Micro-ecological skin-tendering composition, skin-tendering shower gel and application

Abstract

The invention discloses a micro-ecological skin-tendering composition, skin-tendering shower gel and application, and relates to the technical field of cosmetics. The micro-ecological skin tendering composition is prepared from the following components: a moisturizing composition, an oil-control antibacterial compound acid composition and a grease balance protection composition, the moisturizing composition is selected from one or more of glycerol, propylene glycol, butanediol, pentanediol, PEG-8 (Polyethylene Glycol) and trehalose; the oil-control antibacterial composite acid composition is selected from two or more of salicylic acid, tartaric acid, lactic acid and azelaic acid. According to the micro-ecological skin-tendering composition, the skin-tendering shower gel and the application provided by the invention, in the micro-ecological skin-tendering composition, through the synergistic effect of the moisturizing composition, the oil-control antibacterial compound acid composition and the grease balance protection composition, the optimal balance of mildness and efficacy can be realized. The skin-tendering shower gel applying the micro-ecological skin-tendering composition is mild and clean, and can simultaneously realize the effects of oil control, bacteriostasis, oil control, barrier repair and acne removal.

Description

Technical Field

[0001] This invention relates to the field of cosmetic technology, and in particular to a microecological skin-rejuvenating composition, a skin-rejuvenating shower gel, and their applications. Background Technology

[0002] In recent years, with the deepening research into skin microecology, people have gradually realized that a large number of microbial communities, such as bacteria and fungi, exist on the skin surface, and these are closely related to skin health. Maintaining the balance of the skin microecology plays an important role in preventing and improving various skin problems. By regulating the balance of the skin microecology, the skin's barrier function can be enhanced, preventing and improving problems such as excessive sebum secretion, acne, pimples, itching, and allergies, thus keeping the skin healthy.

[0003] With rapid societal development, increased pollution and ultraviolet radiation from sunlight have led to a more complex external environment for the skin. This makes the skin's microecological balance susceptible to external stimuli, resulting in excessive sebum secretion and the overgrowth of bacteria such as Propionibacterium acnes and Malassezia, leading to acne, pimples, roughness, and sensitivity. Furthermore, as consumers' living standards improve, their demands for bath products are also increasing, with consumers seeking more refined body care. Traditional bath products typically focus only on cleansing, neglecting the research and protection of the skin's microecological balance. Current treatments for acne, pimples, and dull, oily skin often include topical vitamin A derivatives, antibiotics, and high concentrations of salicylic acid and fruit acids, which can easily cause skin irritation and drug tolerance. Therefore, there is an urgent need for a microecological skin-rejuvenating composition that, while gently cleansing, regulates the skin's microecological balance, improving acne, pimples, dullness, and oily skin. Meeting consumers' refined needs for healthy, balanced, and rejuvenated skin is of significant market importance. Summary of the Invention

[0004] The technical problem this invention aims to solve is the current lack of truly gentle and effective bath products on the market that regulate the microecological balance of the skin, control oil, treat acne, and nourish the skin. In view of this problem, the invention develops a bath product that, while providing gentle cleansing, also regulates the skin's microecological balance, improves acne-prone skin, reduces oil secretion, treats acne, and nourishes the skin, meeting consumer demand and market potential. This invention achieves optimal skin health and nourishing care composition (microecological nourishing composition) by screening moisturizing components, oil-controlling and antibacterial components, and oil-balancing protective components, and optimizing the proportions of each component.

