Oil control composition containing norway spruce leaves and applications

Abstract

The application discloses a Norway spruce leaf-containing oil control and repair composition and application, and relates to the technical field of cosmetics. The application provides a Norway spruce leaf-containing oil control and repair composition, which comprises the following components in parts by weight: Norway spruce leaf extract 0.1-2 parts, Spermacoce latifolia extract 0.1-0.5 parts, yeast / kelp sugar fermentation product 1-5 parts, Usnea barbata extract 0.1-0.5 parts and Hamamelis virginiana extract 0.1-2 parts. The Norway spruce leaf extract, the Spermacoce latifolia extract, the yeast / kelp sugar fermentation product, the Usnea barbata extract and the Hamamelis virginiana extract are synergistic, the components synergize, and the components jointly play effects in aspects of oil control, barrier repair, anti-inflammatory and antibacterial effects, microenvironment stability maintenance and sebum gland abnormal activation reduction, so that instant oil control can be realized, compensatory secretion can be relieved through long-acting stability maintenance, and the application is suitable for skin which needs long-term oil control and is sensitive.

Description

Technical Field

[0001] This invention relates to the field of cosmetic technology, and in particular to an oil-controlling and repairing composition containing Norway spruce leaves and its application. Background Technology

[0002] Existing technical analysis shows that there are significant physiological differences between male and female skin, mainly in the following aspects: (1) Differences in physiological structure: The thickness of the stratum corneum of male skin is about 20-25% greater than that of female skin, the epidermal tissue structure is more compact, the collagen fiber density of the dermis is high, and the volume of sebaceous glands is 3-4 times larger than that of female skin. This structural feature leads to the surface roughness index of male skin being generally higher than that of female skin. (2) Differences in metabolic regulation mechanism: The distribution density of androgen receptors in sebaceous gland cells in males is 2-3 times higher than that in females. Most sebum secretion in men is stimulated by testosterone. Testosterone is converted into dihydrotestosterone (DHT) under the action of 5α reductase. The activity of DHT is 5-10 times that of testosterone. DHT can bind to androgen receptors in cells and stimulate sebaceous gland secretion. (3) Differences in barrier function: Shaving behavior leads to the destruction of the integrity of the stratum corneum, and the transepidermal water loss rate (TEWL) is increased compared with the unshaved area. At the same time, the amount of sweat gland secretion is significantly higher in women than in men. The lactic acid / urea complex in sweat lowers the pH value of the skin surface, accelerates the emulsification and diffusion of sebum, making sebum easier to distribute on the face, making the skin appear oilier and more prone to bacterial growth.

[0003] The existing oil-controlling and repairing products have the following technical defects: (1) Cleansing products rely too much on surfactants (such as sodium lauryl sulfate, SLS), and their degreasing power index is too high, which leads to an increase in the loss rate of ceramides in the natural sebum film and causes a compensatory increase in sebum secretion; (2) Adsorbent ingredients (such as diatomaceous earth and kaolin) can temporarily reduce the oil content on the skin surface, but they will form a physical sealing layer to promote the proliferation of Propionibacterium acnes; (3) The existing formula system fails to specifically regulate the activity of 5α reductase and has no substantial intervention effect on the DHT-mediated sebum secretion signaling pathway; (4) Over-cleansing leads to damage to the epidermal lipid bilayer structure, an increase in transepidermal water loss, and causes a "oily on the outside and dry on the inside" skin condition.

[0004] Given that existing products have insufficient oil control duration, lack barrier repair function, and may induce secondary skin problems, there is an urgent need in the field for an oil control composition that can alleviate compensatory sebum secretion, increase the oil control duration of the product, and have barrier repair function. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to overcome the shortcomings of the prior art and provide an oil-controlling and repairing composition containing Norway spruce leaves that can alleviate the problem of compensatory increased sebum secretion, increase the oil-controlling effect of the product, and have barrier repair function, as well as its application.

[0006] To achieve the above objectives, in a first aspect of this application, this application provides an oil-controlling and repairing composition containing Norway spruce leaves, comprising the following components in parts by weight: 0.1-2 parts of Norway spruce leaf extract, 0.1-0.5 parts of Hedyotis diffusa extract, 1-5 parts of yeast / lamb fermentation product, 0.1-0.5 parts of Usnea indica extract, and 0.1-2 parts of witch hazel extract.

