the present invention, component A will volatilize after contacting human skin, and component B will melt after contacting human skin. Thus, both component A and component B have a cool feeling, so that the cool feeling of the composition for improving the skin around the eyes can be achieved by the combination of component A and component B.

[0010] Component A generates a cool feeling by its own volatilization, and the speed of generating the cool feeling is fast; component B generates a cool feeling by melting, and the speed of generating the cool feeling is slow but the duration is long. The present invention is achieved by the combination of component A and component B, which can take into account both the speed and duration of generating the cool feeling.

[0011] Meanwhile, by increasing the usage amount of component A, it is beneficial to reduce the usage amount of component B, and the greasiness of the composition for improving the skin around the eyes can be reduced.

[0012] In addition, by increasing the usage amount of component B, it is beneficial to reduce the usage amount of component A, and the composition for improving the skin around the eyes can be prevented from being overly cold.

[0013] Preferably, component B is selected from one or more of coconut oil, palm kernel oil, fractionated shea butter.

[0014] Preferably, the mass of component B is 0.2 - 0.25 times that of component A.

[0015] Preferably, calculated by weight, the usage amounts of each component are as follows: Water 50 - 70 parts, Component A 20 - 30 parts, Emulsifier 1 - 3 parts.

[0016] Preferably, it further comprises an oil-soluble adjuvant and a water-soluble adjuvant, and the oil-soluble adjuvant is dissolved in the component A.

[0017] In the prior art, for oil-in-water cosmetics such as emulsions and creams, due to the small amount of the oil phase used, the amount of the oil-soluble adjuvant used is limited, and most of the adjuvants in the cosmetics are water-soluble adjuvants.

[0018] In the present invention, the oil phase can dissolve the oil-soluble adjuvant, and the water phase can dissolve the water-soluble adjuvant. The selection limitation of the adjuvant in terms of water solubility and oil solubility is greatly reduced compared with the prior art, so that the applicable range of the adjuvant in the composition system for improving the eye contour skin can be increased.

[0019] Preferably, the water-soluble adjuvant is selected from one or more of caffeine, oat kernel extract, sturgeon roe extract, and ginseng extract.

[0020] Preferably, the oil-soluble adjuvant is selected from one or more of retinol, vitamin E, ubiquinone, and rosehip oil.

[0021] Preferably, the mass of the oil-soluble adjuvant is 0.1 to 0.5 times that of the component A.

[0022] Preferably, the mass of the water-soluble adjuvant is 0.01 to 0.2 times that of the water.

[0023] On the other hand, a preparation method of a composition for improving the eye contour skin comprises the following steps: Preparing an oil phase: mixing the component A and the component B and heating to melt, and then, after heating and melting, cooling to a temperature ≤20°C during stirring to obtain the oil phase; Emulsifying: emulsifying the emulsifier, the oil phase, and the water at a temperature ≤20°C, and then restoring to room temperature to obtain the composition for improving the eye contour skin.

[0024] In the prior art, in the emulsification process of oil-in-water cosmetics, to ensure the full dispersion of the oil phase, the emulsification temperature is usually above 60°C. When there are volatile components in the adjuvant, a balance needs to be made between the emulsification temperature and the volatility of the adjuvant. The addition of the adjuvant actually needs to be strictly controlled, and the volatile components in the adjuvant are inevitably lost.

[0025] In the present invention, the emulsification temperature ≤20°C, the volatility of the volatile components in the oil-soluble adjuvant and the water-soluble adjuvant is reduced, and the component A wrapping the component B is in a liquid state. In the emulsification process, there is no need to balance the volatility of the adjuvant and the temperature required for emulsification, which is beneficial to reducing the production difficulty and improving the utilization rate of the volatile components in the adjuvant.

[0026] Preferably, in the step of preparing the oil phase, the stirring speed ≥2000 revolutions / min.