[0005] Specifically, the following technical solutions are included: In a first aspect, a microecological skin-rejuvenating composition is provided, comprising the following components: a moisturizing composition, an oil-controlling and antibacterial complex acid composition, and an oil-balancing protective composition; wherein the moisturizing composition is selected from one or more of glycerin, propylene glycol, butylene glycol, pentylene glycol, PEG-8 (polyethylene glycol-8), and trehalose; wherein the oil-controlling and antibacterial complex acid composition is selected from two or more of salicylic acid, fruit acid, lactic acid, and azelaic acid; wherein the oil-balancing protective composition is selected from one or more of tea tree oil, bergamot fruit oil, cedarwood oil, sandalwood oil, freesia extract, gardenia extract, grapefruit leaf extract, pear blossom extract, Rosa damascena flower oil, camellia flower extract, white tea essential oil, lavender essential oil, orange blossom oil, and centella asiatica leaf extract.

[0006] Furthermore, the weight ratio of the oil-controlling and antibacterial compound acid composition to the oil-balancing and protective composition is 1:(0.1-2).

[0007] Furthermore, the moisturizing composition comprises glycerin, PEG-8, and trehalose.

[0008] Furthermore, the fruit acid in the oil-controlling and antibacterial compound acid composition is citric acid, and the oil-controlling and antibacterial compound acid composition is composed of salicylic acid and citric acid.

[0009] In a second aspect, a skin-nourishing shower gel is provided, comprising the microecological skin-nourishing composition described in the first aspect.

[0010] Furthermore, the moisturizing composition accounts for 0.5-10% of the weight of the skin-nourishing shower gel, and the oil-controlling and antibacterial compound acid composition accounts for 0.5-2.5% of the weight of the skin-nourishing shower gel.

[0011] Furthermore, the oil-balancing protective composition accounts for 0.05-2.5% of the weight of the skin-nourishing shower gel.

[0012] Furthermore, the moisturizing composition accounts for 4.5-10% of the weight of the skin-nourishing shower gel, the oil-controlling and antibacterial compound acid composition accounts for 0.8-1.2% of the weight of the skin-nourishing shower gel, and the oil-balancing and protective composition accounts for 0.05-1.35% of the weight of the skin-nourishing shower gel.

[0013] Furthermore, the skin-nourishing shower gel also includes one or more of the following: disodium EDTA, cocamidopropyl betaine, sodium lauryl ether sulfate, disodium cocoamphodiacetate, acrylic (ester) copolymers, sodium hydroxide, phenoxyethanol, fragrance, sodium benzoate, and cocamidomethyl MEA.

[0014] Preferably, the skin-nourishing shower gel is composed of a microecological skin-nourishing composition, disodium EDTA, cocamidopropyl betaine, sodium lauryl ether sulfate, disodium cocoamphodiacetate, acrylic (ester) copolymer, sodium hydroxide, phenoxyethanol, fragrance, sodium benzoate, cocamidomethyl MEA, and deionized water.

[0015] Thirdly, the application of the microecological skin-rejuvenating composition as described in the first aspect in bath products is provided.

[0016] The beneficial effects of this invention are as follows: This invention provides a microecological skin-rejuvenating composition, a skin-rejuvenating shower gel, and its application. The microecological skin-rejuvenating composition achieves an optimal balance between gentleness and efficacy through the synergistic effect of a moisturizing composition, an oil-controlling and antibacterial complex acid composition, and an oil-balancing protective composition. The skin-rejuvenating shower gel using this microecological skin-rejuvenating composition is gentle and cleansing, simultaneously providing oil control, antibacterial effects, barrier repair, and acne treatment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. 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.

[0018] Figure 1 The graph shows the change in acne volume after using the skin-nourishing body wash in Examples 1-6 and Comparative Examples 1-4. Figure 2 The graph shows the changes in heme concentration after using the skin-nourishing body wash from Examples 1-6 and Comparative Examples 1-4. Detailed Implementation

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0021] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0022] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0023] To better understand the technical content of the present invention, the technical solution of the present invention will be further introduced and explained below with reference to specific embodiments.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0025] The bergamot fruit oil, orange blossom oil, and lavender essential oil used in this invention were purchased from Jiangxi Hengcheng Natural Fragrance Oil Co., Ltd.; the gardenia flower extract, white tea essential oil, pear blossom extract, and freesia extract were purchased from Guangzhou Yueze Chemical Co., Ltd.; the white tea essential oil was purchased from Firmenich; and the centella asiatica leaf extract was purchased from Guangdong Qinxue Daily Chemical Co., Ltd.