[0007] Norway spruce leaf extract is rich in polysaccharides, flavonoids, and polyphenols, which can inhibit sebaceous gland cells from secreting lipids. Triterpenoids can improve the skin's water-oil balance, reducing dryness and itching. Furthermore, inhibiting sebum secretion may reduce inflammation to some extent, and the extract also contains anti-inflammatory components such as flavonoids, thus possessing a certain anti-inflammatory effect on the skin. Oldenlandia diffusa extract can inhibit melanin production and reduce the production of inflammatory factors, making it suitable for use in products with whitening and antibacterial functions. Other studies, through molecular docking and molecular dynamics simulations, have indicated that some sesquiterpenoids and flavonoids in Oldenlandia diffusa extract can bind to androgen receptors, occupying binding sites. Therefore, the inventors speculate that adding this extract to oil-control products may reduce the binding of DHT to androgen receptors, thereby reducing sebum secretion. Yeast / kelp fermentation products utilize the symbiotic relationship between algae and natural yeast to release nutrients from the algae. Besides reducing sebum secretion, it can also increase the content of ceramides in the skin, improving dryness and roughness. Usnea bark extract can shrink the walls of sweat glands, thus stopping sweating. Extracts from the bark and leaves of witch hazel can be used in skincare products.

[0008] During actual experiments, the inventors discovered that the synergistic effects of the Norwegian spruce leaf extract, Hedyotis diffusa extract, yeast / lamb fermentation product, Usnea barbata extract, and witch hazel extract in this invention work together to control oil, repair the skin barrier, reduce inflammation and bacteria, maintain microenvironmental stability, and reduce abnormal activation of sebaceous glands. It can reduce compensatory sebum secretion through a closed-loop pathway and alleviate compensatory secretion through long-term stabilization, making it suitable for skin that requires long-term oil control and is prone to sensitivity.

[0009] Preferably, the oil-controlling and repairing composition comprises the following components in parts by weight: 1-1.5 parts of Norway spruce leaf extract, 0.2-0.3 parts of Hedyotis diffusa extract, 2-4 parts of yeast / lamb fermentation product, 0.2-0.3 parts of Usnea indica extract, and 0.8-1.5 parts of witch hazel extract.

[0010] During actual experiments, the inventors discovered that the weight proportions of each component in the composition have a significant impact on the oil-controlling effect and barrier repair function of the final composition. When the weight proportions are within the above range, the final composition can better alleviate the problem of compensatory increased sebum secretion and has a better barrier repair effect.

[0011] Preferably, the weight percentage of the North American witch hazel extract is 15-25% based on the total weight of the oil-controlling and repairing composition.

[0012] During actual experiments, the inventors discovered that the weight percentage of North American witch hazel extract in the composition has a significant impact on the oil control time and barrier repair function of the final composition. When the weight percentage of North American witch hazel extract in the composition is within the above range, the final composition can better solve the problem of compensatory increased sebum secretion and has a better barrier repair effect.

[0013] Preferably, the extracts described in this invention can be commercially available products or can be prepared in-house.

[0014] Preferably, the North American witch hazel extract includes bark extract and leaf extract.

[0015] During actual experiments, the inventors discovered that when the North American witch hazel extract includes both bark and leaf extracts, it alleviates compensatory secretion and prolongs its effectiveness, achieving immediate oil control and better barrier repair. Witch hazel bark extract is rich in hydrolyzable tannins, which can physically shrink pores and reduce the expansion of sebum excretion channels, thus achieving better immediate oil control. Furthermore, it can significantly inhibit hyaluronidase, maintaining deep hydration and preventing compensatory sebum secretion caused by excessive dryness, achieving deep moisturizing. Witch hazel leaf extract contains condensed tannins, which have a stronger antibacterial effect. On one hand, it can inhibit excessive sebum secretion caused by the overgrowth of microorganisms on the skin surface; on the other hand, it also has a strong anti-inflammatory effect, reducing sebum secretion caused by inflammatory factors. When witch hazel bark and leaf extracts work synergistically, the combination of astringency and antibacterial action reduces sebum secretion while blocking the triggers for compensatory secretion.

[0016] Preferably, the weight ratio of bark extract to leaf extract in the North American witch hazel extract is 1:(0.5-5). More preferably, the weight ratio of bark extract to leaf extract in the North American witch hazel extract is 1:(1-2).

