An emulsion containing golden sunflower essential oil and its preparation method

Abstract

This invention discloses an emulsion containing sunflower essential oil and its preparation method, belonging to the field of cosmetic technology. The emulsion, by weight, comprises the following ingredients: 5-11 parts oil phase, 0.8-2.5 parts emulsifier, 1.2-4.8 parts active ingredient, 0.8-1.8 parts auxiliary agent, and 80-110 parts aqueous phase. The active ingredient includes sunflower essential oil, resveratrol, and purslane extract. This invention, through scientific formulation design, achieves synergistic effects among multiple functional ingredients, resulting in an emulsion that not only has good stability and skin feel but also significant antioxidant, anti-inflammatory, and moisturizing effects. It is suitable for sensitive skin and has broad market prospects and application value.

Description

Technical Field

[0001] This invention belongs to the field of cosmetic technology, and in particular relates to an emulsion containing sunflower essential oil and its preparation method. Background Technology

[0002] Emulsions, as an important dosage form in cosmetics, are widely used in skin care, moisturizing, whitening, and anti-aging. In recent years, with consumers paying increasing attention to natural ingredients and functional products, the market demand for emulsions with plant extracts has been rising. However, many problems still exist with current emulsion products on the market:

[0003] 1. Limited ingredients or limited efficacy: Many lotions are mainly based on basic moisturizing ingredients and lack targeted skincare active ingredients, making it difficult to meet consumers' needs for multiple effects such as anti-oxidation, anti-inflammation, and soothing.

[0004] 2. Poor formula stability: Emulsions are thermodynamically unstable systems and are prone to problems such as layering and demulsification, especially when plant essential oils or other active ingredients are added.

[0005] 3. Poor skin feel: Some lotions have a thick texture and absorb slowly, which can leave a sticky feeling after use, affecting the user experience.

[0006] 4. Highly irritating: Some lotions contain fragrances and other ingredients that may cause discomfort to people with sensitive skin.

[0007] 5. Insufficient antioxidant and anti-inflammatory capabilities: Modern environmental stress leads to increased oxidative stress in the skin, and existing lotions generally have weak antioxidant and anti-inflammatory properties.

[0008] Therefore, developing a lotion that combines good stability, excellent skin feel, and significant antioxidant and anti-inflammatory effects has become an important direction for current cosmetic research and development. Summary of the Invention

[0009] To address the aforementioned technical problems, this invention proposes an emulsion containing sunflower essential oil and its preparation method. The emulsion disclosed in this invention not only possesses excellent stability and skin feel but also exhibits significant antioxidant, anti-inflammatory, and moisturizing effects. Furthermore, through scientific formulation design, it achieves synergistic effects among multiple functional ingredients, overcoming several technical bottlenecks inherent in traditional emulsions, and possesses broad market prospects and application value.

[0010] To achieve the above objectives, the present invention provides the following technical solution:

[0011] One of the technical solutions of this invention:

[0012] An emulsion containing golden sunflower essential oil comprises, by weight, the following ingredients: 5-11 parts oil phase, 0.8-2.5 parts emulsifier, 1.2-4.8 parts active ingredient, 0.8-1.8 parts auxiliary agent, and 80-110 parts aqueous phase;

[0013] The active ingredients include: golden sunflower essential oil, resveratrol, and purslane extract.

[0014] Beneficial effects: The three active ingredients used in this invention—golden sunflower essential oil, resveratrol, and purslane extract—each have unique effects in the emulsion system and work synergistically to enhance the skin care performance of the product.

[0015] Among them, golden sunflower essential oil is rich in natural aromatic components and bioactive substances, which have good soothing and anti-inflammatory effects, effectively relieving skin sensitivity symptoms. It also has certain antibacterial capabilities, which help improve the skin microenvironment and give the lotion a natural fragrance, enhancing the user experience.

[0016] Resveratrol is a powerful antioxidant that can effectively scavenge free radicals, inhibit oxidative stress, delay skin aging, and also has anti-inflammatory and collagen-boosting effects, enhancing the skin barrier function.

