Plant-derived hair cleaning composition and preparation method thereof

Abstract

The invention discloses a plant-derived hair cleaning composition and a preparation method thereof, and relates to the field of wash supplies. The plant-derived hair cleaning composition comprises the following components: a plant extract, a plant modified surfactant, a plant modified conditioner and a plant preservative, the plant extract is selected from one or more of theaceae plants, soapberry plants, leguminous plants, rutaceous plants and lauraceae plants. According to the plant-sourced hair cleaning composition and the preparation method thereof provided by the invention, the plant extract is taken as a main component, and is compounded with the plant modified surfactant and the plant modified conditioner, so that the hair cleaning composition is mild and non-irritant, the cleaning performance and the foaming performance of the composition are enhanced, and the composition is green, safe and free of toxic and side effects. The composition also has the effects of inhibiting malassezia and reducing grease secretion, and has the effects of removing dandruff, controlling oil and protecting scalp barrier.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of washing and caring products, in particular to a plant-derived hair cleaning composition and a preparation method thereof. BACKGROUND

[0002] Hair cleaning products are a kind of cosmetics necessary in daily life, which mainly clean hair and scalp, and also have functions such as smoothing, glossing, moisturizing, and maintaining the appearance. The components of hair cleaning products usually include surfactants, thickeners, conditioning agents, preservatives, and fragrances.

[0003] At present, the surfactants and conditioning agents in commercially available hair cleaning products are all artificially synthesized, such as sulfonates, sulfates, betaines, and silicones. These components have strong cleaning ability and conditioning effect, but also have strong irritation to the scalp. Long-term use often damages the scalp and destroys the microecology on the surface of the scalp, causing dandruff, hair loss, and other problems. At the same time, in recent years, with the continuous improvement of living standards, consumers' safety awareness of pursuing natural, green, and healthy products has been increasing, and washing and caring products containing natural plant ingredients have gradually been favored by more and more people. Compared with chemically synthesized products, washing and caring products with plant extracts as the main active ingredient are safer and have stronger protection for hair and scalp, and are more in line with consumers' demands. However, pure plant extract hair cleaning compositions lack conditioning properties, and the hair after washing is dry and tangled, with poor experience. Therefore, hair cleaning compositions with good washing experience and green naturalness are the inevitable trend of market development.

[0004] In addition, Chinese patent CN 114869813A discloses a pure natural cleaning composition, Chinese patent CN112315869A discloses a pure natural shampoo containing 8 plant ingredients, Chinese patent CN104814895B discloses a natural shampoo mainly containing natural plant active ingredients such as camellia oil, grape seed extract, and soapberry extract, Chinese patent CN108158900A discloses a natural shampoo containing radix rehmanniae preparata and radix polygoni multiflori, Chinese patent CN109512727A discloses a natural shampoo mainly containing plant ingredients such as beeswax and cortex meliae, and Chinese patent CN106937926B discloses a natural shampoo for dandruff relief, itching relief, and hair care, which mainly contains oil tea pomace extract, saxifrage extract, giant knotweed extract, and stonecalm flower extract. From the above patents, it can be seen that most of the current pure natural hair cleaning compositions are too mild in order to be natural, and lack of functionality, and have problems such as weak foaming performance, poor cleaning ability, insufficient conditioning performance, and insufficient antibacterial and preservative performance, which results in poor actual shampooing and dry hair experience, and loss of the basic functions of hair cleaning compositions. SUMMARY

[0005] To address the aforementioned technical problems, this invention provides a plant-derived hair-cleansing composition and its preparation method. The components of this hair-cleansing composition are all of natural origin or modified natural plants, without added chemical preservatives. It produces rich and dense foam, not only cleaning and softening the hair, but also controlling oil, removing dandruff, and improving the scalp barrier, thus offering multiple benefits.

