Scalp care composition containing willow herb extract and preparation method of scalp care composition

Abstract

The invention belongs to the field of daily chemicals. The scalp care composition comprises the following components in percentage by weight: 0.3-0.7% of the willow herb extract, 0.3-0.7% of a preservative, 0.3-0.7% of a preservative and the balance of water. 0.3%-0.8% of a rheum palmatum root extract; 0.5% to 1.5% of capryloyl glycine; 0.1% to 0.5% of dipotassium glycyrrhizinate; 0.5%-1% of a skin conditioner; 5%-7% of ethanol; 0.5%-5% of a polyol; 0.05%-0.2% of a freshener; 0.2%-0.5% of a solubilizing emulsifier; 0.05%-0.2% of an odorant; 0.1%-1% of a preservative; 0.01%-0.5% of a pH regulator; and the balance of pure water. According to the composition, the willow herb extract and the rheum palmatum root extract are reasonably compounded, irritation of the composition is reduced, meanwhile, the willow herb extract and the rheum palmatum root extract can achieve synergistic interaction, the scalp anti-aging and oil control performance of the composition is effectively improved, and scalp health is better protected.

Description

Technical Field

[0001] The invention belongs to the field of daily chemicals, and particularly relates to a scalp care composition containing an angustifolia extract and a preparation method thereof. Background Art

[0002] In recent years, the domestic scalp care industry has shown rapid growth. Domestic consumers' demand for shampoo and care products extends beyond basic cleansing performance to include more advanced ingredients and efficacy. Among the many functionalities of shampoo products, maintaining a healthy scalp is a key research area for shampoo and care products.

[0003] In daily life, the scalp is constantly exposed to UV radiation and air pollutants, making it prone to peroxidation reactions. This accelerates the death of scalp cells, leading to dry and flaky scalp, increased dandruff, and hair loss. This abnormal scalp condition increases sebaceous gland secretion, causing oil accumulation on the scalp. This in turn triggers scalp microbial imbalances, stimulating scalp microbes like Malassezia to secrete irritants, resulting in oily, itchy, and red scalp conditions. Therefore, people often use shampoo and care products to protect their scalp.

[0004] At present, most shampoo and hair care products on the market are chemically synthesized or compound preparations. For example, the components of traditional hair care solutions include cationic polymers, silicone oils and highly cationic surfactants. After long-term use, these substances may be deposited on the scalp, irritating the scalp, causing itching, and even increasing dandruff. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a scalp care composition containing an epilobium extract. By rationally compounding the epilobium extract and the Rheum palmatum root extract, the composition of the present application has excellent anti-dandruff ability, oil control ability and anti-aging properties, can enhance the scalp barrier function, and protect the health of the scalp.

[0006] The technical solutions adopted by the present invention to solve the above problems are as follows:

[0007] A scalp care composition containing an epilobium extract comprises the following components calculated by weight: 0.3% to 0.7% of an epilobium extract; 0.3% to 0.8% of a rheum palmatum root extract; 0.5% to 1.5% of capryloyl glycine; 0.1% to 0.5% of dipotassium glycyrrhizate; 0.5% to 1% of a skin conditioner; 5% to 7% of ethanol; 0.5% to 5% of a polyol; 0.05% to 0.2% of a cooling agent; 0.2% to 0.5% of a solubilizing emulsifier; 0.05% to 0.2% of a fragrance; 0.1% to 1% of a preservative; 0.01% to 0.5% of a pH regulator; and the balance being pure water.

[0008] Through the above technical solution, the composition system architecture is rationally constructed and key raw material parameters are restricted, allowing the active ingredients in the system, such as the Epilobium angustifolium extract and the Rheum palmatum root extract, to cooperate with each other, effectively cleansing the scalp and improving the moisturizing properties of the composition. It also maintains an intact scalp lipid barrier, enhancing anti-aging, anti-inflammatory, and scalp protection capabilities. The ethanol in the composition of this application is used as a solvent. Adding an amount of 5% to 7% can increase the stability of the composition of this application and enhance the cooling sensation and quick-drying properties of the scalp after use.