[0017] Purslane extract is rich in flavonoids, polysaccharides, and alkaloids, and has broad-spectrum anti-inflammatory, soothing, repairing, and moisturizing effects. It has a significant soothing effect on sunburn repair, redness, and stinging, and can enhance the skin's resistance to external stimuli.

[0018] The three ingredients work synergistically in the formula to form a multi-functional network of "antioxidant, anti-inflammatory, soothing, and moisturizing" effects. Resveratrol provides basic antioxidant protection, purslane extract further enhances the anti-inflammatory effect, and sunflower oil provides gentle local soothing effects, making the lotion more protective against environmental pollution, UV rays, and other external stressors. Furthermore, the three ingredients work synergistically to enhance the formula's stability. Sunflower oil has a small molecular weight, making it easy to penetrate and non-greasy. Resveratrol, after proper formulation, is evenly dispersed in the oil phase to prevent precipitation. The water-soluble polysaccharides in purslane extract form a thin protective film in the aqueous phase, improving moisturizing properties without affecting the skin feel. Overall, the lotion has a light, easily absorbed, and non-sticky texture, greatly enhancing user comfort. Meanwhile, the polyphenols and polysaccharides in resveratrol and purslane extract help stabilize the emulsion system and prevent stratification and emulsion breakdown, while the natural antibacterial properties of sunflower essential oil can partially replace chemical preservatives, reducing the risk of irritation to sensitive skin, thereby enhancing product safety and storage stability.

[0019] In summary, the three active ingredients in this invention not only perform their respective functions, but also significantly improve the overall performance of the emulsion through scientific formulation and synergistic effects, making it superior to traditional products in terms of efficacy, stability, and skin feel, thus meeting consumers' demand for natural, safe, and effective skincare products.

[0020] Optionally, the mass ratio of the golden sunflower essential oil, resveratrol and purslane extract is 0.5-2:0.2-0.8:0.5-2.

[0021] Optionally, the golden sunflower essential oil is prepared by supercritical carbon dioxide extraction.

[0022] Furthermore, the preparation process of the supercritical carbon dioxide extraction method is as follows:

[0023] Select dried golden sunflower flowers and then pulverize them; place the pulverized golden sunflower flowers under supercritical carbon dioxide extraction conditions of 40-60℃, 10MPa-30MPa, and 15-30L / min; separate under reduced pressure to obtain the golden sunflower essential oil.

[0024] Optionally, the extraction process of the purslane extract is as follows:

[0025] Purslane was dried and pulverized; water extraction was performed at a material-to-liquid ratio of 1:8 to 1:12 g / mL (i.e., 8 to 12 mL of purified water was added per gram of raw material), followed by filtration to obtain filtrate 1 and filter residue; the filter residue was then subjected to alcohol extraction at a material-to-liquid ratio of 1:6 to 1:10 g / mL, followed by filtration to obtain filtrate 2; filtrate 1 and filtrate 2 were mixed, concentrated under reduced pressure, and then spray-dried to obtain the purslane extract.

[0026] Furthermore, the drying temperature is 40-50℃, and the drying is carried out to a constant weight; the pulverization is carried out to a particle size of 20-60 mesh.

[0027] Furthermore, the temperature during the water extraction process is 80–90°C, and the water extraction time is 1.5–2 hours.

[0028] Furthermore, the temperature during the alcohol extraction process is 60–70°C, and the extraction time is 1–1.5 h.

[0029] Furthermore, the conditions during the spray drying process are: inlet air temperature 160-180℃, outlet air temperature 80-100℃.

[0030] Optionally, the aqueous phase includes deionized water and a humectant.

[0031] Furthermore, the moisturizer is at least one of glycerin, propylene glycol, and butylene glycol.

[0032] Optionally, the oil phase comprises squalane and decanoic acid triglyceride in a mass ratio of 1:1.

[0033] Optionally, the emulsifier includes at least one of lecithin, polysorbate-20, and glyceryl stearate;

[0034] Optionally, the additives include preservatives and thickeners.