[0006] Specifically, the following technical solutions are included: In a first aspect, a plant-derived hair-cleaning composition is provided, comprising the following components: plant extracts, plant-modified surfactants, plant-modified conditioners, and plant preservatives; wherein the plant extracts are selected from one or more plants of the Theaceae, Sapindaceae, Fabaceae, Rutaceae, and Lauraceae families.

[0007] Preferably, the raw materials used in the plant-derived hair cleaning composition are all derived from plant extracts or modified plants.

[0008] Furthermore, the plant-derived hair care composition comprises the following components by weight percentage: 2.5%-18.5% plant extract, 1-13% plant-modified surfactant, 0.2-2.5% plant-modified conditioner, 0.1-0.3% plant preservative, and 0-0.5% plant essential oil.

[0009] Preferably, the plant-derived hair care composition comprises the following components by weight percentage: 5.1%-18.5% plant extract, 1-13% plant-modified surfactant, 0.2-2.5% plant-modified conditioner, 0.1-0.3% plant preservative, and 0-0.5% plant essential oil.

[0010] Furthermore, the plant extract is selected from one or more of the following: Sapindus mukorossi fruit extract, Camellia japonica seed extract, Gleditsia sinensis extract, Lemon fruit extract, Cinnamomum cassia bark extract, and Soybean seed extract.

[0011] Furthermore, the plant extract comprises Sapindus mukorossi fruit extract, Camellia japonica seed extract, and Gleditsia sinensis extract, wherein the Sapindus mukorossi fruit extract accounts for 2-10% of the weight percentage of the plant-derived hair care composition, the Camellia japonica seed extract accounts for 0.5-6.5% of the weight percentage of the plant-derived hair care composition, and the Gleditsia sinensis extract accounts for 0.1-2% of the weight percentage of the plant-derived hair care composition.

[0012] Furthermore, the plant-modified surfactant is selected from one or more of sodium cocoyl malic acid, potassium cocoyl hydrolyzed oat protein, and sodium cocoyl aminopropionate.

[0013] Furthermore, the plant-modified surfactant is composed of sodium cocoyl malic acid, potassium cocoyl hydrolyzed oat protein, and sodium cocoyl aminopropionate. The sodium cocoyl malic acid accounts for 0.5-5% of the weight of the plant-derived hair care composition, the potassium cocoyl hydrolyzed oat protein accounts for 0.5-5% of the weight of the plant-derived hair care composition, and the sodium cocoyl aminopropionate accounts for 1-3% of the weight of the plant-derived hair care composition.

[0014] Furthermore, the plant-modified conditioner is selected from one or more of guar gum hydroxypropyltrimethylammonium chloride, PEG-50 shea butter resin, and polyquaternium-47.

[0015] Preferably, the plant-modified conditioner is composed of guar hydroxypropyltrimethylammonium chloride, PEG-50 shea butter resin, and polyquaternium-47, wherein the guar hydroxypropyltrimethylammonium chloride accounts for 0.1-0.3% of the weight of the plant-derived hair care composition, the PEG-50 shea butter resin accounts for 0.5-1% of the weight of the plant-derived hair care composition, and the polyquaternium-47 accounts for 0.1-0.2% of the weight of the plant-derived hair care composition.

[0016] Furthermore, the plant preservative is selected from one or more of lemon fruit extract, cinnamon bark extract, soybean seed extract, allicin extract, and clove extract.

[0017] Preferably, the plant preservative is composed of lemon fruit extract, cinnamon bark extract, and soybean seed extract.

[0018] Furthermore, the plant essential oil is selected from one or more of camellia essential oil, licorice oil, citrus essential oil, and sweet orange essential oil.

[0019] Preferably, the plant-derived hair-cleaning composition further includes an adjuvant selected from citric acid and / or lactic acid.

[0020] Preferably, the plant-derived hair-cleansing composition comprises the following components by weight percentage: 5.1%-18.5% plant extract, 1-13% plant-modified surfactant, 0.2-2.5% plant-modified conditioner, 0.1-0.3% plant preservative, 0-0.5% plant essential oil, 0.5-1.2% auxiliaries, and the balance being deionized water.