[0017] During actual experiments, the inventors discovered that the weight ratio of bark extract to leaf extract in the North American witch hazel extract further affects the oil-controlling effect and barrier repair effect. When the weight ratio of bark extract to leaf extract is within the above-mentioned specific range, the final composition can better solve the problem of compensatory sebum secretion, increase the oil-controlling effect of the product, and has a better barrier repair effect.

[0018] In a second aspect of this application, the use of the described oil-controlling and repairing composition in the preparation of cosmetics is provided.

[0019] In a third aspect of this application, a cosmetic product is provided, the cosmetic product comprising the oil-controlling and repairing composition described above.

[0020] Preferably, the cosmetic includes any one of toner, lotion, cream, mask, essence water, essence oil, and spray.

[0021] Preferably, the cosmetic is an essence water, comprising the following components in parts by weight: 2-8 parts of the oil-controlling and repairing composition, 7-22 parts of moisturizer, 0.8-1.2 parts of preservative, and 0.04-0.06 parts of chelating agent.

[0022] Preferably, the humectant includes at least one of glycerin, sorbitol, and propylene glycol, the preservative includes at least one of p-hydroxyacetophenone and hexanediol, and the chelating agent includes EDTA-2Na.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: In actual experiments, the inventors discovered that the extracts of Norway spruce leaves, Oldenlandia diffusa, yeast / lamb fermentation products, Usnea barbata extract, and witch hazel extract of the present invention work synergistically to exert effects in oil control, barrier repair, anti-inflammatory and antibacterial properties, maintaining microenvironmental stability, and reducing abnormal activation of sebaceous glands. It can reduce compensatory sebum secretion through a closed-loop pathway and alleviate compensatory secretion through long-term stabilization, making it suitable for skin that requires long-term oil control and is prone to sensitivity. Attached Figure Description

[0024] Figure 1 This is a graph showing the change in oil spots on the right cheek after using a blank application example;

[0025] Figure 2 This is a graph showing the change in oil spots on the right cheek after using application example 1;

[0026] Figure 3 The image shows the change in oil spots on the right cheek after using the comparative application example 5. Detailed Implementation

[0027] To better illustrate the purpose, technical solution, and advantages of this invention, the invention will be further described below in conjunction with the accompanying drawings and specific embodiments. The purpose is to provide a detailed understanding of the invention, not to limit it. All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this invention. Unless otherwise specified, the experimental reagents and instruments designed in the embodiments and comparative examples of this invention are commonly used reagents and instruments, all of which are commercially available. Unless otherwise specified, the experimental methods used in the embodiments and comparative examples are conventional methods; and unless otherwise specified, the raw materials used in parallel experiments are from the same batch.

[0028] The raw materials of this invention will now be further described, but are not limited to the following raw materials:

[0029] Norway spruce leaf extract: purchased from Norture Lights cell Science Inc., Canada; product name: Norway spruce (PICEA EXCELSA) leaf extract.

[0030] Hedyotis diffusa extract: purchased from Draco Natural Products, product name: Hedyotis diffusa extract;

[0031] Yeast / Laminaria fermentation product: purchased from Hemei Biotechnology, product name Bioetide® Laminaria;

[0032] Usnea extract: purchased from Xi'an Puris Biotechnology Co., Ltd., product name is Usnea extract;

[0033] North American witch hazel bark extract: purchased from Xi'an Lvtian Biotechnology Co., Ltd., product name: North American witch hazel extract;

[0034] North American witch hazel leaf extract: purchased from Guangzhou Pengyuan Chemical Co., Ltd., product name is witch hazel extract;

[0035] Yeast extract: purchased from Provital, product name shiloxome TM 73540.

[0036] Rosemary extract: Purchased from Xi'an Ruiying Biotechnology Co., Ltd., product name is rosemary extract.

[0037] Examples and Comparative Examples

[0038] This invention provides an oil-controlling and repairing composition. The components and weight parts of the oil-controlling and repairing composition are shown in Tables 1 and 2. The preparation method of the oil-controlling and repairing composition is as follows: the components are mixed evenly to obtain the oil-controlling and repairing composition.