[0009] Furthermore, the preparation method of the Epilobium angustifolium extract comprises the following steps:

[0010] S1. The washed, ground, and dried whole herb of Epilobium angustifolium is crushed;

[0011] S2. The crushed Angustifolia powder was placed in a reactor, distilled water was added and mixed evenly, and the mixed solution was added to a high-pressure cell disruptor for intermittent disruption until more than 90% of the cells were disrupted;

[0012] S3. The solution obtained in step S2 is subjected to ultrasonic oscillation extraction;

[0013] S4. The solution obtained in step S3 is placed in a centrifuge and centrifuged, and the supernatant is taken after centrifugation;

[0014] S5. The supernatant was concentrated by vacuum evaporation to 5% of the original volume to obtain a concentrate;

[0015] S6. The concentrated solution is vacuum extracted and filtered using a microporous filter membrane to obtain an angustifolia extract.

[0016] Furthermore, the grinding speed is 600-1200 rpm, and the grinding time is 40 min.

[0017] Furthermore, the drying temperature is 55-65° C., and the drying time is 8-10 hours.

[0018] Furthermore, the pulverization process is carried out using a grinding mill; the power of the grinding mill is 1.3KW and the rotation speed is 2850 rpm.

[0019] Furthermore, the mesh size of the angustifolia powder after the pulverization process is 20 to 60 meshes.

[0020] Furthermore, the mixing mass ratio of the angustifolia powder to distilled water is 1:14.

[0021] Furthermore, the power of the high-pressure cell disruptor is 100-200W, and the pressure is 1000-3000psi.

[0022] Furthermore, the intermittent crushing process is to crush for 1 minute, rest for 1 minute, and then crush for 1 minute, and repeat this 30 times.

[0023] Furthermore, after the intermittent disruption treatment, the cells are disrupted to 0.8 to 1.2 μm.

[0024] Furthermore, the ultrasonic oscillation extraction has a power of 50 KHz, a temperature of 30° C., and a time of 30 to 40 minutes.

[0025] Furthermore, the rotation speed of the centrifuge is 12000 r / min, and the centrifugation time is 10 to 20 minutes.

[0026] Furthermore, the vacuum degree of the vacuum evaporation concentration is 0.05-0.1 MPa and the temperature is 50-60°C.

[0027] Furthermore, the pore size of the microporous filter membrane is 0.22 μm.

[0028] Furthermore, the vacuum degree of the vacuum extraction filtration is 0.1-0.6 MPa, the temperature is 45-55° C., and the flow rate is 0.05-0.3 T / H.

[0029] Through the above technical solution, the fireweed cells can be broken, the cell endoplasm can be released, the effective active ingredients in the fireweed can be reasonably extracted, and the effective ingredients such as flavonoids and amino acids in the fireweed can be effectively protected, thereby improving the actual efficacy of the fireweed extract.

[0030] Furthermore, the skin conditioning agent includes one or more of betaine, sodium PCA, niacinamide, vitamin B6, and tocopheryl acetate.

[0031] The above technical solution can increase the moisturizing ability of the composition of the present application, and play a moisturizing and nourishing role on the scalp.

[0032] Furthermore, the polyol includes one or more of propylene glycol, 1,3-propanediol, butylene glycol, and glycerol.

[0033] Furthermore, the cooling agent includes one or more of menthol, menthol lactate, and encapsulated menthol lactate.

[0034] Through the above technical solution, the cooling agent can cool and relieve itching, shrink pores and inhibit the reproduction of microorganisms, thereby reducing the risk of scalp infection.

[0035] Furthermore, the solubilizing emulsifier includes one or more of PEG-40 hydrogenated castor oil and PPG-26-butanediol polyether-26.

[0036] Furthermore, the preservative includes one or more of phenoxyethanol, sodium benzoate, chlorphenesin, benzyl alcohol, and ethylhexylglycerin.

[0037] A method for preparing a scalp care composition containing an angustifolia extract comprises the following steps:

[0038] A1. Dissolve capryloylglycine in hot water above 60°C and adjust the pH to 5.0-6.0 with sodium hydroxide.