[0021] In a second aspect, a method for preparing a plant-derived hair-cleaning composition according to the first aspect is provided, comprising the following steps: S1. Disperse a portion of the plant-modified conditioner evenly with deionized water, stir and heat to 80-85℃, keep stirring until the solution is clear and transparent, then begin to cool down; S2. Add the plant-modified surfactant and the remaining plant-modified conditioner in sequence, stirring constantly. When the temperature drops to 40℃, add the plant extract, plant preservative and plant essential oil, stir evenly and then discharge.

[0022] The beneficial effects of this invention are as follows: This invention uses plant extracts as the main ingredients, combined with plant-modified surfactants and plant-modified conditioning agents, to ensure that the hair cleaning composition is gentle and non-irritating while enhancing the cleaning and foaming properties of the composition. It is green and safe, and the composition also inhibits Malassezia and reduces sebum secretion, thus having the functions of dandruff control, oil control, and protection of the scalp barrier.

[0023] The plant-derived hair care composition of the present invention does not contain any chemical preservatives, but uses lemon fruit extract, cinnamon bark extract, soybean seed extract and other plant preservatives as plant preservatives, and has excellent antibacterial and preservative properties.

[0024] This invention, through the rational combination of plant-modified conditioning agents, results in less resistance when combing hair wet or dry compared to existing pure natural or pure plant extract shampoos, providing a very good smoothing effect and a better user experience. Attached Figure Description

[0025] 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.

[0026] Figure 1 The results show the foam performance test results of the plant-derived hair cleaning compositions of Comparative Examples 1, 2, and 1 of this invention. Detailed Implementation

[0027] 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.

[0028] 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.

[0029] 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.

[0030] The terms "preferred," "more preferably," and "more suitable" used in this invention refer to embodiments of the invention that provide certain beneficial effects under certain circumstances. However, other embodiments may also be preferred under the same or other circumstances. Furthermore, the description of one or more preferred embodiments does not imply that other embodiments are unavailable, nor is it intended to exclude other embodiments from the scope of this invention.

[0031] Although the numerical ranges and parameters illustrating the broad scope of the invention are approximate, the values ​​listed in the specific examples are reported as precisely as possible. However, any numerical value inherently contains some error that is necessarily caused by the standard deviation found in their respective test measurements.

[0032] 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.

[0033] The preparation method of the plant-derived hair-cleaning composition in the embodiments and comparative examples of the present invention includes the following steps: S1. Disperse a portion of the plant-modified conditioner evenly with deionized water, stir and heat to 80-85°C, keep stirring until the solution is clear and transparent, and start cooling. S2. Add the plant-modified surfactant and the remaining plant-modified conditioner in sequence, stirring constantly. When the temperature drops to 40°C, add the plant extract, plant preservative, plant essential oil (if any), and auxiliary agent (if any), and stir evenly before discharging.

[0034] Example 1 A plant-derived hair-cleansing composition comprising the following components by weight percentage: Plant extracts 5.1% (Sapindus mukorossi fruit extract 4%; Camellia japonica seed extract 1%; Gleditsia sinensis extract 0.1%). Plant-modified surfactant 7% (sodium cocoyl malic acid 3%; potassium cocoyl hydrolyzed oat protein 3%; sodium cocoyl aminopropionate 1%) Plant-modified conditioner 1.3% (guar gum hydroxypropyltrimethylammonium chloride 0.2%, PEG-50 shea butter resin 1%, polyquaternium-47 0.1%). 0.3% plant preservative (composed of lemon fruit extract, cinnamon bark extract and soybean seed extract). 0.5% plant essential oil (camellia essential oil). Additives 0.54% (lactic acid 0.5%, citric acid 0.04%) The remainder is deionized water.

