A blackhead-removing composition, a blackhead-removing skin care product, and a preparation method and application thereof

Abstract

The application discloses a blackhead-removing composition, a blackhead-removing skin care product and a preparation method and application thereof, and comprises the following components in parts by mass: illite 1.0-30 parts, plant liposome 0.1-10 parts, sodium stearate 1-10 parts, mowrah seed oil 0.1-1 part and hydroxyl asiaticoside 0.1-1 part. In the composition, the mowrah seed oil small molecule oil dissolves the oil secreted by the skin, the illite plays a role in deep adsorption of the oil in pores, the plant liposome plays a role in increasing the water content of the cuticle, strengthening the skin barrier and improving the oil secretion condition of the skin, thereby reducing the probability of generation of blackheads, the hydroxyl asiaticoside plays a role in bacteriostasis, cleaning and anti-inflammation, and the problem of sebum cleaning and regulation of keratin metabolism is solved from the root, so that the three effects of blackhead removal, cleaning and care are combined, and the obvious defect of single function of the commercially available blackhead-removing products is completely made up.

Description

Technical Field

[0001] This invention belongs to the field of cosmetics and skincare technology, and particularly relates to a blackhead removal composition, a blackhead removal skincare product, its preparation method and application. Background Technology

[0002] There are many blackhead removal products on the market, but their effectiveness varies greatly. Different products target different areas. Traditional peel-off masks can easily damage the skin. Although this method provides immediate results, these masks have very strong adhesion, which not only removes blackheads but also removes some hair, dead skin, and even thins the stratum corneum, leading to sensitive skin. Frequent use can also cause enlarged pores and even sagging skin. Facial cleansing brushes and blackhead removers can also damage the stratum corneum. Acid peels for blackhead removal can also corrode the skin. Microdermabrasion is advertised as using suction to directly extract blackheads, but it doesn't actually extract them directly. Before using microdermabrasion, users need to apply a layer of "blackhead removal liquid," which is actually composed of acids. These acids peel away part of the stratum corneum, revealing the blackheads, which also damages the stratum corneum.

[0003] Clay masks, as an important sub-category of face masks, differ significantly from traditional sheet masks in their formulation and appearance. Clay masks are a type of cream-based cleansing mask, typically possessing an extremely high viscosity and a mud-like appearance. This high viscosity is usually achieved by adding large amounts of polymer thickeners and clay-like substances such as sphagnum molybdenum and bentonite. Simultaneously, the formula includes large amounts of powdery clays such as kaolin and illite, making it prone to drying after application, resulting in a tight feeling, and causing dryness after rinsing.

[0004] While existing mud mask products have moisturizing effects, their cleansing performance has only focused on oil control, failing to meet the needs of people with oily skin who require effective blackhead removal.

[0005] Chinese patent document CN112716860A discloses a stick-shaped mud mask with high moisturizing properties and its preparation method. The stick-shaped mud mask with high moisturizing properties is composed of the following raw materials in weight percentages: kaolin, sodium stearate, sodium hydroxide, p-hydroxyacetophenone, sorbitan stearate, skin conditioning agent, moisturizer, thickener, colorant, filler, and the balance being water; the moisturizer is a mixture of hydroxyethyl urea, propylene glycol, 1,3-propanediol, and glycerin. The stick-shaped mud mask prepared using the above-mentioned raw material components only has a strong moisturizing effect and does not have blackhead removal or repair functions. Therefore, it is particularly important to develop a gentle, non-irritating blackhead removal product that integrates four functions: cleansing, blackhead removal, moisturizing, and repair. Summary of the Invention

[0006] To overcome the technical problems in the prior art, the present invention provides a blackhead removal composition, a blackhead removal skin care product, and its preparation method and application. The resulting composition is gentle and non-irritating, integrating four functions: cleansing, blackhead removal, moisturizing, and repairing. It has a significant blackhead removal and cleansing effect, solving the problem of blackheads on the skin. At the same time, its moisturizing and repairing effects prevent blackhead recurrence, thus achieving the goal of controlling blackheads from the root.

[0007] To solve the above-mentioned technical problems, the present invention proposes the following technical solution:

[0008] The first aspect of the present invention provides a blackhead removal composition, comprising the following components by weight: 13-18 parts of Yili hydromica, 2.5-7.5 parts of plant liposomes, 4.5-7 parts of sodium stearate, 0.2-0.4 parts of moringa seed oil, and 0.1-0.3 parts of asiaticoside.