[0039] A2. Add the polyol to the solution obtained in step A1 and stir evenly;

[0040] A3. After the solution obtained in step A2 is cooled to room temperature, ethanol is added and stirred;

[0041] A4. The skin conditioning agent and dipotassium glycyrrhizate were dispersed and dissolved in pure water and then added to the solution obtained in step A3;

[0042] A5. After the extract of Epilobium angustifolium and Rhubarb palmatum extract was completely dissolved in pure water, the solution obtained was added to A4 and stirred evenly;

[0043] A6. After the solubilizing emulsifier, cooling agent, preservative and flavoring agent are mixed and fully dissolved, the solution obtained by A5 is added while stirring and stirred;

[0044] A7. Re-test the pH value and adjust the pH value to 5.0-6.0;

[0045] A8. The sample obtained in A7 was aged at low temperature and then filtered to obtain a scalp care composition containing an herbaceous leaf extract.

[0046] Furthermore, the low-temperature aging temperature is 3 to 5° C., and the aging time is 12 to 24 hours.

[0047] Furthermore, the filtration uses a filter cloth with a mesh size of 200 to 300 meshes.

[0048] The present invention has the following beneficial effects:

[0049] 1. By rationally combining an herbaceous herb extract and an extract from Rheum palmatum root, along with other ingredients in the composition and limiting key parameters of the ingredients, this application significantly reduces the irritation of the composition. Furthermore, the herbaceous herb extract and the Rheum palmatum root extract synergize to effectively enhance the scalp anti-aging and oil-control properties of the composition. The composition exhibits excellent stability at low temperatures, reducing the possibility of active substance precipitation, thereby ensuring its effectiveness and better protecting scalp health.

[0050] 2. Through the extraction process of the present application, the active ingredients in the fireweed can be reasonably extracted, and the active ingredients such as flavonoids and amino acids contained in the fireweed can be protected, thereby increasing the content of effective ingredients in the fireweed extract and improving the actual efficacy of the fireweed extract. DETAILED DESCRIPTION

[0051] To make the technical problems, technical solutions, and technical advantages of the present invention more clear, the following will be described in detail with reference to specific examples. However, the scope of protection of the present invention is not limited to the following specific embodiments. The embodiments described are only part of the embodiments of the present invention, not all of the embodiments, and are not limitations of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0052] Unless otherwise defined, all technical terms used hereinafter have the same meanings as those generally understood by those skilled in the art. The technical terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the scope of protection of the present invention.

[0053] Unless otherwise specified, various raw materials, reagents, instruments and equipment used in the present invention can be purchased from the market or prepared by existing methods.

[0054] The quantitative tests in the following examples were all performed in triplicate, and the data are the average values or the average values ± standard deviations of the three repeated experiments.

[0055] In a preferred embodiment of the present application, the preparation method of the Epilobium angustifolium extract comprises the following steps:

[0056] S1. The whole herb of Epilobium was washed, ground and dried at a grinding speed of 600 to 1200 rpm for 40 min, a drying temperature of 55 to 65 ° C, and a drying time of 8 to 10 h. The whole herb of Epilobium was pulverized using a mill with a power of 1.3 kW and a speed of 2850 rpm. The mesh size of the resulting Epilobium powder was 20 to 60 mesh. The pulverized Epilobium powder was placed in a reactor.

[0057] S2. Add distilled water to the angustifolia powder and mix thoroughly. The mass ratio of angustifolia powder to distilled water is 1:14. The resulting mixture is then added to a high-pressure cell disruptor at a power of 100-200 W and a pressure of 1000-3000 psi. Intermittent cell disruption is performed, with the cell disruption cycle lasting 1 minute, followed by a 1-minute pause, and then 1 minute again. This cycle is repeated 30 times until the cells are broken to a size of 0.8-1.2 μm. The solution is then observed under a microscope until at least 90% of the cells are disrupted.

[0058] S3. The solution obtained in step S2 was subjected to ultrasonic oscillation extraction, the ultrasonic oscillation extraction power was 50KHz, the temperature was 30 ℃, and the time was 30 to 40min;

[0059] S4. The solution obtained in step S3 was placed in a centrifuge and centrifuged at a speed of 12000 r / min for 10 to 20 min. After centrifugation, the supernatant was taken;

[0060] S5. The supernatant was concentrated by vacuum evaporation. The vacuum degree of vacuum evaporation was 0.05 to 0.1 MPa, and the temperature of vacuum evaporation was 50 to 60 ° C. The supernatant was concentrated to 5% of the original volume to obtain a concentrate.