[0035] The method for preparing the plant-derived hair-cleaning composition of Example 1 includes the following steps: S1. Disperse a portion of the plant-modified conditioner (guar gum hydroxypropyltrimethylammonium chloride) evenly with deionized water, stir and heat to 83°C, keep stirring until the solution is clear and transparent, and then start cooling. S2. Add the plant-modified surfactant and the remaining plant-modified conditioner (cocoyl hydrolyzed oat protein potassium, sodium cocoyl aminopropionate) in sequence, stirring constantly. When the temperature drops to 40°C, add the plant extract, plant preservative, plant essential oil (if any) and auxiliary agent (if any), and stir evenly before discharging.

[0036] The preparation methods of the plant-derived hair-cleaning compositions in Examples 2-8 are the same as those in Example 1.

[0037] Example 2 A plant-derived hair-cleansing composition comprising the following components by weight percentage: Plant extracts 8.5% (6% Sapindus mukorossi fruit extract; 0.5% Camellia japonica seed extract; 2% Gleditsia sinensis extract). Plant-modified surfactant 8% (sodium cocoyl malic acid 3%; potassium cocoyl hydrolyzed oat protein 3%; sodium cocoyl aminopropionate 1%). Plant-modified conditioner 1.3% (guar gum hydroxypropyltrimethylammonium chloride 0.2%; PEG-50 shea butter resin 1%; polyquaternium-47 0.1%) 0.3% plant preservative (composed of lemon fruit extract, cinnamon bark extract and soybean seed extract). 0.5% plant essential oil (camellia plant oil) Additives 1.04% (1% lactic acid, 0.04% citric acid). The remainder is deionized water.

[0038] Example 3 A plant-derived hair-cleansing composition comprising the following components by weight percentage: Plant extracts 7.1% (Sapindus mukorossi fruit extract 2%; Camellia japonica seed extract 5%; Gleditsia sinensis extract 0.1%). Plant-modified surfactant 9% (sodium cocoyl malic acid 3%; potassium cocoyl hydrolyzed oat protein 3%; sodium cocoyl aminopropionate 3%). Plant-modified conditioner 1.0% (guar gum hydroxypropyltrimethylammonium chloride 0.3%; PEG-50 shea butter resin 0.5%; polyquaternium-47 0.2%) 0.1% plant preservative (composed of lemon fruit extract, cinnamon bark extract and soybean seed extract). 0.5% plant essential oil (camellia essential oil). Additives 0.54% (lactic acid 0.5%, citric acid 0.04%) The remainder is deionized water.

[0039] Example 4 A plant-derived hair-cleansing composition comprising the following components by weight percentage: 7% plant extracts (4% Sapindus mukorossi fruit extract; 1% Camellia japonica seed extract; 2% Gleditsia sinensis extract). Plant-modified surfactant 6% (sodium cocoyl malic acid 2%; potassium cocoyl hydrolyzed oat protein 3%; sodium cocoyl aminopropionate 1%) Plant-modified conditioner 1.5% (guar gum hydroxypropyltrimethylammonium chloride 0.3%; PEG-50 shea butter resin 1%; polyquaternium-47 0.2%) 0.3% plant preservative (composed of lemon fruit extract, cinnamon bark extract and soybean seed extract). 0.5% plant essential oil (camellia essential oil). Additives 0.54% (lactic acid 0.5%, citric acid 0.04%) The remainder is deionized water.

[0040] Example 5 A plant-derived hair-cleansing composition comprising the following components by weight percentage: Plant extracts 10.5% (7% Sapindus mukorossi fruit extract; 3% Camellia japonica seed extract; 0.5% Gleditsia sinensis extract). Plant-modified surfactant 5% (sodium cocoyl apple amino acid 2%; potassium cocoyl hydrolyzed oat protein 2%; sodium cocoyl aminopropionate 1%) Plant-modified conditioner 1.2% (guar gum hydroxypropyltrimethylammonium chloride 0.1%; PEG-50 shea butter resin 1%; polyquaternium-47 0.1%) 0.2% plant preservative (composed of lemon fruit extract, cinnamon bark extract and soybean seed extract). 0.5% plant essential oil (camellia essential oil). Additives 0.54% (lactic acid 0.5%, citric acid 0.04%) The remainder is deionized water.