[0026] Prepare the skin-nourishing body washes of Examples 1-6 according to the formulas in Table 1: Table 1. Skin-nourishing body wash formulations (by weight) for Examples 1-6

[0027] Prepare the skin-nourishing body washes for Comparative Examples 1-4 according to the formulas in Table 2: Table 2. Skin-Nourishing Shower Gel Formulas (by weight) for Comparative Examples 1-4

[0028] Prepare the skin-nourishing body washes for Comparative Examples 5-8 according to the formulas in Table 3: Table 3. Comparative Examples 5-8: Skin-Nourishing Shower Gel Formulas (by weight percentage)

[0029] The preparation processes of the example and comparative shower gels are shown below: (1) Material preparation: Weigh the raw materials according to the formula; (2) Preparation: a. First, add some deionized water to the mixing tank, start stirring, add disodium EDTA, glycerin, and sodium lauryl ether sulfate, stir for 13 minutes until completely dissolved, heat to 58°C, add cocamidopropyl betaine, disodium cocoamphodiacetate, and cocamidomethyl MEA, keep warm and stir for 5 minutes until completely dissolved; b. ① Mix the acrylic (ester) copolymer and an appropriate amount of deionized water evenly and then add it to the mixing tank; ② Dissolve sodium hydroxide and an appropriate amount of deionized water and then add it to the mixing tank; c. Turn on the cooling system and wait until the temperature drops below 45℃: ① Dissolve the (daily-use) fragrance, salicylic acid and polyethylene glycol-8 separately and add them to the mixing tank; ② Dissolve sodium benzoate and an appropriate amount of deionized water and add them to the mixing tank; ③ Add phenoxyethanol and the oil balance protection composition; ④ Dissolve trehalose and citric acid separately with an appropriate amount of deionized water and add them to the mixing tank, then add the remaining deionized water and stir for 18 minutes until the mixture is uniform.

[0030] (3) Inspection and filtration: Sampling inspection, and the inspection is qualified.

[0031] Performance Testing – In Vitro Antibacterial Efficacy Determination: (1) Malassezia antibacterial test method: A standard strain of Malassezia furfur was selected, and the antibacterial effect was tested using the inhibition zone method. The carrier of the impregnated sample (example / comparative example) was placed on the surface of an agar plate inoculated with Malassezia. The active ingredient in the sample formed a concentration gradient as it diffused. After incubation, inhibition zones were formed in areas where the concentration was higher than the minimum inhibitory concentration (MIC). The presence and diameter of the inhibition zones were observed to determine the antibacterial activity and strength of the sample. An inhibition zone diameter greater than 7 mm indicates that the product has antibacterial effect. An inhibition zone diameter less than 7 mm indicates that the product has no antibacterial effect.

[0032] The skin-nourishing body washes from Examples 1-6 and Comparative Examples 1-4 were subjected to a Malassezia antibacterial test. The test results are shown in Table 4 below. Table 4. Antibacterial test results of Malassezia in Examples 1-6 and Comparative Examples 1-4

[0033] As shown in Table 4, the skin-nourishing shower gel of the present invention has a good antibacterial effect against Malassezia. However, skin-nourishing shower gels prepared lacking one or more of the microecological skin-nourishing composition components (Comparative Examples 1-4) have a poorer antibacterial effect against Malassezia.

[0034] (2) Propionibacterium acnes antibacterial test method: The standardized Propionibacterium acnes suspension was quantitatively mixed with the test sample (example / comparative example). After 1 min, a neutralizing agent was added to terminate the reaction and eliminate residual interference. Subsequently, the surviving colonies were counted by culturing, and the antibacterial rate was calculated by comparing with the blank control group, thereby accurately quantifying the antibacterial ability of the sample.