[0009] This invention abandons the traditional approach of developing acidic systems for blackhead removal products. Instead, it creates a powerful blackhead removal product through a combination of Yili mica, a soap base system, and active ingredients. The soap base system in this invention is sodium stearate, which has a deep cleansing effect and also helps to form a solid mask. The active ingredient is plant liposomes, which are made by dissolving 10 extracts in hydrogenated lecithin, panthenol, glycerin, and butylene glycol, and then encapsulating them in nano-sized lecithin capsules. This skincare cosmetic has the effect of removing blackheads and sebum, and can penetrate deep into the pores to easily dissolve sebum. It was purchased from BIOBEAUTECH CO., LTD., and its English name is Pore Clearing Liposome. This invention utilizes the deep cleansing effect of sodium stearate, the adsorption effect of Yili mica, and the moisturizing and repairing effect of plant liposomes to achieve the product's powerful blackhead removal effect while reducing the irritation of blackhead removal products.

[0010] Meanwhile, the moringa seed oil added to this invention, with its small molecule lipids, can penetrate deep into pores to dissolve sebum secreted by the skin. When applied to the skin, it releases its moisturizing and skin-softening properties, helping the skin retain moisture and preventing inflammation, dryness, and peeling. This oil is also a purifying substance, helping to protect the skin from environmental factors, allergens, and pathogens. Hydroxyacine, a potent and highly pure active ingredient, is one of the main components found in Centella asiatica. It can reduce skin reactivity and has soothing, antipruritic, and anti-erythema effects. In this invention, it has antibacterial, cleansing, and anti-inflammatory effects, addressing the root causes of sebum cleansing and keratin metabolism regulation.

[0011] As an optional implementation, in the blackhead removal composition provided by the present invention, the average particle size of the Yili hydromica is ≤5.0μm and the whiteness is ≥78.

[0012] As an optional implementation, in the blackhead removal composition provided by the present invention, the moringa seed oil contains 65-85% oleic acid and 3-10% icosinic acid.

[0013] The high oleic acid content in the moringa seed oil of this invention indicates its excellent oxidation properties, ensuring that skincare formulas will not become rancid over a long period. It also contributes a silky texture, long-lasting moisturizing effect, and leaves the skin smooth and soft.

[0014] As an optional implementation, in the blackhead removal composition provided by the present invention, the plant liposomes are liposome-encapsulated extracts of witch hazel, sheep milk root, burdock root, white willow bark, chrysanthemum, magnolia, schisandra fruit, Japanese raisin tree fruit, and peppermint.

[0015] In this invention, the plant liposomes are composed of the following ingredients: water, Hamam Elvisvirginiana extract, Codonopsis lancostata root extract, Arctium lappa root extract, Salix alba bark extract, Chrysanthemum sinenese flower extract, glycerin, butylene glycol, Magnolia likobus twig / flower / leaf extract, Schisandra chinensis fruit extract, Hovenia dulcis fruit extract, hydrogenated lecithin, polyglycerol-10 oleate, 1,2-hexanediol, Mentholatum piperitonea extract, phytosterols, Mentholatum piperitonea oil, and panthenol.

[0016] Based on the same technical concept, a second aspect of the present invention provides a blackhead removal skin care product, comprising the above-mentioned blackhead removal composition and an acceptable matrix in the skin care product.

[0017] As an optional implementation, in the blackhead removal skin care product provided by the present invention, the dosage form of the blackhead removal skin care product is a water-based mud mask.

[0018] As an optional implementation, in the blackhead removal skin care product provided by the present invention, the base is a thickener, and the thickener is hydroquinone.

[0019] Based on the same technical concept, a third aspect of the present invention provides a method for preparing a blackhead removal composition, comprising the following steps:

[0020] S1. Weigh each material according to the mass ratio, add Yili hydromica and Moringa seed oil to deionized water, and homogenize until the powder is completely dispersed to obtain solution A. The homogenization speed is 2000-3000 rpm and the homogenization time is 5-10 min.

[0021] S2. Add sodium stearate to solution A, heat to 80-85℃, and stir until the solid is completely dissolved to obtain solution B.

[0022] S3. Add hydroxyascorbic acid and plant liposomes to solution B, keep warm and stir evenly, then cool to 60-70℃ and discharge, keep warm and fill to obtain the blackhead removal composition.

[0023] As an optional implementation, in the preparation method provided by the present invention, in step S1, the homogenization speed is 2000-3000 rpm and the homogenization time is 5-10 min.

[0024] As an optional implementation, in the preparation method provided by the present invention, in step S2, the heating temperature is 80-85°C and the stirring frequency is 10-40Hz.

[0025] Heating at 80-85℃ ensures complete dissolution of sodium stearate. Excessive temperature will cause significant loss of other components due to volatilization, while insufficient temperature will result in incomplete dissolution of sodium stearate.

[0026] As an optional implementation, in the preparation method provided by the present invention, in step S3, the material is discharged after being cooled to 60-70°C, and then filled after being kept warm to obtain the blackhead removal composition.