[0041] Example 6 A plant-derived hair-cleansing composition comprising the following components by weight percentage: Plant extracts 18.5% (Sapindus mukorossi fruit extract 10%; Camellia japonica seed extract 6.5%; Gleditsia sinensis extract 2%). Plant-modified surfactant 2% (sodium cocoyl malic acid 0.5%; potassium cocoyl hydrolyzed oat protein 0.5%; sodium cocoyl aminopropionate 1%) Plant-modified conditioner 1.2% (guar gum hydroxypropyltrimethylammonium chloride 0.1%; PEG-50 shea butter resin 1%; polyquaternium-47 0.1%) 0.2% plant preservative (composed of lemon fruit extract, cinnamon bark extract and soybean seed extract). 0.5% plant essential oil (camellia essential oil). Additives 0.54% (lactic acid 0.5%, citric acid 0.04%) The remainder is deionized water.

[0042] Example 7 A plant-derived hair-cleansing composition comprising the following components by weight percentage: Plant extracts 5.1% (Sapindus mukorossi fruit extract 4%; Camellia japonica seed extract 1%; Gleditsia sinensis extract 0.1%). Plant-modified surfactant 8% (sodium cocoyl apple amino acid 5%; potassium cocoyl hydrolyzed oat protein 2%; sodium cocoyl aminopropionate 1%) Plant-modified conditioner 1.3% (guar gum hydroxypropyltrimethylammonium chloride 0.2%; PEG-50 shea butter resin 1%; polyquaternium-47 0.1%) 0.1% plant preservative (composed of lemon fruit extract, cinnamon bark extract and soybean seed extract). 0.5% plant essential oil (camellia essential oil). Additives 1.04% (1% lactic acid, 0.04% citric acid). The remainder is deionized water.

[0043] Example 8 A plant-derived hair-cleansing composition comprising the following components by weight percentage: Plant extracts 5.1% (Sapindus mukorossi fruit extract 4%; Camellia japonica seed extract 1%; Gleditsia sinensis extract 0.1%). Plant-modified surfactant 9% (sodium cocoyl malic acid 3%; potassium cocoyl hydrolyzed oat protein 5%; sodium cocoyl aminopropionate 1%) Plant-modified conditioner 1.2% (guar gum hydroxypropyltrimethylammonium chloride 0.1%; PEG-50 shea butter resin 1%; polyquaternium-47 0.1%) 0.1% plant preservative (composed of lemon fruit extract, cinnamon bark extract and soybean seed extract). 0.5% plant essential oil (camellia essential oil). Additives 0.54% (lactic acid 0.5%, citric acid 0.04%) The remainder is deionized water.

[0044] The raw material components (weight percentage, %) of the plant-derived hair-cleaning compositions of Examples 1-8 are shown in Table 1 below: Table 1. Raw material components (weight percentage, %) of plant-derived hair-cleaning compositions in Examples 1-8 The plant-derived hair-cleaning compositions of Comparative Examples 1 and 2 were prepared according to the raw material components listed in Table 2 below. The preparation methods of the plant-derived hair-cleaning compositions of Comparative Examples 1 and 2 were the same as those in Example 1.

[0045] Table 2 Raw material components (weight percentage, %) of plant-derived hair cleaning compositions of Comparative Examples 1-2 Efficacy test: The plant-derived hair-cleansing compositions of the present invention and the comparative examples are both used as shampoos.

[0046] 1. Foam performance test: The foam volume of the shampoos prepared in each embodiment and comparative example was tested using a foam tester after 5 minutes of foaming and defoaming.