[0027] In the present invention, in the step of preparing the oil phase, the stirring speed is ≥ 2000 revolutions per minute, which is beneficial to the formation of fine particles of component B during the solidification process, thus facilitating the uniform dispersion of component B, and further improving the uniformity of the composition system for improving the eye contour skin.

[0028] The introduction of the main raw materials in the present invention is as follows: Caffeine: Caffeine is one of the core ingredients for eye care. It mainly improves dark circles and swelling by promoting local microcirculation. It can constrict blood vessels, reduce blood stasis, and thus relieve the bluish-black eye circles caused by staying up late or fatigue. At the same time, caffeine has antioxidant properties, can neutralize free radicals, and delay the aging of the eye contour skin. Its strong permeability can help drain excess moisture, making the eye contour skin firmer. It is especially suitable to be paired with massage techniques to enhance the swelling-reducing effect. In addition, caffeine can also stimulate fat decomposition and has a certain improvement effect on fat-type eye bags, but long-term use is required to see the effect.

[0029] Oat kernel extract: Oat kernel extract is rich in β-glucan, avenanthramides, and polyphenols, and has excellent soothing and repairing abilities, especially suitable for sensitive, dry, or damaged eye contour skin. It can effectively relieve the redness, itching and other discomforts caused by allergies, dermatitis, or external stimuli, while enhancing the skin barrier function and reducing water loss. The polysaccharide components in oats have good moisturizing properties and can lock water for a long time to relieve dry fine lines. In addition, its mild nature makes it suitable for post-medical aesthetic care to help repair the fragile eye contour skin after laser or microneedling.

[0030] Sturgeon caviar extract: Sturgeon caviar extract is a high-end skin care ingredient, rich in proteins, amino acids, nucleic acids, and minerals, and can provide the nutrients required for cell repair. Although its external permeability is limited, it can still play an antioxidant role, reduce the damage of free radicals to the eye contour skin, and delay aging. Its rich lipid components can deeply nourish dry skin, improve fine lines, and at the same time enhance the luxury and user experience of the product. Sturgeon caviar extract is often used in high-end anti-aging eye creams and is paired with ingredients such as peptides or retinol to enhance the anti-wrinkle effect.

[0031] Ginseng extract: Ginseng extract contains various active ingredients such as ginsenosides, polyphenols, and polysaccharides, which can promote blood circulation in the eye contour, improve dullness and swelling caused by poor microcirculation. Its antioxidant and anti-glycation effects can reduce collagen degradation and delay the relaxation and wrinkle formation in the eye contour. Ginseng extract can also enhance skin metabolism, making the eye contour skin firmer and more elastic.

[0032] Retinol (vitamin A derivative): Retinol is a star ingredient in the anti-aging field. It can accelerate keratin metabolism, stimulate the production of collagen and elastic fibers, and significantly reduce fine lines and wrinkles in the eye contour. It can also improve the skin texture, making the eye contour skin smoother and firmer.

[0033] Vitamin E (Tocopherol): Vitamin E is a powerful antioxidant that can neutralize free radicals, reduce oxidative damage to the skin around the eyes caused by external factors such as ultraviolet rays and pollution, and delay aging. Its fat-soluble property enables it to deeply moisturize dry skin, improve dry lines, and enhance the skin barrier function. Vitamin E is often used in combination with vitamin C to synergistically enhance the antioxidant effect, promote collagen synthesis at the same time, and make the skin around the eyes brighter and firmer. In addition, it can also stabilize other active ingredients (such as retinol) and extend the service life of skin care products.

[0034] Ubiquinone (Coenzyme Q10): Ubiquinone is a key component of cellular energy metabolism. Topical application can reduce the damage of oxidative stress to the skin around the eyes, improve skin laxity and fine lines. Its antioxidant ability can delay collagen loss, making the skin around the eyes firmer and more elastic. Ubiquinone has a mild nature and is suitable for anti-aging of sensitive skin, but its stability is poor and it is easily damaged by light and heat. Therefore, microencapsulation technology or stabilizers (such as vitamin E) need to be used to maintain its activity. Long-term use can enhance the youthful state of the skin around the eyes and reduce the sense of fatigue.