[0039] Table 1

[0040]

[0041] Note: The following is an explanation regarding North American witch hazel extract:

[0042] In North American witch hazel extract-1, the North American witch hazel extract includes North American witch hazel bark extract and North American witch hazel leaf extract in a weight ratio of 1:1;

[0043] In North American witch hazel extract-2, the North American witch hazel extract includes North American witch hazel bark extract and North American witch hazel leaf extract in a weight ratio of 1:2;

[0044] In North American witch hazel extract-3, the North American witch hazel extract includes North American witch hazel bark extract and North American witch hazel leaf extract in a weight ratio of 1:0.5;

[0045] In North American witch hazel extract-4, the North American witch hazel extract includes North American witch hazel bark extract and North American witch hazel leaf extract in a weight ratio of 1:5;

[0046] North American witch hazel extract-5 contains only North American witch hazel bark extract;

[0047] North American witch hazel extract-6 contains only North American witch hazel leaf extract;

[0048] Table 2

[0049]

[0050] Application examples

[0051] An application example of this invention provides an oil-controlling and repairing product comprising the following components in weight percentage: 2-8% of the oil-controlling and repairing composition, 3-8% of glycerin, 1-6% of sorbitol, 3-8% of propylene glycol, 0.4-0.6% of p-hydroxyacetophenone, 0.4-0.6% of hexanediol, 0.04-0.06% of EDTA-2Na, with the balance being water.

[0052] Preparation method: Mix p-hydroxyacetophenone, hexanediol, and propylene glycol, heat to 60°C to dissolve, cool to below 45°C, mix with other ingredients, stir evenly, and then dispense.

[0053] Application Example 1-10 and Comparative Application Example 1-7

[0054] Application Examples 1-10 and Comparative Application Examples 1-7 of this invention provide an oil-controlling product comprising the following components in weight percentage: 4% of the oil-controlling and repairing composition described in Examples 1-10 and Comparative Examples 1-7, 5% glycerin, 3% sorbitol, 5% propylene glycol, 0.4% p-hydroxyacetophenone, 0.4% hexanediol, 0.04% EDTA-2Na, with the balance being water.

[0055] Specifically, the oil-controlling and repairing composition in the oil-controlling product provided in Application Example 1 is the oil-controlling and repairing composition prepared in Example 1, and the oil-controlling and repairing composition in the oil-controlling product provided in Comparative Application Example 1 is the oil-controlling and repairing composition prepared in Comparative Example 1, and so on, without going into detail.

[0056] Application Example 11

[0057] Application Example 11 of the present invention provides an oil-controlling product comprising the following components in weight percentage: 2% of the oil-controlling and repairing composition described in Example 1, 5% glycerin, 3% sorbitol, 5% propylene glycol, 0.4% p-hydroxyacetophenone, 0.4% hexanediol, 0.04% EDTA-2Na, with the balance being water.

[0058] Application Example 12

[0059] Application Example 12 of the present invention provides an oil-controlling product comprising the following components in weight percentage: 6% of the oil-controlling and repairing composition described in Example 1, 5% glycerin, 3% sorbitol, 5% propylene glycol, 0.4% p-hydroxyacetophenone, 0.4% hexanediol, 0.04% EDTA-2Na, with the balance being water.

[0060] Blank application example

[0061] The blank application example of this invention provides a product comprising the following components in weight percentage: 5% glycerol, 3% sorbitol, 5% propylene glycol, 0.4% p-hydroxyacetophenone, 0.4% hexanediol, 0.04% EDTA-2Na, with the balance being water.

[0062] Performance Test - 1 Oil Control Effect Test

[0063] Test group: Compositions prepared in Examples 1-10 and Comparative Examples 1-7.

[0064] Test procedure: (1) Solution preparation: ① Sample stock solution preparation: Take 0.10 mL of each example and comparative example sample, add 0.90 mL of sodium pyruvate-free DMEM (Gibco, C11965500BT) culture medium to prepare a 10% stock solution; ② Hydrocortisone stock solution preparation: Weigh 0.01 g of hydrocortisone (Shanghai Yuanye Biotechnology, S31360), add 1 mL of methanol to prepare a 10 mg / mL stock solution; ③ Isotretinoin stock solution preparation: Weigh 0.01 g of isotretinoin (Shanghai Dibai Biotechnology, H573005), add 1 mL of methanol to prepare a 10 mg / mL stock solution; ④ Culture medium: Take 10 mL of fetal bovine serum FBS (Macklin, F917980), add 90 mL of DMEM culture medium to prepare a sodium pyruvate-free DMEM culture medium containing 10% FBS; ⑤ Maintenance culture medium: Take 1 mL of fetal bovine serum FBS, add 99 Prepare sodium pyruvate-free DMEM medium containing 1% FBS using mL of DMEM culture medium; ⑥ PBS buffer: purchased from Gibco, catalog number C10010500BT.