[0047] The foaming performance test results of the plant-derived hair-cleaning compositions of Examples 1-8 and Comparative Examples 1-2 are shown in Table 3: Table 3. Foam performance test results of Examples 1-8 and Comparative Examples 1-2 Figure 1 This presents a comparative test result of the foaming performance of the plant-derived hair-cleaning compositions of Comparative Examples 1, 2, and 1 of this invention.Figure 1 As shown in Table 3, the plant-derived shampoos and conditioners in Comparative Examples 1 and 2, without the addition of plant-modified surfactants, exhibited significantly reduced foam volume and rapid defoaming, with the pumped foam becoming flat and easily defoaming. In contrast, the embodiments obtained according to the formulations described in this invention showed significantly improved foam volume and foam stability, with more and firmer pumped foam (Example 1). This demonstrates that the plant-modified surfactants used in the proportional formulation of this invention play a crucial role in the foam richness of the shampoo.

[0048] 2. Sebum Cleansing Power Test The sebum-removing ability of each example and the control group (commercially available silicone-free shampoo) was tested according to the stain removal test method in GB / T 13174-2021 Standard for Testing the Stain Removal Ability of Laundry Detergents. The soiled cloth used was a JB-03 artificially simulated sebum-stained cloth, and the shampoo concentration was 5% (mass concentration). The difference in whiteness of the test samples was used as the standard for measuring the sebum-removing power of the shampoo.

[0049] The larger the whiteness difference value of the test sample, the stronger the shampoo's ability to remove sebum.

[0050] The sebum-cleansing power test results of the plant-derived hair-cleansing compositions of Examples 1-8 are shown in Table 4: Table 4. Sebum-cleansing power test results of the plant-derived hair-cleansing compositions of Examples 1-8 As can be seen from the test results in Table 4, the sebum removal capabilities of the various embodiments obtained according to the formulation of the present invention are not significantly different from those of commercially available shampoos, indicating that the formula has a better ability to clean oil.

[0051] 3. Review performance tests Wet combing test: Select untested damaged hair strands and apply 0.2g of 12% K12 aqueous solution per gram of hair strand evenly to the surface of the hair strand for 1 minute, rinse for 1 minute, and then let it air dry at room temperature for 4 hours until dry. After the hair strands are prepared, apply shampoo prepared in each example and comparative example evenly to the surface of the hair strand for 1 minute, let it stand for 1 minute, rinse for 1 minute, comb it three times to remove excess water, and then measure the wet combing force using a hair combing instrument.

[0052] Dry combing test: After the wet combing test, the hair strands of each experimental group were left to air dry at room temperature for 4 hours until they were dry. After the hair strands were dry, the dry combing force was measured using a hair combing instrument.

[0053] The lower the combing resistance value, the smoother the hair feels and the better the combing effect.

[0054] The hair-cleaning properties of the plant-derived hair-cleaning compositions from Examples 1-8 and Comparative Example 2 were tested, and the test results are shown in Table 5. Table 5. Sebum-cleansing power test results of plant-derived hair-cleansing compositions of Examples 1-8 and Comparative Example 2 As shown in Table 5, the plant-derived hair-cleansing compositions of Examples 1-8, prepared according to the formulations described in this invention, exhibit better wet and dry combing performance compared to commercially available shampoos. In contrast, the plant-derived hair-cleansing composition of Comparative Example 2, without the addition of plant-modified surfactants, showed significantly increased friction during both wet and dry combing, and a significant decrease in conditioning performance. This indicates that plant-modified surfactants are crucial to the conditioning performance of shampoos.