[0035] Rosehip oil: Rosehip oil is rich in linoleic acid, linolenic acid and vitamin A, which can promote skin repair, improve pigmentation and scars around the eyes, and make the skin color more uniform. Its light oil property is easy to absorb and will not cause a heavy feeling, making it suitable for oily skin. Rosehip oil also has antioxidant effects, which can reduce free radical damage and delay aging. However, due to its easy oxidation, it needs to be stored away from light or combined with antioxidants (such as vitamin E) to extend the shelf life. It is often used in eye care products for lightening dark circles, moisturizing and anti-wrinkle.

[0036] Compared with the prior art, the advantages of the present invention include: (1) For a composition for improving the skin around the eyes provided by the present invention, component B has no tendency to aggregate with each other during repeated melting and solidification processes, and component B can always be wrapped by component A. Therefore, the homogeneity of the composition system for improving the skin around the eyes will not be destroyed, which is beneficial to improving the stability of the composition for improving the skin around the eyes; (2) For a composition for improving the skin around the eyes provided by the present invention, which is achieved by the combination of component A and component B, it can take into account both the speed and duration of the generation of the cool feeling. Detailed implementation mode

[0037] To enable those skilled in the art to understand the features and effects of the present application, the following is a general description and definition of the terms and phrases mentioned in the specification and claims. Unless otherwise specified, all technical and scientific terms used in the text have the ordinary meaning understood by those skilled in the art for the present application. In case of conflict, the definition in this specification shall prevail.

[0038] The theories or mechanisms described and disclosed herein, whether right or wrong, shall not in any way limit the scope of this application, that is, the content of this application can be implemented without being limited by any specific theory or mechanism.

[0039] In this document, "this application" is the same as "this invention" and "this disclosure".

[0040] In this document, the terms "a", "an", "one", or similar expressions are used to describe the components and technical features of this application. Such descriptions are merely for convenience of expression and to give a general meaning to the scope of this application. Therefore, such descriptions should be understood to include one or at least one, and the singular also includes the plural, unless clearly indicated otherwise.

[0041] In this document, "or a combination thereof" means "or any combination thereof", and "any one", "any kind", "any one" means "any one", "any kind", "any one".

[0042] In this document, the terms "comprising", "including", "having", "containing", or any other similar terms are all open-ended transitional phrases, which are intended to cover non-exclusive inclusions. For example, a composition or an article containing multiple elements is not limited to only the elements listed herein, but may also include other elements that are not explicitly listed but are usually inherent in the composition or the article. In addition, unless otherwise clearly stated to the contrary, the term "or" means an inclusive "or", rather than an exclusive "or". For example, any of the following situations satisfies the condition "A or B": A is true (or exists) and B is false (or does not exist), A is false (or does not exist) and B is true (or exists), A and B are both true (or exist). In addition, in this document, the interpretations of the terms "comprising", "including", "having", "containing" should be regarded as having specifically disclosed and simultaneously covering closed transitional phrases such as "consisting of", "composed of", "the balance being", etc., as well as transitional phrases such as "substantially consisting of", "mainly composed of", "mainly composed of", "basically containing", "basically consisting of", "basically composed of", "essentially containing".

[0043] In this text, all features or conditions defined in the form of numerical ranges or percentage ranges, such as numerical values, quantities, contents, and concentrations, are only for the sake of brevity and convenience. Accordingly, the description of a numerical range or percentage range should be regarded as having covered and specifically disclosed all possible sub-ranges and individual numerical values within the range (including integers and fractions), especially integer numerical values. For example, a range description of "1.0 to 8.0" or "between 1.0 and 8.0" or "between 1.0 and 8.0" should be regarded as having specifically disclosed all sub-ranges such as 1.0 to 8.0, 1.0 to 7.0, 2.0 to 8.0, 2.0 to 6.0, 3.0 to 6.0, 4.0 to 8.0, 3.0 to 8.0, etc., and should be regarded as covering the endpoint values, especially sub-ranges defined by integer numerical values, and should be regarded as having specifically disclosed individual numerical values within the range such as 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, etc. Unless otherwise specified, the foregoing interpretation method applies to all contents of this application throughout the text, regardless of the breadth of the range.