[0065] (2) Experimental groups: Negative control group (NT): maintenance culture medium; Model group (M): maintenance culture medium + hydrocortisone stock solution (final hydrocortisone concentration of 10 ng / mL); Positive control group (PC): isotretinoin stock solution + maintenance culture medium + hydrocortisone stock solution (final isotretinoin concentration of 0.01 mM, final hydrocortisone concentration of 10 ng / mL); Sample group (TA): sample stock solution + maintenance culture medium + hydrocortisone stock solution (final sample concentration of 2.5%, final hydrocortisone concentration of 10 ng / mL).

[0066] (3) Quantitative fluorescence assay of neutral lipids: ① The cell line used was human sebaceous gland cells SZ95 (Shanghai Qingqi Biotechnology, BFN60807569), passaged 7 times. The test conditions were: incubator temperature 37±1℃, humidity 90±5%, carbon dioxide 5±1%; the cell suspension was seeded into 96-well cell culture plates (black bottom transparent type), with a density of 1.0*102 in each well. 4Add 100 μL of culture medium to each well and incubate for 18-24 h; ② Discard the supernatant and add 100 μL of the required components for the negative control group, positive control group, model group, and sample group according to the above experimental groups; after incubation for 48 h, discard the supernatant, wash twice with PBS, add 100 μL of 10 μg / mL Nile Red dye (Shanghai Yuanye Biotechnology, S02N11G129713) to the sample group, and add 15 ng / mL fluorescein diacetate FDA (Shanghai Yuanye Biotechnology, J22A11H122040) to the model group, incubate for 5 min, and detect the released fluorescence on a multifunctional microplate reader. Excitation wavelengths of 485 nm and 494 nm and absorption wavelengths of 565 nm and 523 nm were used to detect the fluorescence intensity of Nile Red and FDA, respectively; ③ The results were determined by the ratio of Nile Red to FDA (OD ratio). The percentage of neutral lipids in cells (%) = OD ratio of sample or positive control group / OD ratio of model group * 100%. Improvement rate of lipid secretion = (percentage of neutral lipids) M - Percentage of neutral lipids TA / PC (%) / (percentage of neutral lipids) M - Percentage of neutral lipids NT ) × 100%.

[0067] (4) The test results are shown in Table 3.

[0068] Table 3

[0069]

[0070] As shown in the table above, the compositions prepared in Examples 1-10 improved sebum secretion by more than 40%, demonstrating excellent oil control effects. A comparison of Examples 1-5 shows that the weight percentage of each component in the composition significantly affects the oil control duration and barrier repair function of the final composition. The oil control effect is better when the composition contains 1-1.5 parts of Norway spruce leaf extract, 0.2-0.3 parts of Oldenlandia diffusa extract, 2-4 parts of yeast / lambda fermentation product, 0.2-0.3 parts of Usnea indica extract, and 0.8-1.5 parts of witch hazel extract. A comparison of Examples 1 and Examples 6-10 shows that the type of witch hazel extract has a significant impact on the oil control effect. The oil control effect is better when the witch hazel extract includes both bark and leaf extracts; the oil control effect is optimal when the weight ratio of bark extract to leaf extract is 1:(1-2).

[0071] As can be seen from the comparison of Example 1 and Comparative Examples 1-5, a good oil-controlling effect cannot be achieved when one component of the oil-controlling and repairing composition is missing, or when the total weight remains unchanged but one component is missing. As can be seen from the comparison of Example 1 and Comparative Examples 6-7, a good oil-controlling effect cannot be achieved when other components are substituted for the components in this invention.

[0072] Performance Test - 2: Skin Long-lasting Oil Control, Repair, and Moisturizing Effect Test.

[0073] Test groups: Products prepared in Application Examples 1-12, Comparative Application Examples 1-7, and Blank Application Examples.