[0035] The skin-nourishing body washes from Examples 1-6 and Comparative Examples 1-4 were subjected to an antibacterial test against Propionibacterium acnes. The test results are shown in Table 5 below. Table 5. Antibacterial test results of Propionibacterium acnes in Examples 1-6 and Comparative Examples 1-4

[0036] As shown in Table 5, the skin-nourishing shower gel of the present invention has a good antibacterial effect against Propionibacterium acnes. However, skin-nourishing shower gels prepared lacking one or more of the components of the microecological skin-nourishing composition (Comparative Examples 1-4) have a poorer antibacterial effect against Propionibacterium acnes.

[0037] Performance Testing – Red Blood Cell Hemolysis Assay (RBC) Principle of Red Blood Cell Hemolysis Test (RBC): Chemical substances damage cell membranes, altering their permeability and causing hemoglobin leakage and denaturation, ultimately leading to hemolysis. Products containing surfactants primarily cause damage by disrupting the lipid and protein structure of the eye, similar to the basic principle of the erythrocyte hemolysis test. This method is used to evaluate the eye irritation of cosmetics. The concentration of the cosmetic at which 50% hemolysis of rabbit erythrocytes occurs (HD50 value) and the hemoglobin denaturation index (DI, %) are tested. The irritation index IP = HD50 / DI is calculated, and the IP = HD50 / DI value is used as the evaluation standard to classify eye irritation.

[0038] Evaluation criteria: IP ≥ 100 indicates no irritation, 100 > IP ≥ 10 indicates slight irritation, 10 > IP ≥ 1 indicates mild irritation, 1 > IP ≥ 0.1 indicates irritation, and IP < 0.1 indicates severe irritation.

[0039] The skin-nourishing body washes from Examples 1-6 and Comparative Examples 1-8 were subjected to a red blood cell hemolysis test. The test results are shown in Table 6 below. Table 6 Results of erythrocyte hemolysis test in Examples 1-6 and Comparative Examples 1-8

[0040] As shown in Table 6, the hemolysis test results of the skin-nourishing body wash in the embodiments of the present invention showed that the IP value was >100, indicating no irritation and excellent gentleness. However, the skin-nourishing body washes prepared lacking the moisturizing composition or oil-balancing protective composition in the microecological skin-nourishing composition (Comparative Examples 1 and 3) exhibited slight irritation. Furthermore, the skin-nourishing body wash prepared using a moisturizing composition not within the scope of the present invention (Comparative Example 5) exhibited slight irritation. The skin-nourishing body wash prepared using an oil-controlling and antibacterial compound acid composition not within the scope of the present invention (Comparative Example 6) exhibited mild irritation. Performance Testing – Comprehensive Evaluation We recruited 320 male or female subjects with problems such as oily skin, acne, rough and dull skin to use test samples (example / comparative examples), with 32 people for each sample. We used instrument detection and self-evaluation questionnaires to comprehensively evaluate the skin moisture loss (TWEL), skin oil content, ITA° value, acne-removing efficacy of cosmetics, and consumer self-evaluation after 2 or 4 weeks of continuous use of the test samples, and took the average value.

[0041] (1) Measurement of skin moisture loss (TEWL) TEWL (Temperature-to-Waste Water Loss) is an important parameter for assessing the function of the skin's moisture barrier and can be used to evaluate the strength of the skin barrier function. If the skin barrier function is impaired, TEWL will increase, and the skin will exhibit symptoms such as dryness, flaking, and sensitivity. The better the skin barrier, the higher the moisture content, and the lower the TEWL value. The unit for TEWL is g / hm². 2 .