[0044] If a quantity, concentration, or other numerical value or parameter is expressed as a range, a preferred range (or a better range), or a series of upper and lower limits, it should be understood that all ranges formed by any pair of the upper limit or preferred value (or better value) of the range and the lower limit or preferred value (or better value) of the range have been specifically disclosed herein, regardless of whether these ranges are separately disclosed or not. In addition, when a numerical range is mentioned in this text, unless otherwise stated, the range should include its endpoints and all integers and fractions within the range.

[0045] In this text, on the premise that the purpose of the invention can be achieved, a numerical value should be understood to have the precision of the significant digits of that numerical value. For example, the number 40.0 should be understood to cover the range from 39.50 to 40.49.

[0046] Unless otherwise specified, in this application, a compound refers to a chemical substance formed by the connection of two or more elements through chemical bonds, including small molecule compounds and high molecular compounds, and is not limited thereto. In this text, a compound is not limited to a single chemical substance when interpreted, but can also be interpreted as a group of chemical substances with the same composition or the same properties.

[0047] Unless otherwise specified, in this application, parts by weight represent relative weight parts in a composition, which can be any weight unit, such as but not limited to weight units such as kilograms, kilograms, grams, pounds, etc. For example, 100 parts by weight of polyphenylene ether resin means that it can be 100 kilograms of polyphenylene ether resin or 100 pounds of polyphenylene ether resin.

[0048] It should be understood that the features disclosed in each embodiment of this text can be arbitrarily combined to form the technical solutions of this application, as long as there is no contradiction in the combination of these features.

[0049] The present application will be described below with specific embodiments and examples. It should be understood that these specific embodiments and examples are merely illustrative and are not intended to limit the scope and use of the present application.

[0050] Unless otherwise specified, the methods, reagents, and conditions used in the following preparation examples, comparative examples, and examples are conventional methods, reagents, and conditions in the art.

[0051] In the following descriptions: Table 1 Melting Points of Several Substances Substance Melting point / °C Coconut oil 24.2 Fractionated coconut oil 15.2 Palm kernel oil 24.7 Fractionated shea butter 25.8 Olive oil 4.8 Vaseline 38.2 Example Example 1 The raw materials used in this example include, by weight: 50 parts of water, 10 parts of octamethylcyclotetrasiloxane, 10 parts of decamethylcyclopentasiloxane, 2 parts of fractionated coconut oil, 2 parts of fractionated shea butter, and 1 part of polysorbate - 20.

[0052] The preparation method of this example includes: S1. Heat octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, fractionated coconut oil, and fractionated shea butter together to 60°C, and then cool to 10°C under the condition of a stirring speed of 2000 revolutions / min to obtain an oil phase; S2. At 10°C, mix polysorbate - 20, the oil phase, and water and stir - emulsify them at a stirring speed of 1500 revolutions / min for 5 minutes, and then restore to room temperature at room temperature to obtain a composition for improving the skin around the eyes.

[0053] Example 2 The raw materials used in this example include, by weight: 50 parts of water, 20 parts of octamethylcyclotetrasiloxane, 0.5 part of ginseng extract, 4 parts of coconut oil, 2 parts of rosehip oil, 1 part of polysorbate - 20, 1 part of sodium hyaluronate, 1.5 parts of glycerol, and 0.5 part of 1,2 - pentanediol.

[0054] The preparation method of this example includes: S1. Heat octamethylcyclotetrasiloxane and coconut oil together to 60°C, then cool to 15°C under the condition of a stirring speed of 2000 revolutions / min, and then add rosehip oil and stir for 5 minutes at a stirring speed of 800 revolutions / min to obtain an oil phase; S2. At 15°C, mix polysorbate - 20, ginseng extract, the oil phase, water, sodium hyaluronate, glycerol, and 1,2 - pentanediol and stir - emulsify them at a stirring speed of 1500 revolutions / min for 5 minutes, and then restore to room temperature at room temperature to obtain a composition for improving the skin around the eyes.