[0027] Based on the same technical concept, the fourth aspect of the present invention provides the application of the above-mentioned blackhead removal composition in cosmetics.

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0029] (1) The blackhead removal composition prepared in this invention includes illite mica, plant liposomes, and sodium stearate. Firstly, it utilizes the deep cleansing effect of sodium stearate, the adsorption effect of illite mica, and the moisturizing and repairing effect of plant liposomes to achieve the product's powerful blackhead removal effect. Simultaneously, it reduces the irritation of blackhead removal products, cleanses skin metabolic "waste," and solves blackhead skin problems. Furthermore, its moisturizing and repairing effects prevent blackhead recurrence, achieving the goal of controlling blackheads from the root. It effectively combines blackhead removal, cleansing, and skincare in one, completely overcoming the obvious shortcomings of commercially available blackhead removal products with limited functionality.

[0030] (2) The blackhead removal composition of the present invention also includes Moringa seed oil and asiaticoside. Moringa seed oil, with its small molecule oils, penetrates deep into the pores to dissolve the sebum secreted by the skin. Yili hydromica plays a role in deeply absorbing the sebum in the pores. Furthermore, plant liposomes increase the moisture content of the stratum corneum, strengthen the skin barrier, and improve the skin's oil production, thereby reducing the chance of blackhead formation. Finally, asiaticoside plays a role in antibacterial, cleansing, and anti-inflammatory effects, thus solving the problem of sebum cleansing and regulating keratin metabolism from the root. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 The image shows a comparison of the skin-sensing evaluation forced radar between Example 2 and Comparative Example 1, where 349 represents Example 2 and 405 represents Comparative Example 1.

[0033] Figure 2 The image shows a comparison of the skin-sensing assessment forced radar between Example 1 and Example 2, where 666 represents Example 1 and 555 represents Example 2. Detailed Implementation

[0034] To facilitate understanding of the present invention, the present invention will be described more fully and in detail below with reference to the accompanying drawings and preferred embodiments, but the scope of protection of the present invention is not limited to the following specific embodiments.

[0035] Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by those skilled in the art. The technical terms used herein are for the purpose of describing particular embodiments only and are not intended to limit the scope of the invention.

[0036] Unless otherwise specified, all raw materials, reagents, instruments and equipment used in this invention can be purchased from the market or prepared by existing methods.

[0037] Example 1:

[0038] (1) Weigh the following materials: Phase A: 15.6g of Yili hydromica and 34.85g of deionized water; Phase B: 0.3g of Moringa seed oil; Phase C: 5.0g of sodium stearate; Phase D: 5.0g of plant liposomes and 0.2g of hydroxyascorbic acid.

[0039] (2) Add phase A raw material to the main pot and disperse it evenly. Then turn on the homogenizer and set the speed to 2000-3000 rpm. Homogenize for about 10 minutes until the powder is completely dispersed (no particles are visible when coated).

[0040] (3) Add phase B raw material to the main pot, start stirring at 10-40 Hz, start heating at 80-85 ℃ until the solid is completely dissolved.

[0041] (4) Add the C phase raw material to the main pot, keep it warm and stir until the raw material is dissolved and dispersed evenly, start cooling down, cool down to 60-70℃, discharge, keep warm, and bottle.

[0042] Example 2

[0043] (1) Weigh the following materials: Phase A: 13.0g of Yili hydromica and 39.67g of deionized water; Phase B: 0.3g of Moringa seed oil; Phase C: 4.5g of sodium stearate; Phase D: 0.2g of hydroxyascorbic acid glycoside and 5.0g of plant liposomes.

[0044] (2) Add phase A raw material to the main pot and disperse it evenly. Then turn on the homogenizer and set the speed to 2000-3000 rpm. Homogenize for about 10 minutes until the powder is completely dispersed (no particles are visible when coated).

[0045] (3) Add phase B raw material to the main pot, turn on homogenization, speed 2000-3000 rpm, homogenize for about 2 minutes.

[0046] (4) Add the C phase raw material to the main pot, start stirring at 10-40 Hz, and start heating at 80-85 ℃ until the solid is completely dissolved.

[0047] (5) Add the D phase raw material to the main pot, keep it warm and stir until the raw material is dissolved and dispersed evenly, start cooling down, cool down to 60-70℃, discharge, keep warm, and bottle.

[0048] Example 3

[0049] (1) Weigh the following materials: Phase A: 13.0g of Yili hydromica and 40.2g of deionized water; Phase B: 0.2g of Moringa seed oil; Phase C: 4.75g of sodium stearate; Phase D: 0.1g of hydroxyascorbic acid glycoside and 2.5g of plant liposomes.

[0050] (2) Add phase A raw material to the main pot and disperse it evenly. Then turn on the homogenizer and set the speed to 2000-3000 rpm. Homogenize for about 10 minutes until the powder is completely dispersed (no particles are visible when coated).