[0035] Furthermore, the preservative is phenoxyethanol or methylisothiazolinone.

[0036] Furthermore, the thickener is at least one of hydroxyethyl cellulose, polyacrylamide and its derivatives, xanthan gum or magnesium aluminum silicate.

[0037] The second technical solution of this invention:

[0038] A method for preparing an emulsion containing sunflower essential oil includes the following steps:

[0039] Weigh the raw materials according to the weight proportions;

[0040] An emulsifier was added to the aqueous phase and homogenized once to obtain mixture 1;

[0041] The active ingredient was added to the oil phase and homogenized twice to obtain mixture 2;

[0042] Mix the mixture 1 and the mixture 2, then add an auxiliary agent, and then add a pH adjuster (citric acid or sodium hydroxide) to adjust the pH value to 4.5-6.5. Homogenize three times, and finally let stand to remove bubbles to obtain the emulsion containing golden sunflower essential oil.

[0043] Optionally, the conditions for the first, second, and third homogenizations are all 6000-8500 rpm for 3-5 minutes.

[0044] Optionally, the conditions for static degassing are:

[0045] Degas the emulsion under vacuum for 10–20 minutes to remove air bubbles.

[0046] Compared with the prior art, the present invention has the following advantages and technical effects:

[0047] This invention achieves synergistic effects among multiple functional ingredients through scientific formulation design, resulting in an emulsion that not only has good stability and skin feel, but also significant antioxidant, anti-inflammatory and moisturizing effects. It is suitable for people with sensitive skin and has broad market prospects and promotion and application value. Detailed Implementation

[0048] Various exemplary embodiments of the present invention will now be described in detail. This detailed description should not be considered as a limitation of the present invention, but rather as a more detailed description of certain aspects, features, and embodiments of the present invention.

[0049] It should be understood that the terminology used in this invention is merely for describing particular embodiments and is not intended to limit the invention. Furthermore, with respect to numerical ranges in this invention, it should be understood that each intermediate value between the upper and lower limits of the range is also specifically disclosed. Every smaller range between any stated value or intermediate value within a stated range, and any other stated value or intermediate value within said range, is also included in this invention. The upper and lower limits of these smaller ranges may be independently included or excluded from the range.

[0050] Unless otherwise stated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. While only preferred methods and materials have been described herein, any methods and materials similar or equivalent to those described herein may be used in the implementation or testing of this invention. All references to this specification are incorporated by way of citation to disclose and describe methods and / or materials associated with those references. In the event of any conflict with any incorporated reference, the content of this specification shall prevail.

[0051] Various modifications and variations can be made to the specific embodiments described in this specification without departing from the scope or spirit of the invention, as will be apparent to those skilled in the art. Other embodiments derived from this specification will also be readily apparent to those skilled in the art. This specification and embodiments are merely exemplary.

[0052] The terms “include,” “including,” “have,” “contain,” etc., used in this article are all open-ended terms, meaning that they include but are not limited to.

[0053] This invention discloses an emulsion containing sunflower essential oil, comprising the following ingredients by weight:

[0054] 5-11 parts oil phase (squalane and decanoic acid triglyceride, mass ratio 1:1)

[0055] 0.8-2.5 parts emulsifier (including at least one of lecithin, polysorbate-20, and glyceryl stearate),

[0056] 1.2-4.8 parts of active ingredients (the mass ratio of golden sunflower essential oil, resveratrol, and purslane extract is 0.5-2:0.2-0.8:0.5-2).

[0057] 0.8-1.8 parts of additives (preservative and thickener in a mass ratio of 1-2:3-5),

[0058] 80-110 parts of aqueous phase (mass ratio of humectant to water is 2:9-11).

[0059] In some optional embodiments, the golden sunflower essential oil is prepared by supercritical carbon dioxide extraction, the specific steps of which are as follows:

[0060] Select dried golden sunflower flowers and then grind them into powder;

[0061] The crushed golden sunflower flowers were subjected to supercritical carbon dioxide extraction at a temperature of 40-60℃, a pressure of 10MPa-30MPa, and a carbon dioxide flow rate of 15-30L / min.