[0055] Example 3 The raw materials used in this example include, by weight: 60 parts of water, 25 parts of decamethylcyclopentasiloxane, 6 parts of oat kernel extract, 5.75 parts of palm kernel oil, 2 parts of vitamin E, 2 parts of polysorbate - 20, 1.5 parts of sodium hyaluronate, 3 parts of glycerol, and 1.2 parts of 1,2 - pentanediol.

[0056] The preparation method of this example includes: S1. Heat decamethylcyclopentasiloxane and palm kernel oil together to 60 °C, then cool down to 15 °C under the condition of a stirring speed of 2500 rpm, and then add vitamin E and stir for 5 minutes at a stirring speed of 800 rpm to obtain an oil phase; S2. At 15 °C, mix polysorbate - 20, oat kernel extract, oil phase, water, sodium hyaluronate, glycerol, and 1,2 - pentanediol and carry out stirring and emulsification. The stirring speed is 1500 rpm and the stirring duration is 5 minutes, and then restore to room temperature at room temperature to obtain a composition for improving the skin around the eyes.

[0057] Example 4 The raw materials used in this example include, by weight: 70 parts of water, 30 parts of dodecamethylcyclohexasiloxane, 14 parts of sturgeon roe extract, 7.5 parts of fractionated shea butter, 3 parts of ubiquinone, 2 parts of polysorbate - 20, 2.1 parts of sodium hyaluronate, 4.9 parts of glycerol, and 2.1 parts of 1,2 - pentanediol.

[0058] The preparation method of this example includes: S1. Heat dodecamethylcyclohexasiloxane and fractionated shea butter together to 60 °C, then cool down to 20 °C under the condition of a stirring speed of 3000 rpm, and then add ubiquinone and stir for 5 minutes at a stirring speed of 800 rpm to obtain an oil phase; S2. At 20 °C, mix polysorbate - 20, sturgeon roe extract, oil phase, water, sodium hyaluronate, glycerol, and 1,2 - pentanediol and carry out stirring and emulsification. The stirring speed is 1500 rpm and the stirring duration is 5 minutes, and then restore to room temperature at room temperature to obtain a composition for improving the skin around the eyes.

[0059] Example 5 The raw materials used in this example include, by weight: 70 parts of water, 15 parts of octamethylcyclotetrasiloxane, 15 parts of dodecamethylcyclohexasiloxane, 1 part of caffeine, 2 parts of oat kernel extract, 2 parts of sturgeon roe extract, 2 parts of ginseng extract, 2 parts of coconut oil, 2 parts of palm kernel oil, 2 parts of fractionated shea butter, 2 parts of retinol, 2 parts of vitamin E, 2 parts of ubiquinone, 2 parts of rosehip oil, 2 parts of polysorbate - 20, 2.1 parts of sodium hyaluronate, 4.9 parts of glycerol, and 2.1 parts of 1,2 - pentanediol.

[0060] The preparation method of this example includes: S1. Heat octamethylcyclotetrasiloxane, dodecamethylcyclohexasiloxane, coconut oil, palm kernel oil, and fractionated shea butter together to 60 °C, then cool down to 15 °C under the condition of a stirring speed of 2500 revolutions per minute. Then add retinol, vitamin E, ubiquinone, and rosehip oil and stir for 5 minutes at a stirring speed of 800 revolutions per minute to obtain an oil phase. S2. At 15 °C, mix polysorbate - 20, caffeine, oat kernel extract, sturgeon roe extract, ginseng extract, the oil phase, water, sodium hyaluronate, glycerol, and 1,2 - pentanediol and carry out stirring and emulsification. The stirring speed is 1500 revolutions per minute and the stirring duration is 5 minutes. Then restore to room temperature at room temperature to obtain a composition for improving the eye - surrounding skin.