[0051] (3) Add phase B raw material to the main pot, turn on homogenization, speed 2000-3000 rpm, homogenize for about 2 minutes.

[0052] (4) Add the C phase raw material to the main pot, start stirring at 10-40 Hz, and start heating at 80-85 ℃ until the solid is completely dissolved.

[0053] (5) Add the D phase raw material to the main pot, keep it warm and stir until the raw material is dissolved and dispersed evenly, start cooling down, cool down to 60-70℃, discharge, keep warm, and bottle.

[0054] Example 4

[0055] (1) Weigh the following materials: Phase A: 18.0g of Yili hydromica and 30.1g of deionized water; Phase B: 0.4g of Moringa seed oil; Phase C: 4.85g of sodium stearate; Phase D: 0.3g of asiaticoside and 7.5g of plant liposomes.

[0056] (2) Add phase A raw material to the main pot and disperse it evenly. Then turn on the homogenizer and set the speed to 2000-3000 rpm. Homogenize for about 10 minutes until the powder is completely dispersed (no particles are visible when coated).

[0057] (3) Add phase B raw material to the main pot, turn on homogenization, speed 2000-3000 rpm, homogenize for about 2 minutes.

[0058] (4) Add the C phase raw material to the main pot, start stirring at 10-40 Hz, and start heating at 80-85 ℃ until the solid is completely dissolved.

[0059] (5) Add the D phase raw material to the main pot, keep it warm and stir until the raw material is dissolved and dispersed evenly, start cooling down, cool down to 60-70℃, discharge, keep warm, and bottle.

[0060] Comparative Example 1

[0061] This is a commercially available product. Its main ingredients are water, kaolin, glycerin, propylene glycol, stearic acid, dipropylene glycol, butylene glycol, CI 77891, isocetyl ether-20, sodium hydroxide, lactic acid, poloxamer 407, Dendrobium officinale stem extract, stearyl ether-2, cellulose, CI 77288, sodium magnesium silicate, bergamot fruit oil, p-hydroxyacetophenone, disodium EDTA, nicotinamide, tocopheryl acetate, Moringa oleifera seed oil, CI 77947, 1,2-pentanediol, dipotassium glycyrrhizate, 4-tert-butylcyclohexanol, Butyrospermum parkii fruit oil extract, magnolol, magnolol, and camellia tea. Sinensis leaf extract, Argania shinosa kernel oil, Centella asiatica extract, spent malt meal wax, tocopherol (vitamin E).

[0062] Comparative Example 2

[0063] (1) Weigh the following materials: Phase A: 53.45g of deionized water; Phase B: 0.3g of moringa seed oil; Phase C: 7.0g of sodium stearate; Phase D: 0.2g of hydroxyascorbic acid glycoside.

[0064] (2) Add phase A raw material to the main pot and disperse it evenly. Then turn on the homogenizer and set the speed to 2000-3000 rpm. Homogenize for about 10 minutes until the powder is completely dispersed (no particles are visible when coated).

[0065] (3) Add phase B raw material to the main pot, turn on homogenization, speed 2000-3000 rpm, homogenize for about 2 minutes.

[0066] (4) Add the C phase raw material to the main pot, start stirring at 10-40 Hz, and start heating at 80-85 ℃ until the solid is completely dissolved.

[0067] (5) Add the D phase raw material to the main pot, keep it warm and stir until the raw material is dissolved and dispersed evenly, start cooling down, cool down to 60-70℃, discharge, keep warm, and bottle.

[0068] Comparative Example 3

[0069] (1) Weigh the following materials: Phase A: 49.6g of deionized water; Phase B: 0.3g of moringa seed oil; Phase C: 5.85g of sodium stearate; Phase C: 0.2g of hydroxyascorbic acid glycoside and 5.0g of plant liposomes.

[0070] (2) Add phase A raw material to the main pot and disperse it evenly. Then turn on the homogenizer and set the speed to 2000-3000 rpm. Homogenize for about 10 minutes until the powder is completely dispersed (no particles are visible when coated).

[0071] (3) Add phase B raw material to the main pot, turn on homogenization, speed 2000-3000 rpm, homogenize for about 2 minutes.

[0072] (4) Add the C phase raw material to the main pot, start stirring at 10-40 Hz, and start heating at 80-85 ℃ until the solid is completely dissolved.

[0073] (5) Add the D phase raw material to the main pot, keep it warm and stir until the raw material is dissolved and dispersed evenly, start cooling down, cool down to 60-70℃, discharge, keep warm, and bottle.

[0074] Comparative Example 4

[0075] (1) Weigh the following materials: Phase A: 15.6g of Yili hydromica and 39.35g of deionized water; Phase B: 0.3g of Moringa seed oil; Phase C: 5.5g of sodium stearate; Phase C: 0.2g of hydroxyascorbic acid.