[0061] S6. The concentrate was vacuum extracted and filtered using a microporous filter membrane with a pore size of 0.22 μm. The vacuum degree of the vacuum extraction and filtration was adjusted to 0.1-0.6 MPa, the temperature was 45-55° C., and the flow rate was 0.05-0.3 T / H. After filtration, the herbaceous willow extract was obtained.

[0062] The preparation method of the scalp care composition containing an herbaceous angustifolia extract of the present application comprises the following steps:

[0063] A1. Dissolve capryloyl glycine in hot water at a weight ratio of 20% or more at 60°C and adjust the pH to 5.0 to 6.0 with sodium hydroxide;

[0064] A2. Add the polyol to the solution obtained in step A1 and stir evenly;

[0065] A3. After the solution obtained in step A2 is cooled to room temperature, ethanol is added and stirred;

[0066] A4. The skin conditioner and dipotassium glycyrrhizate were completely dissolved in 10 times the mass of dipotassium glycyrrhizate in pure water and added to the solution obtained in step A3;

[0067] A5. After the extract of Epilobium angustifolium and Rhubarb palmatum extract was completely dissolved with 10 times the mass of pure water, the resulting solution was added to A4 and stirred evenly;

[0068] A6. After the solubilizing emulsifier, cooling agent, preservative and flavoring agent are mixed and fully dissolved, the solution obtained by A5 is added while stirring and stirred;

[0069] A7. Re-test the pH value and adjust the pH value to 5.0-6.0;

[0070] A8. The sample obtained in A7 was aged at 3 to 5°C for 12 to 24 hours and filtered using a 200 to 300 mesh filter cloth to obtain a scalp care composition containing an herbaceous leaf extract.

[0071] Examples 1 to 3 and Comparative Examples 1 to 5 respectively provide a scalp care composition. The specific components and contents are shown in Table 1 below. The Rheum palmatum root extract is a commercially available product, and the unit is weight percentage.

[0072] Table 1

[0073]

[0074]

[0075] Specifically, the preparation method of the Epilobium angustifolium extract of the above embodiment and comparative example comprises the following steps:

[0076] S1. The whole herb of Epilobium was washed, ground, and dried at a grinding speed of 900 rpm for 40 min, a drying temperature of 60 ° C, and a drying time of 9 h. The whole herb of Epilobium was pulverized using a mill with a power of 1.3 kW and a speed of 2850 rpm. The mesh size of the resulting Epilobium powder was 20 to 60 mesh. The pulverized Epilobium powder was placed in a reactor.

[0077] S2. Add distilled water to the angustifolia powder and mix thoroughly. The mass ratio of angustifolia powder to distilled water is 1:14. The resulting mixture is then added to a high-pressure cell disruptor at 150 W and 2000 psi. Intermittent cell disruption is performed, with the cells disrupted for 1 minute, followed by a 1-minute pause, and then for another 1-minute, repeating 30 times until the cells are broken to a size of 0.8 to 1.2 μm. The solution is then observed under a microscope until at least 90% of the cells are disrupted.

[0078] S3. The solution obtained in step S2 was subjected to ultrasonic oscillation extraction, the ultrasonic oscillation extraction power was 50KHz, the temperature was 30 ℃, and the time was 35min;

[0079] S4. The solution obtained in step S3 was placed in a centrifuge and centrifuged at a speed of 12000 r / min for 15 min. After centrifugation, the supernatant was taken;

[0080] S5. The supernatant was concentrated by vacuum evaporation. The vacuum degree of vacuum evaporation was 0.08MPa, the vacuum evaporation temperature was 55°C, and the supernatant was concentrated to 5% of the original volume to obtain a concentrate;

[0081] S6. The concentrate was vacuum extracted and filtered using a microporous filter membrane with a pore size of 0.22 μm. The vacuum degree of the vacuum extraction and filtration was adjusted to 0.4 MPa, the temperature was 50°C, and the flow rate was 0.2 T / H. After filtration, the angustifolia extract was obtained.

[0082] The finished product yield of the epilobium extract obtained by the above extraction process is 66.3%.