[0061] Example 6 The difference between this example and Example 5 lies in: 10 parts of dodecamethylcyclohexasiloxane, 2.5 parts of fractionated shea butter, and 1.5 parts of rosehip oil.

[0062] Example 7 The difference between this example and Example 5 lies in: 5 parts of dodecamethylcyclohexasiloxane, 1 part of fractionated shea butter, 1 part of ubiquinone, and 1 part of rosehip oil.

[0063] Table 2 Differences in raw materials used in Examples 1 - 7 Substance / part Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 Water 50 50 60 70 70 70 70 Octamethylcyclotetrasiloxane 10 20 \ \ 15 15 15 Decamethylcyclopentasiloxane 10 \ 25 \ \ \ \ Dodecamethylcyclohexasiloxane \ \ \ 30 15 10 5 Caffeine \ \ \ \ 1 1 1 Oat kernel extract \ \ 6 \ 2 2 2 Sturgeon roe extract \ \ \ 14 2 2 2 Ginseng extract \ 0.5 \ \ 2 2 2 Fractionated coconut oil 2 \ \ \ \ \ \ Coconut oil \ 4 \ \ 2 2 2 Palm kernel oil \ \ 5.75 \ 2 2 2 Fractionated shea butter 2 \ \ 7.5 2 2.75 1 Retinol \ \ \ \ 2 2 2 Vitamin E \ \ 7.5 \ 2 2 2 Ubiquinone \ \ \ 15 2 2 1 Rosehip oil \ 2 \ \ 3 1.5 1 Polysorbate - 20 1 1 2 3 2 2 2 Sodium hyaluronate \ 1.0 1.5 2.1 2.1 2.1 2.1 Glycerol \ 1.5 3.0 4.9 4.9 4.9 4.9 1,2 - Pentanediol \ 0.5 1.2 2.1 2.1 2.1 2.1 Comparative example Comparative example 1 The difference between this comparative example and Example 2 is that the preparation method of this comparative example includes: Heat octamethylcyclotetrasiloxane, coconut oil, polysorbate - 20, and water together to 60 °C, then cool down to 45 °C under the condition of a stirring speed of 2000 revolutions per minute. Then add ginseng extract, rosehip oil, sodium hyaluronate, glycerol, and 1,2 - pentanediol and stir at a stirring speed of 800 revolutions per minute, and restore to room temperature at room temperature to obtain a composition for improving the eye - surrounding skin.

[0064] Comparative example 2 The difference between this comparative example and Example 2 is that the usage amount of coconut oil is 6 parts.

[0065] Comparative Example 3 The difference between this comparative example and Example 2 is that coconut oil is replaced with 4 parts of olive oil.

[0066] Comparative Example 4 The difference between this comparative example and Example 2 is that coconut oil is replaced with 4 parts of petrolatum.

[0067] Comparative Example 5 The difference between this comparative example and Example 2 is that coconut oil is replaced with 4 parts of tricaprylin.

[0068] Comparative Example 6 The difference between this comparative example and Example 2 is that: S1. Octamethylcyclotetrasiloxane and coconut oil are heated together to 60 °C, then cooled to 15 °C under the condition of a stirring speed of 800 rpm, and then rosehip oil is added and stirred for 5 min at a stirring speed of 800 rpm to obtain an oil phase; S2. At 15 °C, polysorbate-20, ginseng extract, oil phase, water, sodium hyaluronate, glycerol, and 1,2-pentanediol are mixed and stirred for emulsification. The stirring speed is 1500 rpm, and the stirring duration is 5 min, and then it is restored to room temperature at room temperature to obtain a composition for improving the eye contour skin.