[0062] The golden sunflower essential oil was obtained by decompression separation.

[0063] In some optional embodiments, the extraction process of purslane extract is as follows:

[0064] Purslane was dried and pulverized; water extraction was performed at a material-to-liquid ratio of 1:8 to 1:12 g / mL (i.e., 8 to 12 mL of purified water was added per gram of raw material), followed by filtration to obtain filtrate 1 and filter residue; the filter residue was then subjected to alcohol extraction at a material-to-liquid ratio of 1:6 to 1:10 g / mL, followed by filtration to obtain filtrate 2; filtrate 1 and filtrate 2 were mixed, concentrated under reduced pressure, and then spray-dried to obtain the purslane extract.

[0065] In some alternative embodiments, the preservative is phenoxyethanol or methylisothiazolinone.

[0066] In some alternative embodiments, the thickener is at least one of hydroxyethyl cellulose, polyacrylamide and its derivatives, xanthan gum or magnesium aluminum silicate.

[0067] In some alternative embodiments, the humectant is at least one of glycerin, propylene glycol, and butylene glycol.

[0068] Furthermore, this invention also discloses a method for preparing an emulsion containing sunflower essential oil, comprising the following steps:

[0069] Weigh the raw materials according to the specified weight proportions; add an emulsifier to the aqueous phase and homogenize once to obtain mixture 1; add the active ingredient to the oil phase and homogenize twice to obtain mixture 2; mix mixture 1 and mixture 2, then add an auxiliary agent, and then add a pH adjuster (citric acid or sodium hydroxide) to adjust the pH value to 4.5-6.5, homogenize three times, and finally degas under vacuum conditions (-0.06 to -0.08 MPa) for 10-20 minutes to remove bubbles from the emulsion, thereby obtaining the emulsion containing golden sunflower essential oil.

[0070] The conditions for the first, second, and third homogenization processes are all: homogenize at 6000-8500 rpm for 3-5 minutes.

[0071] Unless otherwise specified, the term "parts" in this invention refers to parts by weight.

[0072] All raw materials used in this invention were purchased from the market.

[0073] The technical solution of the present invention will be further illustrated by the following embodiments.

[0074] Example 1

[0075] A lotion containing sunflower essential oil, comprising the following ingredients by weight:

[0076] 11 parts oil phase (squalane and decanoic acid triglycerides, mass ratio 1:1), 2.5 parts emulsifier (lecithin), 4.8 parts active ingredient (golden sunflower essential oil, resveratrol and purslane extract, mass ratio 2:0.2:2), 0.8 parts adjuvant (phenoxyethanol and hydroxyethyl cellulose, mass ratio 1:2), 110 parts aqueous phase (glycerol and water, mass ratio 2:11);

[0077] The preparation process of the above-mentioned golden sunflower essential oil is as follows:

[0078] Select dried golden sunflower flowers and then grind them into powder;

[0079] The crushed golden sunflower flowers were subjected to supercritical carbon dioxide extraction at a temperature of 60℃, a pressure of 30MPa, and a carbon dioxide flow rate of 30L / min.

[0080] The golden sunflower essential oil was obtained by vacuum separation.

[0081] The extraction process of the above purslane extract is as follows:

[0082] The purslane was dried at 50°C until constant weight was achieved; then it was pulverized to a particle size of 20-60 mesh.

[0083] Water extraction was performed for 1.5 hours at a material-to-liquid ratio of 1:12 g / mL and a temperature of 90℃. The mixture was then filtered to obtain filtrate 1 and filter residue.

[0084] The filter residue was subjected to alcohol extraction at 70℃ for 1.5 h at a material-to-liquid ratio of 1:10 g / mL, and then filtered to obtain filtrate 2.

[0085] The filtrate 1 and filtrate 2 were mixed, concentrated under reduced pressure, and then spray-dried (inlet air temperature 180℃, outlet air temperature 100℃) to obtain purslane extract.