[0083] The preparation method of the scalp care composition of the above embodiment comprises the following steps:

[0084] A1. Dissolve capryloyl glycine in hot water at a weight ratio of 20% or more at 60°C and adjust the pH to 5.0 to 6.0 with sodium hydroxide;

[0085] A2. Add propylene glycol to the solution obtained in step A1 and stir evenly;

[0086] A3. After the solution obtained in step A2 is cooled to room temperature, ethanol is added and stirred;

[0087] A4 betaine and dipotassium glycyrrhizate with 10 times the mass of dipotassium glycyrrhizate dispersed in pure water completely dissolved, added to the solution obtained in step A3;

[0088] A5. After the extract of Epilobium angustifolium and Rhubarb palmatum extract was completely dissolved with 10 times the mass of pure water, the resulting solution was added to A4 and stirred evenly;

[0089] A6 PEG-40 hydrogenated castor oil, menthol, preservatives and flavoring agents were mixed and fully dissolved, and then added to the resulting solution of A5 while stirring, and stirred evenly;

[0090] A7. Re-test the pH value and adjust the pH value to 5.0-6.0;

[0091] A8. The sample obtained in A7 was aged at 4°C for 18 h and filtered using a 200-300 mesh filter cloth to obtain a scalp care composition containing an herbaceous willow extract.

[0092] The preparation method of the scalp care composition of the comparative example can be obtained in the same way.

[0093] The above examples and comparative examples were subjected to instrument efficacy evaluation and human sensory evaluation.

[0094] Evaluation Methodology:

[0095] 1. Chicken embryo irritation test

[0096] The examples and comparative examples were subjected to a chicken embryo irritation test.

[0097] The chicken embryo stimulation scoring method is: the test is conducted using the reaction time method, and the stimulation score (IS) is calculated, and the result is rounded to two decimal places:

[0098] IS=(301-secH)×5÷300+(301-secL)×7÷300+(301-secC)×9÷300

[0099] Wherein: secH (hemorrhage time): the average time from the onset of bleeding observed on the CAM membrane, in seconds (s); secL (vessellysis time): the average time from the onset of vascular lysis observed on the CAM membrane, in seconds (s); secC (coagulation time): the average time from the onset of coagulation observed on the CAM membrane, in seconds (s).

[0100] The basis for judging the chicken embryo irritation test is to evaluate the acute irritation of the chicken embryo's vascular response on the 8th to 10th day of incubation. The score level is shown in Table 2. The evaluation of the stimulation scoring method results is shown in Table 3.

[0101] Table 2

[0102] Vascular response Irritation score No bleeding / coagulation / vascular melting 0 points Mild bleeding / coagulation / vascular melting 1 point Moderate bleeding / coagulation / vascular thrombosis 2 points Severe bleeding / coagulation / vascular thrombosis 3 points

[0103] Table 3

[0104] Stimulus score Irritation classification IS<1 Non-irritating 1≤IS<5 Mild irritation 5≤IS<10 Moderate irritation IS≥10 Strong irritant / corrosive

[0105] The test results of the embodiments and comparative examples are shown in Table 4.

[0106] Table 4

[0107]

[0108]

[0109] By comparing the test results of Example 2 and Comparative Example 4, it can be found that the addition of Angustifolia extract and Rheum palmatum root extract can significantly reduce the chicken embryo irritation score, indicating that the addition of Angustifolia extract and Rheum palmatum root extract can reduce the irritation of the composition of the present application, improve the mildness and safety, reduce irritation to the scalp, and make the composition of the present application suitable for sensitive scalp.

[0110] By comparing the test results of Example 2 and Comparative Examples 2 to 3, it can be seen that compared with adding either the epilobium extract or the Rheum palmatum root extract alone, adding both the epilobium extract and the Rheum palmatum root extract can jointly reduce the irritation of the composition of the present application, indicating that the epilobium extract and the Rheum palmatum root extract have a synergistic effect.

[0111] 2. Stability test

[0112] The embodiment and the comparative example were placed under different temperature conditions for 1 month to detect whether crystals were precipitated. The test results are shown in Table 5.

[0113] Table 5

[0114]

[0115]

[0116] By comparing the test results of Examples 1 to 3 with those of Comparative Example 1, it can be seen that the composition system of the present application with the addition of Angustifolia extract and Rheum palmatum root extract can remain stable when the environment changes, has good stability and compatibility, and can improve the effectiveness of the composition of the present application.