[0076] (2) Add phase A raw material to the main pot and disperse it evenly. Then turn on the homogenizer and set the speed to 2000-3000 rpm. Homogenize for about 10 minutes until the powder is completely dispersed (no particles are visible when coated).

[0077] (3) Add phase B raw material to the main pot, turn on homogenization, speed 2000-3000 rpm, homogenize for about 2 minutes.

[0078] (4) Add the C phase raw material to the main pot, start stirring at 10-40 Hz, and start heating at 80-85 ℃ until the solid is completely dissolved.

[0079] (5) Add the D phase raw material to the main pot, keep it warm and stir until the raw material is dissolved and dispersed evenly, start cooling down, cool down to 60-70℃, discharge, keep warm, and bottle.

[0080] II. Performance Testing

[0081] (I) Skin feel evaluation.

[0082] Test Principle: Sensory evaluation methods are used to compare differences among different products in terms of texture, odor, spreadability, amount applied, uniformity of application, drying speed, non-drying properties, ease of washing, moisturizing feel, oil removal, cleanliness, smoothness, and gentleness. SPSS software is used for statistical analysis. A significance test is performed if (*p<0.05), indicating a significant difference in that dimension. *p* represents a 5% significance level, meaning there is at least a 95% probability of the event occurring.

[0083] Test method:

[0084] Personnel requirements: Select individuals aged 18-60, gender not limited, minimum of 30 people.

[0085] Test site and method: Face. After cleansing, completely wipe the face dry, avoiding the eye and lip areas. Apply the product evenly to the face, wait 10 minutes, and then rinse with water. Score the product based on its texture, smell, application, amount, evenness, drying speed, non-tightening effect, easy to wash off, moisturizing effect, oil control, cleanliness, smoothness, and gentleness.

[0086] Test cycle: 1 day (immediately after sample use).

[0087] The test results are shown in Table 1 below.

[0088] Table 1: Results of Forced Comparison and Statistical Analysis

[0089]

[0090]

[0091] The detection results of Example 2 and Comparative Example 1 are as follows: Figure 1 As shown, by Figure 1 It can be seen that the product prepared in Example 2 is superior to that in Comparative Example 1 in terms of texture, amount of material, uniformity of material, moisturizing feel, and cleanliness. The product prepared in Example 2 also performs better in skin feel evaluation. See Table 1 for specific results.

[0092] Table 2: Results of Forced Comparison and Statistical Analysis

[0093] texture 6.51 5.83 yes odor 6.14 5.91 no smear 6.89 6.03 yes Feeding volume 6.31 6.29 no Material uniformity 6.40 5.86 no Drying speed 5.69 5.17 no Not tight 6.63 5.97 yes Easy to clean 6.94 6.74 no Moisturizing 6.49 6.00 no Degreasing 6.37 6.14 no clean 6.49 6.23 no smooth 6.60 6.40 no mild 7.20 7.09 no Overall Preference 6.51 6.13 no

[0094] The detection results of Example 1 and Example 2 are as follows: Figure 2 As shown in the radar comparison chart, Example 1 is superior to Example 2 in terms of product texture, odor, application, amount applied, cleansing effectiveness, post-wash tightness, gentleness, and overall likability. In other words, Example 1 performed best in the skin feel evaluation; see Table 2 for specific results.

[0095] (II) Timeliness Assessment

[0096] 1. Instant Blackhead Removal Effect Evaluation

[0097] Testing Principle: This invention uses the VISIA skin analyzer to analyze the effectiveness of blackhead removal. The VISIA skin analyzer utilizes advanced optical imaging, RBX, and software technology to instantly measure and analyze epidermal spots, pores, wrinkles, and skin texture, as well as subcutaneous blood vessels and pigmented lesions caused by ultraviolet radiation, such as porphyrins (oil), brown spots, and erythema, revealing potential skin problems caused by these, such as melasma, acne, and blackheads. This allows dermatologists to design the most suitable treatment plan for each skin problem. The VISIA skin analyzer can not only detect problems already exposed on the skin surface but also observe deeper skin problems through different light sources.

[0098] Test method:

[0099] Test environment: The test environment temperature is 21±1℃, the humidity is 50±5%, and real-time dynamic detection is performed;

[0100] Test volunteers should be aged 18-60 (excluding pregnant or breastfeeding women); have no serious systemic diseases, immunodeficiency, or autoimmune diseases; have no history of severe allergies to skin care cosmetics; have not used hormone drugs or immunosuppressants in the past month; have not participated in other clinical trials; have used the test drug as required and have complete documentation; and all volunteers should complete an informed consent form before the test.