[0042] The skin-softening body washes of Examples 1-6 and Comparative Examples 1-8 were subjected to a skin moisture loss (TEWL) measurement. The results are shown in Table 7 below: Table 7 Results of skin moisture loss measurement in Examples 1-6 and Comparative Examples 1-8

[0043] As shown in Table 7, the skin-repairing body wash of this invention has a good repairing effect. After 4 weeks of use by consumers, the amount of skin moisture loss was small, indicating that the synergistic effect of the compounded components can enhance the skin barrier function. In addition, the skin-repairing body wash prepared with a moisturizing composition not limited to the scope of this invention (Comparative Example 5), the skin-repairing body wash prepared with an oil-controlling and antibacterial compound acid composition not limited to the scope of this invention (Comparative Example 6), the skin-repairing body wash prepared with an oil-balancing and protective composition not limited to the scope of this invention (Comparative Example 7), and the skin-repairing body wash prepared with an oil-controlling and antibacterial compound acid composition and an oil-balancing and protective composition not limited to the weight ratio range of this invention (Comparative Example 8) did not have a good effect on improving the skin barrier function.

[0044] (2) Skin oil content The study examined changes in oil production on areas of the subject's back with high oil secretion before and after using a skin-nourishing body wash (Example / Comparative).

[0045] The skin-nourishing body washes from Examples 1-6 and Comparative Examples 1-4 were subjected to skin oil content determination. The results are shown in Table 8 below. Table 8 Results of skin oil content determination in Examples 1-6 and Comparative Examples 1-4

[0046] As shown in Table 8, after 4 weeks of continuous use of the skin-nourishing body wash sample of the present invention, the back oil content of the subjects decreased significantly compared with the baseline value, indicating that the skin-nourishing body wash of the present invention has a significant oil-controlling effect.

[0047] Based on the results of skin TWEL value measurement and skin oil content measurement, the results of the embodiments and comparative examples of the present invention show that the moisturizing composition, oil-controlling and antibacterial compound acid composition and oil-balancing protective composition in the microecological skin rejuvenation composition have synergistic effects in oil control and regulating skin barrier function.

[0048] (3) ITA° value: chromaticity coordinate value. The larger the ITA° value, the lighter the skin color. Use the Combo skin color test probe to measure the skin color of the specified area of ​​the lower leg. Take the average value after three parallel measurements and record it.

[0049] The skin-softening body washes of Examples 1-6 and Comparative Examples 1-4 were subjected to ITA° value determination. The skin ITA° values ​​before and after using the skin-softening body washes were measured, and the results are shown in Table 9 below: Table 9. ITA° value determination results for Examples 1-6 and Comparative Examples 1-4

[0050] As shown in Table 9, the skin-nourishing body wash of this embodiment showed a significant increase in ITA° value after 4 weeks of use. This indicates that the skin-nourishing body wash of this embodiment has the effect of improving skin tone and has a certain skin-nourishing and whitening effect. Compared with the control group, the moisturizing composition, oil-controlling and antibacterial compound acid composition, and oil-balancing protective composition in the microecological skin-nourishing composition have a certain synergistic effect.

[0051] (4) Evaluation of the acne-removing efficacy of cosmetics Objective and principle of the experiment to evaluate the acne-removing efficacy of cosmetics: After 14 days of continuous use, the improvement level of acne lesions and the total number of back acne were assessed through subjective evaluation and doctor evaluation. Antera 3D was used to collect and analyze the corresponding parameters of back acne in the subjects, and the changes of each indicator before and after use were compared to determine the acne-removing effect of the product (example / comparative example).

[0052] Table 10 lists the instruments and related parameters for evaluating the acne-removing efficacy of cosmetics: Table 10 Instruments and related parameters for evaluating the acne-removing efficacy of cosmetics

[0053] The skin-rejuvenating body washes of Examples 1-6 and Comparative Examples 1-4 were evaluated for their cosmetic acne-removing efficacy. Figure 1 The graph shows the change in acne volume after using the skin-nourishing body wash in Examples 1-6 and Comparative Examples 1-4. Figure 2 The graph shows the changes in heme concentration after using the skin-nourishing body wash from Examples 1-6 and Comparative Examples 1-4.