[0074] Testing process: Select individuals with oily skin aged 18-45 (facial oil content >70μg / cm³ within 8 hours prior to product use). 2 Male volunteers were included. Subjects sat quietly for 30 minutes in a constant temperature and humidity room (21±1℃, 50±10%). Initial facial oil content, initial moisture content, and initial TEWL (transdermal water loss) values ​​were measured using a Sebumeter (SM815, Courage and Khazaka), a Corneometer® CM 825 (Courage + Khazaka), and a Tewameter®™ Hex (Courage + Khazaka). Sebum was collected five times from both cheeks using D-Squame™ D100 skin tape. Quantitative lipidomics sequencing analysis was performed using a quantitative lipidomics sequencer from Wuhan Maiwei Metabolic Biotechnology Co., Ltd. The average ceramide-NP content in the volunteers' skin was calculated based on the sequencing results. Subjects were randomly divided into 20 groups of 5 people each. Each group randomly applied the corresponding product to the entire face daily. Oil content, moisture content, TEWL value, and ceramide content were measured after 28 days. The improvement of each indicator for each volunteer was analyzed, and the improvement was expressed as a rate of change. The calculation method is as follows:

[0075] Rate of change relative to the initial value % = (T 清洗前 -T 28 ) / T 清洗前 *100%;

[0076] The test results are shown in Table 4.

[0077] Table 4

[0078]

[0079] As shown in the table above, the compositions prepared in the embodiments of the present invention, when formulated into cosmetics, exhibit a ceramide increase rate of over 15%, a TEWL value improvement rate of over 15%, a skin moisture improvement rate of over 25%, and an oil content improvement rate of over 20%. The synergistic effect of the Norway spruce leaf extract, Hedyotis diffusa extract, yeast / lamb fermentation product, Usnea barbata extract, and witch hazel extract in this invention provides long-lasting oil control and better barrier repair effects, making it suitable for skin that requires long-term oil control and is prone to sensitivity.

[0080] As can be seen from the comparison of Application Examples 1-5, the weight parts of each component in the composition have a significant impact on the oil control duration and barrier repair function of the final composition. When the content is 1-1.5 parts of Norway spruce leaf extract, 0.2-0.3 parts of Hedyotis diffusa extract, 2-4 parts of yeast / lamb molasses fermentation product, 0.2-0.3 parts of Usnea indica extract, and 0.8-1.5 parts of witch hazel extract, the long-lasting oil control and barrier repair effects are better. As can be seen from the comparison of Application Examples 1 and Application Examples 6-10, the type of witch hazel extract has a significant impact on the long-lasting oil control and barrier repair effects. When the witch hazel extract includes both bark extract and leaf extract, the long-lasting oil control and barrier repair effects are better; when the weight ratio of bark extract to leaf extract is 1:(1-2), the long-lasting oil control and barrier repair effects are optimal.

[0081] As can be seen from the comparison between Application Example 1 and Comparative Application Examples 1-3, when the oil-controlling and repairing composition lacks one component, it cannot simultaneously achieve both oil-controlling and barrier-repairing effects. For example, Comparative Application Example 1 lacks Norway spruce leaf extract; although the increase rate of ceramides, the improvement rate of TEWL value, and the improvement rate of skin moisture are good, the improvement rate of oil content is less than 10%, resulting in extremely poor oil-controlling effects. Comparative Application Examples 2-3 lack one of yeast / lamb fermentation product or witch hazel extract, respectively; the improvement rate of oil content is less than 15%, resulting in poor oil-controlling and barrier-repairing effects.

[0082] As can be seen from the comparison between Application Example 1 and Comparative Application Examples 4-5, when the oil-controlling and repairing composition lacks one component but the total weight remains unchanged, the oil-controlling effect and barrier repair effect are still significantly different from those of the examples. As can be seen from the comparison between Application Example 1 and Comparative Application Examples 6-7, when other components replace some components in this invention, good results cannot be achieved; the various components of this invention exhibit synergistic effects.

[0083] Performance Test - 3: Instant Oil Control Effect Test on Skin

[0084] Test groups: Products prepared using Application Examples 1, 5, 8, 9, 12, Comparative Application Example 5, and Blank Application Example.