[0086] The preparation method of the above-mentioned emulsion containing golden sunflower essential oil includes the following steps:

[0087] Weigh the raw materials according to the weight proportions;

[0088] An emulsifier was added to the aqueous phase and homogenized once to obtain mixture 1;

[0089] The active ingredient was added to the oil phase and homogenized twice to obtain mixture 2;

[0090] Mix the mixture 1 and the mixture 2, then add the auxiliary agent, and then add the pH adjuster (citric acid or sodium hydroxide) to adjust the pH value to 4.5-6.5. Homogenize three times, and finally degas under vacuum for 20 minutes to remove the bubbles in the emulsion to obtain the emulsion containing golden sunflower essential oil.

[0091] The conditions for the first, second, and third homogenizations were all 8500 rpm for 3 minutes.

[0092] Example 2

[0093] The difference from Example 1 is that the emulsion containing golden sunflower essential oil comprises, by weight, the following ingredients:

[0094] 8 parts oil phase, 2 parts emulsifier, 3 parts active ingredient, 1 part auxiliary agent, 90 parts aqueous phase.

[0095] The other specific raw material types, proportions, and preparation processes are the same as in Example 1.

[0096] Example 3

[0097] The difference from Example 1 is that the emulsion containing golden sunflower essential oil comprises, by weight, the following ingredients:

[0098] 5 parts oil phase, 0.8 parts emulsifier, 1.2 parts active ingredient, 1.8 parts additives, and 80 parts aqueous phase.

[0099] The other specific raw material types, proportions, and preparation processes are the same as in Example 1.

[0100] Example 4

[0101] The difference from Example 1 is that the mass ratio of the active ingredients, including sunflower oil, resveratrol, and purslane extract, is 1:0.6:1.

[0102] The other specific raw material types, proportions, and preparation processes are the same as in Example 1.

[0103] Example 5

[0104] The difference from Example 1 is that the mass ratio of the active ingredients, including sunflower oil, resveratrol, and purslane extract, is 0.5:0.2:0.5.

[0105] The other specific raw material types, proportions, and preparation processes are the same as in Example 1.

[0106] Example 6

[0107] The difference from Example 1 is that the emulsifier is glyceryl stearate, the preservative is methylisothiazolinone, the thickener is xanthan gum, and the humectant is propylene glycol.

[0108] Other specific raw material types, dosages, and preparation processes are the same as in Example 1.

[0109] Example 7

[0110] The difference from Example 1 is that the emulsifier is polysorbate-20, the preservative is methylisothiazolinone, the thickener is polyacrylamide, and the humectant is butanediol.

[0111] Other specific raw material types, dosages, and preparation processes are the same as in Example 1.

[0112] Comparative Example 1

[0113] The difference from Example 1 is that no golden sunflower essential oil is added to the active ingredients.

[0114] Other specific raw material types, dosages, and preparation processes are the same as in Example 1.

[0115] Comparative Example 2

[0116] The difference from Example 1 is that resveratrol is not added to the active ingredients.

[0117] Other specific raw material types, dosages, and preparation processes are the same as in Example 1.

[0118] Comparative Example 3

[0119] The difference from Example 1 is that purslane extract is not added to the active ingredients.

[0120] Other specific raw material types, dosages, and preparation processes are the same as in Example 1.

[0121] Comparative Example 4

[0122] The difference from Example 1 is that the mass ratio of the active ingredients, including sunflower oil, resveratrol, and purslane extract, is 0.2:0.2:1.

[0123] Other specific raw material types, dosages, and preparation processes are the same as in Example 1.

[0124] Effect verification

[0125] To scientifically evaluate the comprehensive performance of the emulsions prepared in Examples 1-7 and Comparative Examples 1-4 of this invention, a systematic test was conducted on five aspects: appearance stability, antioxidant capacity (DPPH scavenging rate), anti-inflammatory capacity (IL-6 inhibition rate), moisturizing capacity (change in skin moisture content), and skin feel score. The following are the standard testing methods or recommended operating procedures for each test item, applicable to laboratory evaluation in cosmetic research and development and quality control.