[0117] Comparison of the test results of Example 2 with Comparative Examples 2-4 demonstrates that the angustifolia extract and Rheum palmatum root extract of the present application can enhance the stability of the present composition and reduce the precipitation of active ingredients. During use, the active ingredients can act on the scalp along with the formulation, thereby protecting scalp health. Furthermore, compared to the addition of either angustifolia extract or Rheum palmatum root extract alone, the present composition containing both angustifolia extract and Rheum palmatum root extract exhibits superior stability, demonstrating a synergistic effect between the angustifolia extract and Rheum palmatum root extract.

[0118] By comparing the test results of Comparative Example 1 with those of Comparative Example 5, it can be seen that the addition of angustifolia extract and rheum palmatum root extract can reduce the amount of PEG-40 hydrogenated castor oil (solubilizing emulsifier) while maintaining the stability of the composition of the present application, making the use of the composition of the present application more refreshing.

[0119] 3. Conduct instrument efficacy evaluation and human sensory evaluation

[0120] Eight groups of volunteers were recruited, each containing 20 volunteers. The first group of volunteers used Example 1, the second group of volunteers used Example 2, and so on. Sensory experience evaluation was performed after 7 days of use. The test results are shown in Table 6.

[0121] Table 6

[0122]

[0123]

[0124] Comparison of the test results of Examples 1-3 with Comparative Example 4 shows that the composition of the present application has a low scalp oil content after 3 hours and 6 hours of use, showing significant oil control efficacy, keeping scalp oil within a healthy range, thereby reducing the possibility of scalp microbial imbalance, reducing irritants secreted by scalp microorganisms, reducing scalp irritation, and improving scalp oiliness, itching, and redness, making the scalp more refreshed and healthy. Furthermore, after one week of use, the composition of the present application can reduce dandruff, effectively soothe the scalp, improve the skin redness score, and significantly improve the transepidermal water loss of the scalp, indicating that the composition of the present application has excellent anti-dandruff and moisturizing properties, can maintain scalp moisture, restore the scalp barrier, and reduce the phenomenon of dry and flaky scalp.

[0125] The experimental results of Examples 1 to 3 show that the optimal addition amount of Epilobium angustifolium extract is 5%. If the addition amount is increased, the improvement of oil control and anti-aging effects is relatively limited.

[0126] By comparing the test results of Example 2 with those of Comparative Examples 2 to 3, it can be seen that compared with adding the angustifolia extract and the palmate rhubarb root extract alone, the simultaneous addition of the angustifolia extract and the palmate rhubarb root extract can enhance the oil control, anti-dandruff, moisturizing, soothing and scalp anti-aging properties of the present application composition, indicating that the orchid extract and the palmate rhubarb root extract have a synergistic effect. Palmate rhubarb mainly contains anthraquinone compounds such as emodin and chrysophanol, which have astringent, antibacterial and sebaceous gland activity regulating effects. Such ingredients can inhibit excessive proliferation of sebaceous gland cells, reduce oil secretion, and improve the absorption efficiency of other active ingredients by promoting skin microcirculation. Angustifolia extract is rich in polyphenolic compounds (such as ellagic acid and flavonoids), which have anti-inflammatory, antioxidant and microbial flora regulating effects. In scalp care, angustifolia can inhibit the reproduction of pathogenic bacteria such as Malassezia, reduce oil oxidation and inflammatory reactions caused by microbial imbalance, thereby indirectly reducing sebum secretion, reducing scalp irritation, accelerating renewal cycle, thereby improving scalp condition and maintaining scalp health. At the same time, Epilobium angustifolium extract can regulate the water-oil balance of the head, directly reducing oil secretion, maintaining scalp moisture, and restoring the scalp's barrier function. The anthraquinones in Rheum palmatum are fat-soluble, while the polyphenols in Epilobium angustifolium are mostly water-soluble. The combination of the two enhances the penetration efficiency of the active ingredients through the synergistic effect of solvents of different polarities. Their pathways of action cover both the "upstream regulation" (cell activity) and "downstream inhibition" (inflammation and oxidation) of oil secretion, forming a closed-loop oil control mechanism.