[0085] Testing process: Select individuals with oily skin aged 18-45 (facial oil content >70μg / cm³ within 8 hours prior to product use). 2Male volunteers were included. Subjects sat quietly for 30 minutes in a constant temperature and humidity room (21±1℃, 50±10%). The average size of oil spots before cleansing was measured. Facial cleanser was applied three times (simulating a decline in barrier function due to long-term use of strong cleansing products). The average size of oil spots on the cheeks was measured using the Visioscan®VC 20plus skin texture analysis system (a smaller average oil spot size index indicates less sebum production), obtaining the initial value, i.e., the 0-hour experimental data. Subjects were randomly divided into 7 groups of 5 people each, and randomly used the oil-control product provided by this invention (half-face test; the right cheek used products prepared in application examples 1, 5, 8, 9, 12, control application example 5, and blank application example; the left cheek was untreated). The average oil spot size was measured at 2 hours and 4 hours, and the improvement of each volunteer's indicators was analyzed. The improvement was expressed as an improvement rate. The calculation method is as follows:

[0086] Improvement rate relative to the left side of the face % = (T) 左脸 - T 右脸 ) / T 左脸 *100%; where, the improvement rate of the left side of the face at 2 hours is % = (T2) 左脸 - T2 右脸 ) / T2 左脸 *100%, Improvement rate of the left side of the face at 4 hours = (T4) 左脸 - T4 右脸 ) / T4 左脸 *100%.

[0087] Test results: The average oil spot size and change rate data are shown in Table 5.

[0088] Table 5

[0089]

[0090] From Table 5 and Figure 1-3 It is understood that the composition prepared in the embodiments of the present invention, when made into cosmetics, can effectively alleviate the problem of compensatory increased sebum secretion and increase the oil control effect of the product. Figure 1 This is a graph showing the change in oil spots on the right cheek after using a blank application example; Figure 2 This is a graph showing the change in oil spots on the right cheek after using application example 1; Figure 3 The image shows the change in oil spots on the right cheek after using the comparative application example 5.

[0091] The volunteers tested in this invention did not undergo any treatment on their left cheeks. As shown in Table 5, excessive cleansing damaged the epidermal lipid bilayer structure. Sebum secretion increased after 2 hours of excessive cleansing, and the increase was extremely significant after 4 hours of excessive cleansing. This application uses facial cleanser to cleanse the face 3 times to simulate the decline in barrier function caused by long-term use of strong cleansing products, and it is feasible to conduct a compensatory sebum secretion experiment.

[0092] The results of the right cheek experiments in Application Examples 1, 5, 8, 9, and 12 show that the cosmetics prepared in the application examples of this application can effectively alleviate compensatory increased sebum secretion.

[0093] The results of the experiments in Application Example 1 and Comparative Application Example 5 show that although the previous experiments proved that Comparative Application Example 5 also had a good oil control effect, the effect of Comparative Application Example 5 in alleviating compensatory sebum secretion was poor.

[0094] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A composition containing Norway spruce leaf oil-controlling and repairing agents, characterized in that, It is composed of the following components in parts by weight: 1-1.5 parts of Norway spruce leaf extract, 0.2-0.3 parts of Hedyotis diffusa extract, 2-4 parts of yeast / lamb fermentation product, 0.2-0.3 parts of Usnea indica extract, and 0.8-1.5 parts of witch hazel extract. The North American witch hazel extract comprises bark extract and leaf extract, wherein the weight ratio of bark extract to leaf extract is 1:(1-2).

2. The oil-controlling and repairing composition as described in claim 1, characterized in that, The weight percentage of the North American witch hazel extract is 15-25% based on the total weight of the oil-controlling and repairing composition.

3. The use of an oil-controlling and repairing composition as described in claim 1 or 2 in the preparation of cosmetics.

4. A cosmetic product, characterized in that, The cosmetic product includes the oil-controlling and repairing composition as described in claim 1 or 2.

5. The cosmetic product as described in claim 4, characterized in that, The cosmetics include any one of the following: toner, lotion, cream, mask, and essential oil.

6. The cosmetic product as described in claim 4, characterized in that, The cosmetic product is an essence water, comprising the following components by weight: The composition according to claim 1 or 2 contains 2-8 parts of oil-controlling and repairing agent, 7-22 parts of moisturizer, 0.8-1.2 parts of preservative, and 0.04-0.06 parts of chelating agent.

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