[0069] Performance Test (1) The compositions for improving the eye contour skin prepared in Examples 1 to 7 and Comparative Examples 1 to 6 are tested as follows: Test item Test content Circulation stability In the circulation tank, the temperature is stored for 1 month in an alternating manner of 0 °C and 45 °C, and the storage temperature is alternated every 3 hours; A, excellent; B, good and acceptable; C, separation (2) The compositions for improving the eye contour skin prepared in Examples 1 to 7 and Comparative Example 1 are tested as follows: Test item Test content Auxiliary material loss rate / % Detect the total amount of water - soluble auxiliary materials and oil - soluble auxiliary materials in the composition for improving the eye - surrounding skin, and calculate the total loss rate of water - soluble auxiliary materials and oil - soluble auxiliary materials (3) The composition for improving the eye contour skin prepared in Example 6 is tested as follows: Test Results Table 3 Partial performance parameters of the compositions for improving the eye contour skin prepared in Examples 1 to 7 and Comparative Examples 1 to 6 Test example Circulation stability Auxiliary material loss rate / % Smearing feeling Example 1 A 2.23 Comfortable Example 2 A 1.18 Comfortable Example 3 A 1.33 Comfortable Example 4 A 1.41 Comfortable Example 5 A 1.21 Comfortable Example 6 A 1.35 Comfortable Example 7 A 1.44 Comfortable Comparative example 1 C 2.87 Not easy to smear evenly Comparative example 2 B \ Greasy feeling Comparative example 3 C \ Short duration of cool feeling Comparative example 4 B \ Too cool Comparative example 5 C \ Not easy to smear evenly Comparative example 6 B \ Not easy to smear evenly Table 4 Efficacy of the composition for improving the eye contour skin prepared in Example 6 It should be understood that the above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention pertains, without departing from the concept of the present invention, several simple deductions or substitutions can still be made. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A composition for improving the skin around the eyes, characterized in that, Comprising: An oil phase, water, and an emulsifier, wherein the emulsifier enables the oil phase and water to form an oil-in-water structure; The oil phase comprises component A and component B, component A and component B are incompatible, component A encapsulates component B, and component B is a grease with a melting point of 15 - 26 °C; Component A is selected from one or more of octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, and dodecamethylcyclohexasiloxane.

2. The composition for improving the skin around eyes according to claim 1, wherein: Component B is selected from one or more of coconut oil, palm kernel oil, fractionated shea butter.

3. The composition for improving the skin around eyes according to claim 1, wherein: The mass of component B is 0.2 - 0.25 times that of component A.

4. A composition for improving the skin around the eyes according to claim 3, characterized in that: By weight, the amounts of each component are as follows: Water 50 - 70 parts, Component A 20 - 30 parts, Emulsifier 1 - 3 parts.

5. A composition for improving the skin around the eyes according to claim 1, characterized in that: It further comprises an oil-soluble adjuvant and a water-soluble adjuvant, and the oil-soluble adjuvant is soluble in component A.

6. The composition for improving the skin around eyes according to claim 5, wherein: The water-soluble adjuvant is selected from one or more of caffeine, oat kernel extract, sturgeon roe extract, and ginseng extract.

7. A composition for improving the skin around the eyes according to claim 5, characterized in that: The oil-soluble adjuvant is selected from one or more of retinol, vitamin E, ubiquinone, and rosehip oil.

8. A composition for improving the skin around the eyes according to claim 5, characterized in that: The mass of the oil-soluble adjuvant is 0.1 - 0.5 times that of component A; and / or, the mass of the water-soluble adjuvant is 0.01 - 0.2 times that of the water.

9. A method for preparing a composition for improving the skin around the eyes as described in claim 1, characterized in that: Comprising the following steps: Preparing the oil phase: Mix component A and component B and heat to melt, then cool to a temperature ≤ 20 °C during stirring to obtain the oil phase; Emulsifying: At a temperature ≤ 20 °C, mix the emulsifier, oil phase, and water and then perform emulsification, and then restore to room temperature to obtain a composition for improving the skin around the eyes.

10. The preparation method according to claim 9, characterized in that: In the step of preparing the oil phase, the stirring speed ≥ 2000 revolutions / min.

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