[0126] I. Appearance Stability Test

[0127] Objective: To evaluate whether emulsions exhibit instability such as stratification, demulsification, and discoloration under normal temperature storage conditions.

[0128] Method and steps:

[0129] Sample preparation: Pour the emulsion into transparent glass bottles, seal them, and number them.

[0130] Observation at room temperature: Let stand at room temperature (25±2℃) for 6 months, and record the changes in the appearance of the emulsion (such as layering, flocculent matter, color change, etc.) every month.

[0131] Judgment criteria: Observe whether there is obvious layering, emulsion breaking, discoloration or abnormal odor, and record the stability status.

[0132] II. Antioxidant Capacity Determination – DPPH Free Radical Scavenging Method

[0133] Objective: To determine the ability of an emulsion to scavenge DPPH free radicals and reflect its antioxidant activity.

[0134] Reagents and instruments:

[0135] DPPH free radical solution (0.1 mmol / L, dissolved in anhydrous ethanol);

[0136] UV-Vis spectrophotometer;

[0137] Constant temperature water bath, pipette, cuvette;

[0138] Experimental steps:

[0139] Take an appropriate amount of emulsion (1 mL), add 9 mL of ethanol, and extract the active ingredients by ultrasonication.

[0140] Take 2 mL of sample solution, add 2 mL of DPPH solution, mix well, and react in the dark for 30 minutes.

[0141] The absorbance (A1) was measured at a wavelength of 517 nm using the DPPH solution without sample solution as a blank control.

[0142] Control group: 2 mL ethanol + 2 mL DPPH solution, absorbance measured (A0).

[0143] Calculate the clearance rate:

[0144]

[0145] Results analysis: The higher the clearance rate, the stronger the antioxidant capacity.

[0146] III. Anti-inflammatory capacity assay – IL-6 inhibition rate (in vitro cell model)

[0147] Objective: To evaluate the anti-inflammatory effect by stimulating RAW264.7 macrophages to release the inflammatory factor IL-6 and measuring the inhibitory effect of emulsion on its secretion.

[0148] Cells and reagents:

[0149] RAW264.7 mouse macrophage cell line;

[0150] LPS (lipopolysaccharide) as an inflammatory inducer;

[0151] ELISA kit (for detecting IL-6 levels);

[0152] CO2 incubator, ELISA reader;

[0153] Experimental steps:

[0154] Cells were seeded in 96-well plates, and after they adhered, LPS (1 μg / mL) was added to induce an inflammatory response.

[0155] Simultaneously, different concentrations of emulsion samples were added to the treatment groups, including a blank group, a model group (LPS only), and a positive drug control group.

[0156] After culturing for 24 hours, collect the supernatant and detect the IL-6 content according to the ELISA instructions.

[0157] Calculate the inhibition rate:

[0158]

[0159] Results analysis: The higher the inhibition rate, the stronger the anti-inflammatory ability.

[0160] IV. Moisturizing Ability Measurement – ​​Changes in Skin Moisture Content ( Instrumental method)

[0161] Objective: To evaluate the moisturizing performance of a lotion by measuring changes in the moisture content of the stratum corneum before and after application. Instrument:

[0162] MDD4-Corneometer CM825 Skin Moisture Tester.

[0163] Experimental steps:

[0164] Subject selection: 11 healthy volunteers, aged 20-30, all of whom were female.

[0165] Test area: Select the inner side of the forearm as the test site, clean it and let it sit for 30 minutes before starting the test.

[0166] Baseline measurement: Initial skin hydration was measured using an MDD4-Corneometer CM825.

[0167] Sample applied: Approximately 2 mg / cm³ of lotion was applied. 2 Apply evenly.

[0168] Time point measurement: Measure skin moisture content again 4 hours after application.

[0169] Calculate the increase in moisture content: compare the difference between each time point and the baseline value.