[0055] 4. Corrosion resistance test Preservative challenge tests were conducted on each example according to the total bacterial count detection method in Chapter 5.2 of the 2015 edition of the "Cosmetic Safety Technical Specifications" and the mold and yeast detection methods in Chapter 5.6 of the 2015 edition of the "Cosmetic Safety Technical Specifications". The test data results are shown in Tables 6 and 7 below: The fungal preservative test results of the plant-derived hair cleaning compositions of Examples 1-8 are shown in Table 6: Table 6. Fungal preservation test results of Examples 1-8 The bacterial preservative test results of the plant-derived hair cleaning compositions of Examples 1-8 are shown in Table 7: Table 7 Results of bacterial preservation tests in Examples 1-8 As can be seen from the test results in Tables 6 and 7, the plant-derived hair cleaning compositions of Examples 1-8 obtained according to the formulations described in this invention all have excellent antibacterial properties.

[0056] 5. Anti-dandruff performance test (Malassezia inhibition test): The plant-derived hair-cleaning compositions from Examples 1-8 were selected for Malassezia inhibition testing. The test method is as follows: 1) Test strain: ATCC44344 Malassezia furfur 2) Culture medium: Peptone 5.0g, Yeast extract 3.0g; Malt extract 3.0g, Glucose 10.0g; Olive oil 10.0g, Agar 20.0g; Distilled water 1.0L; Adjust the pH to 6.0; 3) Test method: Refer to Appendix C5 of GB / T 15979 for the test method of antibacterial performance of non-dissolving antibacterial (inhibitory) products.

[0057] 4) Test concentration: 50% solution by mass.

[0058] 5) Action time: 5 minutes.

[0059] The results of the Malassezia inhibition test of the plant-derived hair-cleaning compositions of Examples 1-8 are shown in Table 8: Table 8. Results of Malassezia inhibition tests in Examples 1-8 As can be seen from the test results in Table 8, the plant-derived hair-cleaning compositions of each embodiment obtained according to the formulation described in this invention have a very good effect in inhibiting the growth of Malassezia.

[0060] 6. Usage effect test Ten subjects (8 males and 2 females) were randomly selected to test Examples 1, 2, and 3, as well as a commercially available shampoo. Each formula was used for at least one week, and then the various performance characteristics of the shampoos were rated. 1 point was "strongly disagree," 2 points was "disagree," 3 points was "neutral," 4 points was "agree," and 5 points was "strongly agree." The results were averaged. The test results are shown in Table 9. Table 9. Test results of the effects of commercially available shampoos in Examples 1-3. The results show that the plant-derived hair cleaning compositions of Examples 1-3 obtained according to the formulation of the present invention have almost the same foaming performance and conditioning performance when dry and wet combing as commercially available shampoos; they are slightly lower than commercially available shampoos in terms of ease of rinsing and cleanliness, while being much gentler than commercially available shampoos.

[0061] 7. Human efficacy testing Fifty adult volunteers (scalp oil content greater than 400) were randomly recruited and used the product of Example 1 continuously for 28 days under normal conditions. The scalp moisture content, transepidermal water loss rate, and scalp oil content of the volunteers before and after use were tested.

[0062] Test methods: T / GDCA 054-2025 "Evaluation method for the scalp oil control efficacy of hair products" and "Liu Weiyi, Zhou Lin, Zhao Hua. Evaluation of cosmetic efficacy (XIII) - Consumer use test".

[0063] Testing instruments: Meibometer MB560 scalp oil meter, TMNano ultra-small skin moisture loss test probe, Moisture with Pin scalp meter.

[0064] Test conditions: Temperature: (21±1)℃; Relative humidity: (50±10)%.

[0065] The test results are shown in Tables 10-12: Table 10. Scalp moisture content test results of Example 1 Table 11 Results of transepidermal water loss rate test of scalp in Example 1 Table 12 Results of scalp oil content test in Example 1 As can be seen from the test results in Tables 10-12, Example 1 obtained by the formulation described in this invention can significantly reduce the transepidermal water loss rate and scalp oil content after 28 days of continuous use, indicating that Example 1 is mild to use, can improve the scalp barrier function, and has an oil-controlling effect.