[0101] Test steps:

[0102] ① On the first visit, explain the trial to the participants and obtain their informed consent.

[0103] ② The subjects participating in the trial were screened according to the trial requirements. At least 20 subjects were initially selected for enrollment, and the final enrollment was guaranteed to be 20 subjects.

[0104] ③ Qualified test subjects should not use skincare products on the test area on the morning of the test. After signing in upon entering the laboratory, all subjects should wash their face with water and gently pat dry with a dry towel.

[0105] ④ Use the VISIA-CR instrument to capture images of the face, and have the doctor count the blackheads in the test area. The result of this test will be used as the initial value.

[0106] ⑤ Take an appropriate amount of product and apply it thickly to the nose and surrounding areas where blackheads are most noticeable. Leave it on for about 10 minutes, then gently wipe off the mud mask with a towel and rinse with warm water.

[0107] ⑥ Use the VISIA-CR instrument to capture images of the face, and have the doctor count the blackheads in the test area. The result of this test will be used as the test value after use.

[0108] ⑦ Test ends.

[0109] Test Results and Analysis:

[0110] ① The application software performs descriptive statistics on each measurement value, including quantity, mean, standard deviation, minimum value, maximum value, etc.

[0111] ② Use the Shapiro-Wilk Test to test the significance of the data's normality. If Sig. (two-tailed) > 0.05, then the data is normally distributed.

[0112] ③ If the test data is normally distributed, the t-test method is used for statistical analysis; if the test data is not normally distributed, the rank-sum test method is used for statistical analysis. If there is a significant difference (p<0.05) between the product area and the area before and after, the product is considered to have corresponding efficacy in the test area.

[0113] The blackhead removal efficacy data of Examples 1-4 and Comparative Examples 1-4 are shown in Table 3 below.

[0114] Table 3: Results of Blackhead Removal Efficacy

[0115] Example 1 13.19 3.43 -74.00％ 0.000 yes Example 2 11.67 3.48 -70.18％ 0.000 yes Example 3 13.05 5.12 -60.77％ 0.000 yes Example 4 11.35 4.15 -63.44％ 0.000 yes Comparative Example 1 11.95 5.55 -53.56％ 0.000 no Comparative Example 2 12.25 5.60 -54.29％ 0.000 no Comparative Example 3 13.00 5.48 -57.85％ 0.000 no Comparative Example 4 13.55 6.05 -55.35％ 0.000 no

[0116] As shown in Table 3, by counting blackheads on the nose, the results showed that the number of blackheads in the application area of ​​the samples in Examples 1-4 improved after use compared with before use, and the values ​​were significantly different. However, the improvement effect of blackheads before and after use of the samples in Comparative Examples 1-4 was not obvious, and the values ​​were not significantly different.

[0117] 2. Moisturizing effect evaluation

[0118] Testing Principle: This invention uses the Comemeter CM825 (Courage & Khazaka, Germany) skin stratum corneum moisture meter to analyze the moisturizing effect. Skin moisture content is determined by both internal and external factors. The skin stratum corneum's ability to retain moisture varies considerably, ranging from 10% to 60%, primarily due to the skin's respiration process through sweating and the composition of the water mixture within the skin. External factors, including environmental temperature, humidity, medications, and cosmetics, can all determine and alter the skin's moisture content. Skin moisture content affects the formation of a water-oil mixture film on the skin surface, and this protective film is crucial for preventing skin aging. Therefore, quantitatively testing skin moisture content and its changes over a certain period of skincare is very useful. The testing principle is based on the significant variation in the dielectric constant of water and other substances. Depending on the water content, a suitably shaped measuring capacitor will change with the skin's capacitance, which is within the measurement range, thus allowing for the measurement of skin moisture content.

[0119] Test method:

[0120] The testing environment and test volunteers are the same as above.

[0121] The testing steps are as follows:

[0122] ① On the first visit, explain the trial to the participants and obtain their informed consent.

[0123] ② The subjects participating in the trial were screened according to the trial requirements. First, 24 or more people with dry skin were screened to be enrolled, and finally, 24 or more people were ensured to be enrolled.

[0124] ③ Qualified subjects should not use skin-spreading products on the morning of the test. After signing in upon entering the laboratory, wipe the surface of the arm with a soft cotton towel. Experimental and control groups are set up. The sample application area and blank control area are randomly distributed on the inner side of the left and right arms, with each test area measuring 3cm x 3cm and spaced at least 1cm apart. Rest for 20 minutes in the testing environment, keeping the forearm exposed throughout the process.

[0125] ④ Use the CM825 instrument to test the inside of the arm, and use the test result as the initial value.

[0126] ⑤ After the test is completed, the subjects are given instructions on how to use the sample. After listening to the instructions, the sample is distributed to the subjects.