[0127] The preferred embodiments of the present invention are described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the scope of protection of the present invention.

[0128] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. To avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0129] In addition, the various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A scalp care composition containing an herbaceous herb extract, characterized in that: The invention comprises the following components calculated by weight percentage: 0.3% to 0.7% of angustifolia herb extract; 0.3% to 0.8% of rheum palmatum root extract; 0.5% to 1.5% of capryloyl glycine; 0.1% to 0.5% of dipotassium glycyrrhizate; 0.5% to 1% of a skin conditioner; 5% to 7% of ethanol; 0.5% to 5% of a polyol; 0.05% to 0.2% of a cooling agent; 0.2% to 0.5% of a solubilizing emulsifier; 0.05% to 0.2% of a flavoring agent; 0.1% to 1% of a preservative; 0.01% to 0.5% of a pH regulator; and the balance of pure water.

2. The scalp care composition containing an epilobium extract according to claim 1, wherein The preparation method of the angustifolia extract comprises the following steps: S1 washed, ground, dried and crushed the whole herb of Epilobium, and the crushed Epilobium powder was placed in a reactor; S2. The crushed Angustifolia powder was placed in a reactor, distilled water was added and mixed evenly, and the mixed solution was added to a high-pressure cell disruptor for intermittent disruption until more than 90% of the cells were disrupted; S3. The solution obtained in step S2 is subjected to ultrasonic oscillation extraction; S4. The solution obtained in step S3 is placed in a centrifuge and centrifuged, and the supernatant is taken after centrifugation; S5. The supernatant was concentrated by vacuum evaporation to 5% of the original volume to obtain a concentrate; S6. The concentrated solution is vacuum extracted and filtered using a microporous filter membrane to obtain an angustifolia extract.

3. The scalp care composition containing an epilobium extract according to claim 2, wherein The ultrasonic oscillation extraction has a power of 50 KHz, a temperature of 30° C., and a time of 30 to 40 minutes.

4. The scalp care composition containing an epilobium extract according to claim 2, wherein The vacuum degree of the vacuum evaporation concentration is 0.05-0.1 MPa, and the temperature is 50-60°C.

5. The scalp care composition containing an epilobium extract according to claim 1, wherein The skin conditioning agent includes one or more of betaine, sodium PCA, niacinamide, vitamin B6, and tocopheryl acetate.

6. The scalp care composition containing an Epilobium angustifolium extract according to claim 1, wherein The polyol includes one or more of propylene glycol, 1,3-propanediol, butylene glycol, and glycerol.

7. The scalp care composition containing an epilobium extract according to claim 1, wherein The cooling agent includes one or more of menthol, menthol lactate, and encapsulated menthol lactate.

8. The scalp care composition containing an epilobium extract according to claim 1, wherein The solubilizing emulsifier includes one or more of PEG-40 hydrogenated castor oil and PPG-26-butane ether-26.

9. The scalp care composition containing an Epilobium angustifolium extract according to claim 1, wherein The preservatives include one or more of phenoxyethanol, sodium benzoate, chlorphenesin, benzyl alcohol, and ethylhexylglycerin.

10. A method for preparing the scalp care composition containing Epilobium angustifolium extract according to any one of claims 1 to 9, characterized in that: The following steps are involved: A1. Dissolve capryloylglycine in hot water above 60°C and adjust the pH to 5.0-6.0 with sodium hydroxide. A2. Add the polyol to the solution obtained in step A1 and stir evenly; A3. After the solution obtained in step A2 is cooled to room temperature, ethanol is added and stirred; A4. The skin conditioning agent and dipotassium glycyrrhizate were dispersed and dissolved in pure water and then added to the solution obtained in step A3; A5. After the extract of Epilobium angustifolium and Rhubarb palmatum extract was completely dissolved in pure water, the solution obtained was added to A4 and stirred evenly; A6. After the solubilizing emulsifier, cooling agent, preservative and flavoring agent are mixed and fully dissolved, the solution obtained by A5 is added while stirring and stirred; A7. Re-test the pH value and adjust the pH value to 5.0-6.0; A8. The sample obtained in A7 was aged at low temperature and then filtered to obtain a scalp care composition containing an herbaceous leaf extract.

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