[0054] (5) Consumer self-evaluation Consumer self-evaluation was conducted on the skin-nourishing body washes of Examples 1-6 and Comparative Examples 1-4. The evaluation results are shown in Table 11 below: Table 11 Consumer self-evaluation results of Examples 1-6 and Comparative Examples 1-4

[0055] As shown in Table 11, the subjects gave positive feedback on the acne-removing effect of the skin-nourishing body wash of this invention. Specifically, the following feedback received 100.00% approval after 14 days of use: "soothing effect on redness and swelling of pimples and blackheads," "reducing redness of acne scars," "reducing the number of pimples and blackheads," "skin feels smoother at pimple sites," "skin condition on the back feels better," "reduced frequency of acne breakouts," "product gentleness," and "overall satisfaction."

[0056] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A microecological skin-rejuvenating composition, characterized in that, It comprises the following components: a moisturizing composition, an oil-controlling and antibacterial complex acid composition, and an oil-balancing protective composition; the moisturizing composition is selected from one or more of glycerin, propylene glycol, butylene glycol, pentylene glycol, PEG-8, and trehalose; the oil-controlling and antibacterial complex acid composition is selected from two or more of salicylic acid, fruit acid, lactic acid, and azelaic acid; the oil-balancing protective composition is selected from one or more of tea tree oil, bergamot fruit oil, cedarwood oil, sandalwood oil, freesia extract, gardenia extract, grapefruit leaf extract, pear blossom extract, Rosa damascena flower oil, camellia flower extract, white tea essential oil, lavender essential oil, orange blossom oil, and centella asiatica leaf extract.

2. The microecological skin-rejuvenating composition as described in claim 1, characterized in that, The weight ratio of the oil-controlling and antibacterial compound acid composition to the oil-balance protection composition is 1:(0.1-2).

3. The microecological skin-rejuvenating composition as described in claim 1, characterized in that, The moisturizing composition consists of glycerin, PEG-8 and trehalose.

4. The microecological skin-rejuvenating composition as described in claim 1, characterized in that, The fruit acid in the oil-controlling and antibacterial compound acid composition is citric acid, and the oil-controlling and antibacterial compound acid composition is composed of salicylic acid and citric acid.

5. A skin-nourishing shower gel, characterized in that, Includes the microecological skin rejuvenation composition according to any one of claims 1-4.

6. The skin-nourishing shower gel as described in claim 5, characterized in that, The moisturizing composition accounts for 0.5-10% of the weight of the skin-nourishing shower gel, and the oil-controlling and antibacterial compound acid composition accounts for 0.5-2.5% of the weight of the skin-nourishing shower gel.

7. The skin-nourishing shower gel as described in claim 5, characterized in that, The oil-balancing protective composition accounts for 0.05-2.5% of the weight of the skin-nourishing shower gel.

8. The skin-nourishing shower gel as described in claim 5, characterized in that, The moisturizing composition accounts for 4.5-10% of the weight of the skin-nourishing shower gel, the oil-controlling and antibacterial compound acid composition accounts for 0.8-1.2% of the weight of the skin-nourishing shower gel, and the oil-balancing and protective composition accounts for 0.05-1.35% of the weight of the skin-nourishing shower gel.

9. The skin-nourishing shower gel as described in claim 5, characterized in that, It also includes one or more of the following: disodium EDTA, cocamidopropyl betaine, sodium lauryl ether sulfate, disodium cocoamphodiacetate, acrylic (ester) copolymers, sodium hydroxide, phenoxyethanol, fragrance, sodium benzoate, and cocamidomethyl MEA.

10. The application of the microecological skin-rejuvenating composition according to any one of claims 1-4 in bath products.

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