[0127] ⑥ Subjects used the sample according to the instructions of the experiment. Subjects were asked to have their arms tested with the CM825 instrument 1 hour and 2 hours after use.

[0128] ⑦ Test ends.

[0129] Test Results and Analysis:

[0130] ① The application software performs descriptive statistics on each measurement value, including quantity, mean, standard deviation, minimum value, maximum value, etc.

[0131] ② Use the Shapiro-Wilk Test to test the significance of the data's normality. If Sig. (two-tailed) > 0.05, then the data is normally distributed.

[0132] ③ If the test data is normally distributed, the t-test method is used for statistical analysis; if the test data is not normally distributed, the rank-sum test method is used for statistical analysis.

[0133] The moisturizing efficacy data of Examples 1-4 and Comparative Examples 1-4 are shown in Table 4 below.

[0134] Table 4: Results of Moisturizing Efficacy

[0135]

[0136]

[0137] Table 2 shows that, based on the statistical analysis of the improvement rate of skin stratum corneum moisture, the difference in skin stratum corneum moisture content in the test areas after 2 hours and 8 hours of use in the samples of Examples 1-4 was significantly better than that in the blank control group. This demonstrates that the examples effectively remove blackheads without causing significant damage to the skin barrier, while also possessing excellent moisturizing effects, and proves that Example 1 is the optimal solution.

[0138] 3. Evaluation of Repair Results

[0139] Testing Principle: This invention uses the Cornemeter CM825 (Courage & Khazaka, Germany) skin stratum corneum moisture analyzer and the Teaxmeter TM300 (Courage & Khazaka, Germany) transepidermal water loss meter to analyze its repair effect. Healthy skin, due to its normal skin barrier function, sufficient sebum protection, tightly arranged keratinocytes, and abundant moisturizing and water-locking factors, can retain skin moisture, and water loss is usually relatively small, allowing the skin to maintain moisture balance. Damaged barriers, however, lack sebum, have loose keratinocytes, and lack water-locking factors, making moisture easily lost, and the skin correspondingly becomes dry and fragile. Therefore, quantitatively testing skin moisture content and transepidermal water loss can help determine the skin barrier's repair capacity.

[0140] The principle of testing the moisture content of the stratum corneum is based on the fact that the dielectric constant of water and other substances varies considerably. Depending on the water content, a measuring capacitor of appropriate shape will change with the change in the capacitance of the skin. Since the capacitance of the skin is within the measurement range, the moisture content of the skin can be measured.

[0141] The principle of transepidermal water loss testing: Based on Fick's law of diffusion, under specified temperature and humidity conditions, the water vapor partial pressure gradient at different points near the epidermis (within 1 cm) per unit time and unit cross-sectional area is measured to obtain the transepidermal water loss (TEWL) value. Under the test conditions, a higher TEWL value indicates a greater transepidermal water loss per unit time and unit cross-sectional area; a lower TEWL value indicates a less transepidermal water loss per unit time and unit cross-sectional area.

[0142] Test method:

[0143] The testing environment and test volunteers are the same as above.

[0144] Test steps:

[0145] ① On the first visit, explain the trial to the participants and obtain their informed consent.

[0146] ② The subjects participating in the trial were screened according to the trial requirements. At least 30 subjects were initially selected for enrollment, and at the end, at least 30 subjects were selected to complete the trial.

[0147] ③ Qualified subjects should not use skincare products on the test sites on the morning of the test. After entering the laboratory and signing in, all subjects should wipe the inside of their forearms with dry tissues, mark the test areas as 2cm*2cm, with at least 1cm between each area, and rest in the test environment for 15-20 minutes. Blank control and sample application areas should be set up, with the areas randomly distributed.

[0148] ④ Test the test area using instruments such as CM825 and TM300. Measure each area three times in parallel and take the average of the three measurements. Use this test result as the initial value.

[0149] ⑤ The test area was peeled off with tape 20 times. Immediately after peeling, data was collected from the test area using instruments such as CM825 and TM300.

[0150] ⑥ After the test, apply the sample to the subject's application area according to the sample usage method. 4 hours and 6 hours after application, use instruments such as CM825 and TM300 to collect data from the arm.

[0151] ⑦ Test ends.

[0152] Test Results and Analysis

[0153] The repair efficacy data of Examples 1-4 and Comparative Examples 1-4 are shown in Table 5 below.

[0154] Table 5: Results of Repair Efficacy

[0155]

[0156]

[0157] Thirty-two volunteers underwent a skin barrier injury treatment using adhesive tape. After a single application of the samples from Examples 1-4, the transepidermal water loss in the test areas was improved at 4 hours and 6 hours after application compared to the immediate values ​​immediately after the injury (P<0.05). The results are shown in Table 3. At 6 hours after application, compared to the blank control area and Comparative Examples 1-4, the change rate of transepidermal water loss in the sample application area was greater than that in the blank control area, and the difference was statistically significant (P<0.05). This indicates that the sample has an effect on improving the skin barrier.