[0066] In summary, this invention provides a plant-derived hair-cleansing composition and its preparation method. This composition exhibits excellent cleaning and foaming properties, producing a rich and dense lather. Compared to common commercially available shampoos, this invention offers less resistance when combing wet or dry, resulting in superior combing performance and a better user experience. It also provides multiple benefits such as scalp care, improved scalp barrier, oil control, and dandruff removal, while remaining gentle and non-irritating. This invention does not contain any chemical preservatives, using a combination of lemon fruit extract, cinnamon bark extract, and soybean seed extract as plant-based preservatives, demonstrating excellent antibacterial and preservative properties.

[0067] 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 plant-derived hair-cleansing composition, characterized in that, It comprises the following components: plant extracts, plant-modified surfactants, plant-modified conditioners, and plant preservatives; wherein the plant extracts are selected from one or more plants of the Theaceae, Sapindaceae, Fabaceae, Rutaceae, and Lauraceae families.

2. The plant-derived hair-cleansing composition according to claim 1, characterized in that, It includes the following components by weight percentage: plant extracts 2.5%-18.5%, plant-modified surfactants 1-13%, plant-modified conditioners 0.2-2.5%, plant preservatives 0.1-0.3%, and plant essential oils 0-0.5%.

3. The plant-derived hair-cleansing composition according to claim 1, characterized in that, The plant extracts mentioned are selected from one or more of the following: Sapindus mukorossi fruit extract, Camellia japonica seed extract, Gleditsia sinensis extract, Lemon fruit extract, Cinnamomum cassia bark extract, and Soybean seed extract.

4. The plant-derived hair-cleansing composition according to claim 3, characterized in that, The plant extract comprises Sapindus mukorossi fruit extract, Camellia japonica seed extract, and Gleditsia sinensis extract. The Sapindus mukorossi fruit extract accounts for 2-10% of the weight of the plant-derived hair care composition, the Camellia japonica seed extract accounts for 0.5-6.5% of the weight of the plant-derived hair care composition, and the Gleditsia sinensis extract accounts for 0.1-2% of the weight of the plant-derived hair care composition.

5. The plant-derived hair-cleansing composition according to claim 1, characterized in that, The plant-modified surfactant is selected from one or more of sodium cocoyl apple amino acid, potassium cocoyl hydrolyzed oat protein, and sodium cocoyl aminopropionate.

6. The plant-derived hair-cleansing composition according to claim 5, characterized in that, The plant-modified surfactant is composed of sodium cocoyl malic acid, potassium cocoyl hydrolyzed oat protein, and sodium cocoyl aminopropionate. The sodium cocoyl malic acid accounts for 0.5-5% of the weight of the plant-derived hair care composition, the potassium cocoyl hydrolyzed oat protein accounts for 0.5-5% of the weight of the plant-derived hair care composition, and the sodium cocoyl aminopropionate accounts for 1-3% of the weight of the plant-derived hair care composition.

7. The plant-derived hair-cleansing composition according to claim 1, characterized in that, The plant-modified conditioner is selected from one or more of guar gum hydroxypropyltrimethylammonium chloride, PEG-50 tallow resin, and polyquaternium-47.

8. The plant-derived hair-cleansing composition according to claim 1, characterized in that, The plant preservative is selected from one or more of lemon fruit extract, cinnamon bark extract, soybean seed extract, allicin extract, and clove extract.

9. The plant-derived hair-cleansing composition according to claim 2, characterized in that, The plant essential oils mentioned are selected from one or more of camellia essential oil, licorice oil, citrus essential oil, and sweet orange essential oil.

10. A method for preparing a plant-derived hair-cleansing composition according to any one of claims 2-9, characterized in that, Includes the following steps: S1. Disperse a portion of the plant-modified conditioner evenly with deionized water, stir and heat to 80-85℃, keep stirring until the solution is clear and transparent, then begin to cool down; S2. Add the plant-modified surfactant and the remaining plant-modified conditioner in sequence, stirring constantly. When the temperature drops to 40℃, add the plant extract, plant preservative and plant essential oil, stir evenly and then discharge.

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