[0170] Results analysis: The greater the increase in water content, the better the moisturizing performance.

[0171] V. Skin Feel Rating Test (Sensory Evaluation Method)

[0172] Objective: To subjectively evaluate the skin feel of an emulsion, including its spreadability, absorption speed, oiliness, refreshing feel, and texture.

[0173] Method and steps:

[0174] Subject selection: 30 healthy volunteers were selected, with a male-to-female ratio of 1:1.

[0175] Blind testing design: Samples are randomly numbered to avoid labels affecting subjective perception.

[0176] Instructions for use: Each person should try each lotion sample in turn, with an interval of at least 2 hours between each attempt.

[0177] Rating dimensions (using a 10-point scale):

[0178] Spreadability, absorption speed, stickiness, refreshing feeling after use, and overall satisfaction.

[0179] Data statistics: average score.

[0180] Results analysis: A higher average score indicates a better skin feel and a better user experience.

[0181] The specific test results are shown in Table 1.

[0182] Table 1

[0183]

[0184]

[0185] The above are merely preferred embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A lotion containing sunflower essential oil, characterized in that, By weight, it includes the following raw materials: 5-11 parts oil phase, 0.8-2.5 parts emulsifier, 1.2-4.8 parts active ingredient, 0.8-1.8 parts additives, and 80-110 parts aqueous phase; The active ingredients include: golden sunflower essential oil, resveratrol and purslane extract; the mass ratio of golden sunflower essential oil, resveratrol and purslane extract is 1-2:0.2-0.6:1-2; The golden sunflower essential oil was prepared using supercritical carbon dioxide extraction. The specific preparation process is as follows: Select dried golden sunflower flowers and then grind them into powder; The crushed golden sunflower flowers were subjected to supercritical carbon dioxide extraction at a temperature of 40-60℃, a pressure of 10MPa-30MPa, and a carbon dioxide flow rate of 15-30L / min. The golden sunflower essential oil was obtained by vacuum separation. The extraction process of the purslane extract is as follows: The purslane is dried and pulverized. Water extraction was performed at a material-to-liquid ratio of 1:8 to 1:12 g / mL, followed by filtration to obtain filtrate 1 and filter residue. The temperature during the water extraction process was 80 to 90°C. The filter residue was subjected to alcohol extraction at a material-to-liquid ratio of 1:6 to 1:10 g / mL, and then filtered to obtain filtrate 2. The temperature during the alcohol extraction process was 60 to 70°C. The filtrate 1 and filtrate 2 were combined, concentrated under reduced pressure, and then spray-dried to obtain the purslane extract. The aqueous phase consists of deionized water and a humectant. The oil phase consists of squalane and decanoic acid triglyceride in a mass ratio of 1:

1. The emulsifier is at least one of lecithin, polysorbate-20, and glyceryl stearate; The additives are preservatives and thickeners.

2. The emulsion containing golden sunflower essential oil according to claim 1, characterized in that, The water extraction process takes 1.5 to 2 hours; and / or, The extraction time is 1 to 1.5 hours.

3. A method for preparing an emulsion containing sunflower essential oil as described in any one of claims 1-2, characterized in that, Includes the following steps: Weigh the raw materials according to the weight proportions; An emulsifier was added to the aqueous phase and homogenized once to obtain mixture 1; The active ingredient was added to the oil phase and homogenized twice to obtain mixture 2; Mix the mixture 1 and the mixture 2, then add the additives, and adjust the pH value to 4.5~6.5 using a pH adjuster. Homogenize three times, and finally let stand to remove bubbles to obtain the emulsion containing golden sunflower essential oil.

4. The method for preparing an emulsion containing sunflower essential oil according to claim 3, characterized in that, The conditions for the first, second, and third homogenizations are all: homogenize at 6000-8500 rpm for 3-5 minutes.

5. The method for preparing an emulsion containing sunflower essential oil according to claim 3, characterized in that, The conditions for static degassing are as follows: Degas under vacuum conditions for 10-20 minutes.

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