[0158] 4. Oil control effect evaluation

[0159] Testing Principle: This invention uses the Sebumeter SM815 (Courage & Khazaka, Germany) skin oil analyzer to analyze its oil control effect. The oil content test employs the internationally recognized SEBUMETER method, which is based on the principle of photometry. A special 0.1mm thick matte adhesive tape absorbs the oil from human skin, becoming a semi-transparent tape. Its light transmittance changes accordingly; the more oil absorbed, the greater the light transmittance, thus allowing measurement of the skin's oil content. The biggest advantage is the small size of the test probe, making it easy to use and applicable to any part of the skin. This is an indirect method for measuring sebaceous gland secretions, and the results can be used to differentiate different skin types, making it possible to accurately understand oil changes caused by internal and external factors.

[0160] Test method:

[0161] The testing environment and test volunteers are the same as above.

[0162] Test steps:

[0163] ① On the first visit, explain the trial to the participants and obtain their informed consent.

[0164] ② The subjects participating in the trial were screened according to the trial requirements. First, 30 people with oily skin were screened to be enrolled, and finally, at least 30 people were enrolled.

[0165] ③ Qualified test subjects must not use skincare products on the morning of the test. After checking in upon entering the laboratory, use a standardized facial cleanser to cleanse your face.

[0166] ④ Use the Sebumeter instrument to test the face, and use the test results as the initial values.

[0167] ⑤ After the test is completed, the subjects are given instructions on how to use the sample. After listening to the instructions, the sample is distributed to the subjects.

[0168] ⑥ The subjects were administered (2.0±0.1 mg / cm²) 2 The test instructions are to use the product and test the face with a Sebumeter instrument 2 hours and 6 hours after use.

[0169] ⑦ Test ends.

[0170] Test Results and Analysis:

[0171] The oil control efficacy data of Examples 1-3 and Comparative Examples 1-4 are shown in Table 6 below.

[0172] Table 6: Results of Oil Control Efficacy

[0173]

[0174] After 30 subjects used the products of Examples 1-4 once under normal conditions, the skin oil content was tested. The results showed that, compared with the blank group and the comparative examples 1-4, the increase in oil content in the sample application group was significantly lower than that in the blank group at 2h and 6h after use (P<0.05). The sample has the effect of oil control under the test conditions.

[0175] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. However, it should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.

Claims

1. A blackhead removal composition, characterized in that, The composition comprises, by weight parts, the following components: 13-18 parts of Yili hydromica, 2.5-7.5 parts of plant liposomes, 4.5-7 parts of sodium stearate, 0.2-0.4 parts of Moringa seed oil, and 0.1-0.3 parts of asiaticoside; wherein the plant liposomes are liposome-encapsulated extracts of witch hazel, sheep milk root, burdock root, white willow bark, hairy chrysanthemum, wrinkled magnolia extract, schisandra fruit extract, northern jujube fruit extract, and peppermint extract; the blackhead removal composition is formulated as a mud mask.

2. The blackhead removal composition according to claim 1, characterized in that, The average particle size of the illite mica is ≤5.0 µm, and the whiteness is ≥78.

3. The blackhead removal composition according to claim 1, characterized in that, The moringa seed oil contains 65-85% oleic acid and 3-10% icosin, and the purity of the hydroxyascorbic acid is ≥95%.

4. A skincare product for removing blackheads, characterized in that, Includes the blackhead removal composition and skin care product acceptable base as described in any one of claims 1 to 3.

5. The blackhead-removing skincare product according to claim 4, characterized in that, The blackhead removal skincare product is in the form of a water-based mud mask.

6. The blackhead-removing skincare product according to claim 4, characterized in that, The matrix is ​​a thickener, and the thickener is hydropyrite.

7. The method for preparing the blackhead removal composition according to any one of claims 1-3, characterized in that, Includes the following steps: S1. Weigh each material according to the mass ratio, add Yili hydromica and Moringa seed oil to deionized water, and homogenize until the powder is completely dispersed to obtain solution A. The homogenization speed is 2000~3000 rpm and the homogenization time is 5~10 min. S2. Add sodium stearate to solution A, heat to 80~85℃, and stir until the solid is completely dissolved to obtain solution B; S3. Add hydroxyascorbic acid and plant liposomes to solution B, keep warm and stir evenly, then cool to 60~70℃ and discharge, keep warm and fill to obtain the blackhead removal composition.

8. The use of the blackhead removal composition according to any one of claims 1-3 or the blackhead removal skin care product according to any one of claims 4-6 in the preparation of cosmetics.

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